ComfyUI Extension: Bjornulf_custom_nodes

Authored by justUmen

Created

Updated

72 stars

Nodes: Ollama, Green Screen to Transparency, Save image for Bjornulf LobeChat, Text with random Seed, Random line from input, Combine images (Background+Overlay alpha), Image to grayscale (black & white), Remove image Transparency (alpha), Resize Image, ...

Custom Nodes (0)

    README

    πŸ”— Comfyui : Bjornulf_custom_nodes v0.63 πŸ”—

    A list of 110 custom nodes for Comfyui : Display, manipulate, create and edit text, images, videos, loras, generate characters and more.
    You can manage looping operations, generate randomized content, trigger logical conditions, pause and manually control your workflows and even work with external AI tools, like Ollama or Text To Speech.

    Coffee : β˜•β˜•β˜•β˜•β˜• 5/5

    Support me and my work : ❀️❀️❀️ https://ko-fi.com/bjornulf ❀️❀️❀️

    ☘ This project is part of my AI trio. ☘

    1 - πŸ“ Text/Chat AI generation : Bjornulf Lobe Chat Fork
    2 - πŸ”Š Speech AI generation : Bjornulf Text To Speech
    <u>3 - 🎨 Image AI generation : Bjornulf Comfyui custom nodes (you are here)</u>

    πŸ“‹ Nodes menu by category

    πŸ‘ Display and Show πŸ‘

    1. πŸ‘ Show (Text, Int, Float)
    49. πŸ“ΉπŸ‘ Video Preview
    68. πŸ”’ Add line numbers
    71. πŸ‘ Show (Int)
    72. πŸ‘ Show (Float)
    73. πŸ‘ Show (String/Text)
    74. πŸ‘ Show (JSON)

    βœ’ Text βœ’

    2. βœ’ Write Text
    3. βœ’πŸ—” Advanced Write Text (+ 🎲 random selection and πŸ…°οΈ variables)
    4. πŸ”— Combine Texts
    15. πŸ’Ύ Save Text
    26. 🎲 Random line from input
    28. πŸ”’πŸŽ² Text with random Seed
    32. πŸ§‘πŸ“ Character Description Generator
    48. πŸ”€πŸŽ² Text scrambler (πŸ§‘ Character)
    67. πŸ“βžœβœ¨ Text to Anything
    68. βœ¨βžœπŸ“ Anything to Text
    75. πŸ“βžœπŸ“ Replace text

    πŸ”₯ Text Generator πŸ”₯

    81. πŸ”₯πŸ“ Text Generator πŸ“πŸ”₯
    82. πŸ‘©β€πŸ¦°πŸ“ Text Generator (Character Female)
    83. πŸ‘¨β€πŸ¦°πŸ“ Text Generator (Character Male)
    84. πŸ‘ΎπŸ“ Text Generator (Character Creature)
    85. πŸ’ƒπŸ•ΊπŸ“ Text Generator (Character Pose)
    86. πŸ”§πŸ‘¨β€πŸ”§πŸ“ Text Generator (Object for Character)
    87. πŸŒ„πŸ“ Text Generator (Scene)
    88. πŸŽ¨πŸ“ Text Generator (Style)
    89. πŸ‘— Text Generator (Outfit Female)
    90. πŸ‘š Text Generator (Outfit Male)
    91. β™»πŸ”₯πŸ“ List Looper (Text Generator)
    92. β™»πŸŒ„πŸ“ List Looper (Text Generator Scenes)
    93. β™»πŸŽ¨πŸ“ List Looper (Text Generator Styles)
    94. β™»πŸ’ƒπŸ•ΊπŸ“ List Looper (Text Generator Poses)
    95. β™»πŸ‘¨β€πŸ¦°πŸ‘©β€πŸ¦°πŸ‘Ύ List Looper (Text Generator Characters)
    96. β™»πŸ‘š List Looper (Text Generator Outfits Male)
    97. β™»πŸ‘— List Looper (Text Generator Outfits Female)

    β™» Loop β™»

    6. β™» Loop
    7. β™» Loop Texts
    8. β™» Loop Integer
    9. β™» Loop Float
    10. β™» Loop All Samplers
    11. β™» Loop All Schedulers
    12. β™» Loop Combos
    27. β™» Loop (All Lines from input)
    33. β™» Loop (All Lines from input πŸ”— combine by lines)
    38. β™»πŸ–Ό Loop (Images)
    39. β™» Loop (βœ’πŸ—” Advanced Write Text + πŸ…°οΈ variables)
    42. β™» Loop (Model+Clip+Vae) - aka Checkpoint / Model
    53. β™» Loop Load checkpoint (Model Selector)
    54. β™»πŸ‘‘ Loop Lora Selector
    56. β™»πŸ“ Loop Sequential (Integer)
    57. β™»πŸ“ Loop Sequential (input Lines)
    90. β™»πŸ”₯πŸ“ List Looper (Text Generator)
    91. β™»πŸŒ„πŸ“ List Looper (Text Generator Scenes)
    92. β™»πŸŽ¨πŸ“ List Looper (Text Generator Styles)
    93. β™»πŸ’ƒπŸ•ΊπŸ“ List Looper (Text Generator Poses)
    94. β™»πŸ‘¨β€πŸ¦°πŸ‘©β€πŸ¦°πŸ“ List Looper (Text Generator Characters)
    95. β™»πŸ‘š List Looper (Text Generator Outfits Male)
    96. β™»πŸ‘— List Looper (Text Generator Outfits Female)

    🎲 Randomization 🎲

    3. βœ’πŸ—” Advanced Write Text (+ 🎲 random selection and πŸ…°οΈ variables)
    5. 🎲 Random (Texts)
    26. 🎲 Random line from input
    28. πŸ”’πŸŽ² Text with random Seed
    37. πŸŽ²πŸ–Ό Random Image
    40. 🎲 Random (Model+Clip+Vae) - aka Checkpoint / Model
    41. 🎲 Random Load checkpoint (Model Selector)
    48. πŸ”€πŸŽ² Text scrambler (πŸ§‘ Character)
    55. πŸŽ²πŸ‘‘ Random Lora Selector

    πŸ–ΌπŸ’Ύ Image Save πŸ’ΎπŸ–Ό

    16. πŸ’ΎπŸ–ΌπŸ’¬ Save image for Bjornulf LobeChat
    17. πŸ’ΎπŸ–Ό Save image as tmp_api.png Temporary API
    18. πŸ’ΎπŸ–ΌπŸ“ Save image to a chosen folder name
    14. πŸ’ΎπŸ–Ό Save Exact name

    πŸ–ΌπŸ“₯ Image Load πŸ“₯πŸ–Ό

    29. πŸ“₯πŸ–Ό Load Image with Transparency β–’
    43. πŸ“₯πŸ–ΌπŸ“‚ Load Images from output folder

    πŸ–Ό Image - others πŸ–Ό

    13. πŸ“ Resize Image
    22. πŸ”² Remove image Transparency (alpha)
    23. πŸ”² Image to grayscale (black & white)
    24. πŸ–Ό+πŸ–Ό Stack two images (Background + Overlay)
    25. πŸŸ©βžœβ–’ Green Screen to Transparency
    29. β¬‡οΈπŸ–Ό Load Image with Transparency β–’
    30. πŸ–Όβœ‚ Cut image with a mask
    37. πŸŽ²πŸ–Ό Random Image
    38. β™»πŸ–Ό Loop (Images)
    43. β¬‡οΈπŸ“‚πŸ–Ό Load Images from output folder
    44. πŸ–ΌπŸ‘ˆ Select an Image, Pick
    46. πŸ–ΌπŸ” Image Details
    47. πŸ–Ό Combine Images
    60. πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Horizontally)
    61. πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Vertically)
    62. πŸ¦™πŸ‘ Ollama Vision
    70. πŸ“ Resize Image Percentage
    80. 🩷 Empty Latent Selector

    πŸš€ Load checkpoints πŸš€

    40. 🎲 Random (Model+Clip+Vae) - aka Checkpoint / Model
    41. 🎲 Random Load checkpoint (Model Selector)
    42. β™» Loop (Model+Clip+Vae) - aka Checkpoint / Model
    53. β™» Loop Load checkpoint (Model Selector)

    πŸš€ Load loras πŸš€

    54. β™» Loop Lora Selector
    55. 🎲 Random Lora@ Selector

    ☁ Image Creation : API / cloud / remote ☁

    106. ☁🎨 API Image Generator (FalAI) ☁
    107. ☁🎨 API Image Generator (CivitAI) ☁
    108. β˜πŸ‘‘ Add Lora (API ONLY - CivitAI) πŸ‘‘β˜
    109. ☁🎨 API Image Generator (Black Forest Labs - Flux) ☁
    110. ☁🎨 API Image Generator (Stability - Stable Diffusion) ☁

    πŸ“₯ Take from CivitAI πŸ“₯

    98. πŸ“₯ Load checkpoint SD1.5 (+Download from CivitAi)
    99. πŸ“₯ Load checkpoint SDXL (+Download from CivitAi)
    100. πŸ“₯ Load checkpoint Pony (+Download from CivitAi)
    101. πŸ“₯ Load checkpoint FLUX Dev (+Download from CivitAi)
    102. πŸ“₯ Load checkpoint FLUX Schnell (+Download from CivitAi)
    103. πŸ“₯πŸ‘‘ Load Lora SD1.5 (+Download from CivitAi)
    104. πŸ“₯πŸ‘‘ Load Lora SDXL (+Download from CivitAi)
    105. πŸ“₯πŸ‘‘ Load Lora Pony (+Download from CivitAi)

    πŸ“Ή Video πŸ“Ή

    20. πŸ“Ή Video Ping Pong
    21. πŸ“Ή Images to Video (FFmpeg)
    49. πŸ“ΉπŸ‘ Video Preview
    50. πŸ–ΌβžœπŸ“Ή Images to Video path (tmp video)
    51. πŸ“ΉβžœπŸ–Ό Video Path to Images
    52. πŸ”ŠπŸ“Ή Audio Video Sync 58. πŸ“ΉπŸ”— Concat Videos
    59. πŸ“ΉπŸ”Š Combine Video + Audio
    60. πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Horizontally)
    61. πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Vertically)
    76. βš™πŸ“Ή FFmpeg Configuration πŸ“Ήβš™
    77. πŸ“ΉπŸ” Video details βš™
    78. πŸ“ΉβžœπŸ“Ή Convert Video
    79. πŸ“ΉπŸ”— Concat Videos from list

    πŸ€– AI πŸ€–

    19. πŸ¦™πŸ’¬ Ollama Talk
    62. πŸ¦™πŸ‘ Ollama Vision
    63. πŸ¦™ Ollama Configuration βš™
    64. πŸ¦™ Ollama Job Selector πŸ’Ό
    65. πŸ¦™ Ollama Persona Selector πŸ§‘
    31. πŸ“βžœπŸ”Š TTS - Text to Speech
    66. πŸ”ŠβžœπŸ“ STT - Speech to Text

    πŸ”Š Audio πŸ”Š

    31. πŸ“βžœπŸ”Š TTS - Text to Speech
    52. πŸ”ŠπŸ“Ή Audio Video Sync
    59. πŸ“ΉπŸ”Š Combine Video + Audio
    66. πŸ”ŠβžœπŸ“ STT - Speech to Text

    πŸ’» System πŸ’»

    34. 🧹 Free VRAM hack

    🧍 Manual user Control 🧍

    35. ⏸️ Paused. Resume or Stop, Pick πŸ‘‡
    36. ⏸️ Paused. Select input, Pick πŸ‘‡

    🧠 Logic / Conditional Operations 🧠

    45. πŸ”€ If-Else (input / compare_with)

    ☁ Usage in cloud :

    Comfyui is great for local usage, but I sometimes need more power than what I have...
    I have a computer with a 4070 super with 12GB and flux fp8 simple wokflow take about ~40 seconds. With a 4090 in the cloud I can run flux fp16 in ~12 seconds. (There are of course also some workflow that I can't even run locally.)

    My referal link for Runpod : https://runpod.io?ref=tkowk7g5 (If you use that i will have a commission, at no extra cost for you.)
    If you want to use my nodes and comfyui in the cloud (and can install more stuff), I'm managing an optimized ready-to-use template on runpod : https://runpod.io/console/deploy?template=r32dtr35u1&ref=tkowk7g5
    Template name : bjornulf-comfyui-allin-workspace, can be operational in ~3 minutes. (Depending on your pod, setup and download of extra models or whatever not included.)
    You need to create and select a network volume before using that, size is up to you, i have 50Gb Storage because i use cloud only for Flux or lora training on a 4090. (~0.7$/hour)
    ⚠️ When pod is ready, you need to open a terminal in browser (After clicking on connect from your pod) and use this to launch ComfyUI manually : cd /workspace/ComfyUI && python main.py --listen 0.0.0.0 --port 3000 or the alias start_comfy (Much better to control it with a terminal, check logs, etc...)
    After that you can just click on the Connect to port 3000 button.
    As file manager, you can use the included JupyterLab on port 8888.
    If you have any issues with it, please let me know.
    It will manage everything in Runpod network storage (/workspace/ComfyUI), so you can stop and start the cloud GPU without losing anything, change GPU or whatever.
    Zone : I recommend EU-RO-1, but up to you.
    Top-up your Runpod account with minimum 10$ to start.
    ⚠️ Warning, you will pay by the minute, so not recommended for testing or learning comfyui. Do that locally !!!
    Run cloud GPU only when you already have your workflow ready to run.
    Advice : take a cheap GPU for testing, downloading models or settings things up.
    To download checkpoint or anything else, you need to use the terminal.
    For downloading from Huggingface (get token here https://huggingface.co/settings/tokens).
    Here is example for everything you need for flux dev :

    huggingface-cli login --token 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
    huggingface-cli download black-forest-labs/FLUX.1-dev flux1-dev.safetensors --local-dir /workspace/ComfyUI/models/unet
    huggingface-cli download comfyanonymous/flux_text_encoders clip_l.safetensors --local-dir /workspace/ComfyUI/models/clip
    huggingface-cli download comfyanonymous/flux_text_encoders t5xxl_fp16.safetensors --local-dir /workspace/ComfyUI/models/clip
    huggingface-cli download black-forest-labs/FLUX.1-dev ae.safetensors --local-dir /workspace/ComfyUI/models/vae
    

    To use Flux you can just drag and drop in your browser comfyui interface the .json from my github repo : workflows/FLUX_dev_troll.json, direct link : https://github.com/justUmen/ComfyUI-BjornulfNodes/blob/main/workflows/FLUX_dev_troll.json.

    For downloading from civitai (get token here https://civitai.com/user/account), just copy/paste the link of checkpoint you want to download and use something like that, with your token in URL :

    CIVITAI="8b275fada679ba5812b3da2bf35016f6"
    wget --content-disposition -P /workspace/ComfyUI/models/checkpoints "https://civitai.com/api/download/models/272376?type=Model&format=SafeTensor&size=pruned&fp=fp16&token=$CIVITAI"
    

    If you want to download for example the entire output folder, you can just compress it :

    cd /workspace/ComfyUI/output && tar -czvf /workspace/output.tar.gz .
    

    Then you can download it from the file manager JupyterLab.

    If you have any issues with this template from Runpod, please let me know, I'm here to help. 😊

    πŸ— Dependencies (nothing to do for runpod ☁)

    πŸͺŸπŸ Windows : Install dependencies on windows with embedded python (portable version)

    First you need to find this python_embedded python.exe, then you can right click or shift + right click inside the folder in your file manager to open a terminal there.

    This is where I have it, with the command you need :
    H:\ComfyUI_windows_portable\python_embeded> .\python.exe -m pip install pydub ollama opencv-python

    When you have to install something you can retake the same code and install the dependency you want :
    .\python.exe -m pip install whateveryouwant

    You can then run comfyui.

    🐧🐍 Linux : Install dependencies (without venv, not recommended)

    • pip install ollama (you can also install ollama if you want : https://ollama.com/download) - You don't need to really install it if you don't want to use my ollama node. (BUT you need to run pip install ollama)
    • pip install pydub (for TTS node)
    • pip install opencv-python

    🐧🐍 Linux : Install dependencies with python virtual environment (venv)

    If you want to use a python virtual environment only for comfyUI, which I recommended, you can do that for example (also pre-install pip) :

    sudo apt-get install python3-venv python3-pip
    python3 -m venv /the/path/you/want/venv/bjornulf_comfyui
    

    Once you have your environment in this new folder, you can activate it with and install dependencies inside :

    source /the/path/you/want/venv/bjornulf_comfyui/bin/activate
    pip install ollama pydub opencv-python
    

    Then you can start comfyui with this environment (notice that you need to re-activate it each time you want to launch comfyui) :

    cd /where/you/installed/ComfyUI && python main.py
    

    πŸ“ Changelog

    • v0.2: Improve ollama node with system prompt + model selection.
    • v0.3: Add a new node : Save image to a chosen folder.
    • v0.3: Add comfyui Metadata / workflow to all my image-related nodes.
    • v0.4: Support transparency option with webm format, options encoders. As well as input for audio stream.
    • v0.5: New node : Remove image transparency (alpha) - Fill alpha channel with solid color.
    • v0.5: New node : Image to grayscale (black & white) - Convert an image to grayscale.
    • v0.6: New node : Combine images (Background + Overlay) - Combine two images into a single image.
    • v0.7: Replace Save API node with Save Bjornulf Lobechat node. (For my custom lobe-chat)
    • v0.8: Combine images : add an option to put image top, bottom or center.
    • v0.8: Combine texts : add option for slashes /
    • v0.8: Add basic node to transform greenscreen in to transparency.
    • v0.9: Add a new node : Return one random line from input.
    • v0.10: Add a new node : Loop (All Lines from input) - Iterate over all lines from an input text.
    • v0.11: Add a new node : Text with random Seed - Generate a random seed, along with text.
    • v0.12: Combine images : Add option to move vertically and horizontally. (from -50% to 150%)
    • v0.13: Add a new node: Load image with transparency (alpha) - Load an image with transparency.
    • v0.14: Add a new node: Cut image from a mask
    • v0.15: Add two new nodes: TTS - Text to Speech and Character Description Generator
    • v0.16: Big changes on Character Description Generator
    • v0.17: New loop node, combine by lines.
    • v0.18: New loop node, Free VRAM hack
    • v0.19: Changes for save to folder node : ignore missing images filenames, will use the highest number found + 1.
    • v0.20: Changes for lobechat save image : include the code of free VRAM hack + ignore missing images filenames
    • v0.21: Add a new write text node that also display the text in the comfyui console (good for debugging)
    • v0.22: Allow write text node to use random selection like this {hood|helmet} will randomly choose between hood or helmet.
    • v0.23: Add a new node: Pause, resume or stop workflow.
    • v0.24: Add a new node: Pause, select input, pick one.
    • v0.25: Two new nodes: Loop Images and Random image.
    • v0.26: New node : Loop write Text. Also increase nb of inputs allowed for most nodes. (+ update some breaking changes)
    • v0.27: Two new nodes : Loop (Model+Clip+Vae) and Random (Model+Clip+Vae) - aka Checkpoint / Model
    • v0.28: Fix random texts and add a lot of screenshots examples for several nodes.
    • v0.29: Fix floating points issues with loop float node.
    • v0.30: Update the basic Loop node with optional input.
    • v0.31: ❗Sorry, Breaking changes for Write/Show text nodes, cleaner system : 1 simple write text and the other is 1 advanced with console and special syntax. Also Show can now manage INT, FLOAT, TEXT.
    • v0.32: Quick rename to avoid breaking loop_text node.
    • v0.33: Control random on paused nodes, fix pydub sound bug permissions on Windows.
    • v0.34: Two new nodes : Load Images from output folder and Select an Image, Pick.
    • v0.35: Great improvements of the TTS node 31. It will also save the audio file in the "ComfyUI/Bjornulf_TTS/" folder. - Not tested on windows yet -
    • v0.36: Fix random model.
    • v0.37: New node : Random Load checkpoint (Model Selector). Alternative to the random checkpoint node. (Not preloading all checkpoints in memory, slower to switch between checkpoints, but more outputs to decide where to store your results.)
    • v0.38: New node : If-Else logic. (input == compare_with), examples with different latent space size. +fix some deserialization issues.
    • v0.39: Add variables management to Advanced Write Text node.
    • v0.40: Add variables management to Loop Advanced Write Text node. Add menu for all nodes to the README.
    • v0.41: Two new nodes : image details and combine images. Also ❗ Big changes to the If-Else node. (+many minor changes)
    • v0.42: Better README with category nodes, changes some node titles
    • v0.43: Add control_after_generate to Ollama and allow to keep in VRAM for 1 minute if needed. (For chaining quick generations.) Add fallback to 0.0.0.0
    • v0.44: Allow ollama to have a custom url in the file ollama_ip.txt in the comfyui custom nodes folder. Minor changes, add details/updates to README.
    • v0.45: Add a new node : Text scrambler (Character), change text randomly using the file scrambler/scrambler_character.json in the comfyui custom nodes folder.
    • v0.46: ❗ A lot of changes to Video nodes. Save to video is now using FLOAT for fps, not INT. (A lot of other custom nodes do that as well...) Add node to preview video, add node to convert a video path to a list of images. add node to convert a list of images to a temporary video + video_path. add node to synchronize duration of audio with video. (useful for MuseTalk) change TTS node with many new outputs ("audio_path", "full_path", "duration") to reuse with other nodes like MuseTalk, also TTS rename input to "connect_to_workflow", to avoid mistakes sending text to it.
    • v0.47: New node : Loop Load checkpoint (Model Selector).
    • v0.48: Two new nodes for loras : Random Lora Selector and Loop Lora Selector.
    • v0.49: New node : Loop Sequential (Integer) - Loop through a range of integer values. (But once per workflow run), audio sync is smarter and adapt the video duration to the audio duration.
    • v0.50: allow audio in Images to Video path (tmp video). Add three new nodes : Concat Videos, combine video/audio and Loop Sequential (input Lines). save text changes to write inside Comfyui folder. Fix random line from input outputing LIST. ❗ Breaking change to audio/video sync node, allowing different types as input.
    • v0.51: Fix some issues with audio/video sync node. Add two new nodes : merge images/videos vertical and horizontal. add requirements.txt and ollama_ip.txt
    • v0.52-53: Revert name git to Bjornulf_custom_nodes, match registry comfy
    • v0.54-55: add opencv-python to requirements.txt
    • 0.56: ❗Breaking changes : ollama node simplified, no ollama_ip.txt needed, waiting for collection ollama nodes to be ready.
    • 0.57: ❗❗Huge changes, new Ollama node "Ollama Chat" with real functionalities. 5 Ollama nodes total. (Model selector + Job selector + Persona selector + Ollama vision + Ollama Talk) Ollama talk use context and can use context file. Add number of lines / current counter + next to sequential nodes. Add new node STT. (+ faster_whisper dep) better management of empty loras/checkpoints on selectors. (list preset) Add "default_for_language" for TTS node, taking the default voice for a language (ex: fr/default.wav) Otherwise take the first wav with the selected language.
    • 0.58: small fix in model selector default value. (Set to None by default)
    • 0.59: A lot of Javascript fixing to avoid resizing and better properties mangement / recoveries
    • 0.60: Revert changes from ollama_talk (implement _user mode later / another node)
    • 0.61: Add/modify a bunch of Ffmpeg / video nodes. With a global configuration system and toggle python-ffmpeg / system.
    • 0.62: MASSIVE update, Text Generator nodes. (15 nodes), API nodes generate (civitai / black forest labs / fal.ai), API civit ai download models nodes, lora
    • 0.63: delete long file, useless

    πŸ“ Nodes descriptions

    1 - πŸ‘ Show (Text, Int, Float)

    Description:
    The show node will only display text, or a list of several texts. (read only node)
    3 types are managed : Green is for STRING type, Orange is for FLOAT type and blue is for INT type. I put colors so I/you don't try to edit them. 🀣

    Update 0.61 : You now also have 4 other nodes to display format specific values : INT, FLOAT, STRING and JSON (STRING)
    These are convenient because these are automatically recommended on drag and drop.

    Show Text

    2 - βœ’ Write Text

    Description:
    Simple node to write text.

    write Text

    3 - βœ’πŸ—” Advanced Write Text (+ 🎲 random selection and πŸ…°οΈ variables)

    Description:
    Advanced Write Text node allows for special syntax to accept random variants, like {hood|helmet} will randomly choose between hood or helmet.
    You also have seed and control_after_generate to manage the randomness.
    It is also displaying the text in the comfyui console. (Useful for debugging)
    Example of console logs :

    Raw text: photo of a {green|blue|red|orange|yellow} {cat|rat|house}
    Picked text: photo of a green house
    

    write Text Advanced

    You can also create and reuse variables with this syntax : <name>. Usage example :

    variables

    4 - πŸ”— Combine Texts

    Description:
    Combine multiple text inputs into a single output. (can have separation with : comma, space, new line or nothing.)

    Combine Texts

    5 - 🎲 Random (Texts)

    Description:
    Generate and display random text from a predefined list. Great for creating random prompts.
    You also have control_after_generate to manage the randomness.

    Random Text

    6 - β™» Loop

    Description:
    General-purpose loop node, you can connect that in between anything.

    Loop

    It has an optional input, if no input is given, it will loop over the value of the STRING "if_no_input" (take you can edit).
    ❗ Careful this node accept everything as input and output, so you can use it with texts, integers, images, mask, segs etc... but be consistent with your inputs/outputs.
    Do not use this Loop if you can do otherwise.

    This is an example together with my node 28, to force a different seed for each iteration :
    Loop

    7 - β™» Loop Texts

    Description:
    Cycle through a list of text inputs.

    Loop Texts

    Here is an example of usage with combine texts and flux :
    Loop Texts example

    8 - β™» Loop Integer

    Description:
    Iterate through a range of integer values, good for steps in ksampler, etc...

    Loop Integer Loop Int + Show Text

    ❗ Don't forget that you can convert ksampler widgets to input by right-clicking the ksampler node :
    Widget to Input

    Here is an example of usage with ksampler (Notice that with "steps" this node isn't optimized, but good enough for quick testing.) :
    Widget to Input

    9 - β™» Loop Float

    Description:
    Loop through a range of floating-point numbers, good for cfg, denoise, etc...

    Loop Float + Show Text Loop Float

    Here is an example with controlnet, trying to make a red cat based on a blue rabbit :
    Loop All Samplers

    10 - β™» Loop All Samplers

    Description:
    Iterate over all available samplers to apply them one by one. Ideal for testing.

    Loop All Samplers

    Here is an example of looping over all the samplers with the normal scheduler :
    Loop All Samplers

    11 - β™» Loop All Schedulers

    Description:
    Iterate over all available schedulers to apply them one by one. Ideal for testing. (same idea as sampler above, but for schedulers)

    Loop All Schedulers

    12 - β™» Loop Combos

    Description:
    Generate a loop from a list of my own custom combinations (scheduler+sampler), or select one combo manually.
    Good for testing.

    Loop Combos

    Example of usage to see the differences between different combinations :
    example combos

    13/14 - πŸ“ + πŸ–Ό Resize and Save Exact name βš οΈπŸ’£

    Description:
    Resize an image to exact dimensions. The other node will save the image to the exact path.
    βš οΈπŸ’£ Warning : The image will be overwritten if it already exists.

    Resize and Save Exact

    15 - πŸ’Ύ Save Text

    Description:
    Save the given text input to a file. Useful for logging and storing text data.
    If the file already exist, it will add the text at the end of the file.

    Save Text

    16 - πŸ’ΎπŸ–ΌπŸ’¬ Save image for Bjornulf LobeChat (❗For my custom lobe-chat❗)

    Description:
    ❓ I made that node for my custom lobe-chat to send+receive images from Comfyui API : lobe-chat
    It will save the image in the folder output/BJORNULF_LOBECHAT/. The name will start at api_00001.png, then api_00002.png, etc...
    It will also create a link to the last generated image at the location output/BJORNULF_API_LAST_IMAGE.png.
    This link will be used by my custom lobe-chat to copy the image inside the lobe-chat project.

    Save Bjornulf Lobechat

    17 - πŸ’ΎπŸ–Ό Save image as tmp_api.png Temporary API βš οΈπŸ’£

    Description:
    Save image for short-term use : ./output/tmp_api.png βš οΈπŸ’£

    Save Temporary API

    18 - πŸ’ΎπŸ–ΌπŸ“ Save image to a chosen folder name

    Description:
    Save image in a specific folder : my_folder/00001.png, my_folder/00002.png, etc...
    Also allow multiple nested folders, like for example : animal/dog/small.

    Save Temporary API

    19 - πŸ¦™πŸ’¬ Ollama Talk

    Description:
    Use Ollama inside Comfyui. (Require the backend Ollama to be installed and currently running.)
    Use by default the model llama3.2:3b and the URL http://0.0.0.0:11434. (For custom configuration, use node 63)

    Example of basic usage :
    Ollama

    Example of usage with context, notice that with context you can follow up a conversation, "there" is clearly understood as "Bucharest" :
    Ollama

    You can also use use_context_file (set to True), this will save the context in a file : ComfyUI/Bjornulf/ollama_context.txt.
    This way you can keep using the context without having to connect many nodes connected to each other, just run the same workflow several times.

    Example in 3 steps of context file conversation

    Step 1 : Notice that for now context is empty, so it will be the first message in ComfyUI/Bjornulf/ollama_context.txt :
    Ollama

    Step 2 : Notice that now the number of lines in context file has changed (These are the same as the updated_context):
    Ollama

    Step 3 : Notice that the number of lines keep incrementing.
    Ollama

    When clicking the reset Button, it will also save the context in : ComfyUI/Bjornulf/ollama_context_001.txt, ComfyUI/Bjornulf/ollama_context_002.txt, etc...

    ⚠️ If you want to have an "interactive" conversation, you can enable the option waiting_for_prompt.
    When set to True, it will create a Resume button, use this to unpause the node and process the prompt.

    Example in 3 steps of waiting_for_prompt interactive conversation

    Step 1: I run the workflow, notice that Show node is empty, the node is pausing the workflow and is waiting for you to edit the prompt. (Notice that at this moment, it is asking for the capital of France.)
    Ollama

    Step 2: I edit the prompt to change France into China, but the node won't process the request until you click on Resume.
    Ollama

    Step 3: I click on Resume button, this is when the request is done. Notice that it used China and not France.
    Ollama

    Other options :

    • You also have control_after_generate to force the node to rerun for every workflow run. (Even if there is no modification of the node or its inputs.)
    • You can set max_tokens to reduce the size of the answer, a token is about 3 english characters.
    • You can force the answer to be on a single line, can be useful.
    • You have the option to keep the mode in VRAM. (If you plan having to generate many times with the same prompt) - Each run will be significantly faster, but not free your VRAM for something else.

    ⚠️ Warning : Using vram_retention_minutes might be a bit heavy on your VRAM. Think about if you really need it or not. Most of the time, when using vram_retention_minutes, you don't want to have also a generation of image or anything else in the same time.

    20 - πŸ“Ή Video Ping Pong

    Description:
    Create a ping-pong effect from a list of images (from a video) by reversing the playback direction when reaching the last frame. Good for an "infinity loop" effect.

    Video Ping Pong

    21 - πŸ“Ή Images to Video

    Description:
    Combine a sequence of images into a video file.

    Images to Video

    ❓ I made this node because it supports transparency with webm format. (Needed for rembg)
    Temporary images are stored in the folder ComfyUI/temp_images_imgs2video/ as well as the wav audio file.

    22 - πŸ”² Remove image Transparency (alpha)

    Description:
    Remove transparency from an image by filling the alpha channel with a solid color. (black, white or greenscreen)
    Of course it takes in an image with transparency, like from rembg nodes.
    Necessary for some nodes that don't support transparency.

    Remove Alpha

    23 - πŸ”² Image to grayscale (black & white)

    Description:
    Convert an image to grayscale (black & white)

    Image to Grayscale

    Example : I sometimes use it with Ipadapter to disable color influence.
    But you can sometimes also want a black and white image...

    24 - πŸ–Ό+πŸ–Ό Stack two images (Background + Overlay)

    Description:
    Stack two images into a single image : a background and one (or several) transparent overlay. (allow to have a video there, just send all the frames and recombine them after.)

    Superpose Images

    Update 0.11 : Add option to move vertically and horizontally. (from -50% to 150%)
    ❗ Warning : For now, background is a static image. (I will allow video there later too.)
    ⚠️ Warning : If you want to directly load the image with transparency, use my node πŸ–Ό Load Image with Transparency β–’ instead of the Load Image node.

    25 - πŸŸ©βžœβ–’ Green Screen to Transparency

    Description:
    Transform greenscreen into transparency.
    Need clean greenscreen ofc. (Can adjust threshold but very basic node.)

    Greenscreen to Transparency

    26 - 🎲 Random line from input

    Description:
    Take a random line from an input text. (When using multiple "Write Text" nodes is annoying for example, you can use that and just copy/paste a list from outside.)
    You can change fixed/randomize for control_after_generate to have a different text each time you run the workflow. (or not)

    Random line from input

    27 - β™» Loop (All Lines from input)

    Description:
    Iterate over all lines from an input text. (Good for testing multiple lines of text.)

    Loop input

    28 - πŸ”’ Text with random Seed

    Description:
    ❗ This node is used to force to generate a random seed, along with text.
    But what does that mean ???
    When you use a loop (β™»), the loop will use the same seed for each iteration. (That is the point, it will keep the same seed to compare results.)
    Even with randomize for control_after_generate, it is still using the same seed for every loop, it will change it only when the workflow is done.
    Simple example without using random seed node : (Both images have different prompt, but same seed)

    Text with random Seed 1

    So if you want to force using another seed for each iteration, you can use this node in the middle. For example, if you want to generate a different image every time. (aka : You use loop nodes not to compare or test results but to generate multiple images.)
    Use it like that for example : (Both images have different prompt AND different seed)

    Text with random Seed 2

    Here is an example of the similarities that you want to avoid with FLUX with different prompt (hood/helmet) but same seed :

    Text with random Seed 3

    Here is an example of the similarities that you want to avoid with SDXL with different prompt (blue/red) but same seed :

    Text with random Seed 4

    FLUX : Here is an example of 4 images without Random Seed node on the left, and on the right 4 images with Random Seed node :

    Text with random Seed 5

    29 - πŸ–Ό Load Image with Transparency β–’

    Description:
    Load an image with transparency.
    The default Load Image node will not load the transparency.

    Load image Alpha

    30 - πŸ–Όβœ‚ Cut image with a mask

    Description:
    Cut an image from a mask.

    Cut image

    31 - πŸ”Š TTS - Text to Speech (100% local, any voice you want, any language)

    Description:
    Use my TTS server to generate high quality speech from text, with any voice you want, any language.
    Listen to the audio example

    TTS

    ❗ Node never tested on windows, only on linux for now. ❗

    Use my TTS server to generate speech from text, based on XTTS v2.
    ❗ Of course to use this comfyui node (frontend) you need to use my TTS server (backend) : https://github.com/justUmen/Bjornulf_XTTS
    I made this backend for https://github.com/justUmen/Bjornulf_lobe-chat, but you can use it with comfyui too with this node.
    After having Bjornulf_XTTS installed, you NEED to create a link in my Comfyui custom node folder called speakers : ComfyUI/custom_nodes/Bjornulf_custom_nodes/speakers
    That link must be a link to the folder where you installed/stored the voice samples you use for my TTS, like default.wav.
    If my TTS server is running on port 8020 (You can test in browser with the link http://localhost:8020/tts_stream?language=en&speaker_wav=default&text=Hello) and voice samples are good, you can use this node to generate speech from text.

    Details
    This node should always be connected to a core node : Preview audio.

    My node will generate and save the audio files in the ComfyUI/Bjornulf_TTS/ folder, followed by the language selected, the name of the voice sample, and the text.
    Example of audio file from the screenshot above : ComfyUI/Bjornulf_TTS/Chinese/default.wav/你吃了吗.wav
    You can notice that you don't NEED to select a chinese voice to speak chinese. Yes it will work, you can record yourself and make yourself speak whatever language you want.
    Also, when you select a voice with this format fr/fake_Bjornulf.wav, it will create an extra folder fr of course. : ComfyUI/Bjornulf_TTS/English/fr/fake_Bjornulf.wav/hello_im_me.wav. Easy to see that you are using a french voice sample for an english recording.

    control_after_generate as usual, it is used to force the node to rerun for every workflow run. (Even if there is no modification of the node or its inputs.)
    overwrite is used to overwrite the audio file if it already exists. (For example if you don't like the generation, just set overwrite to True and run the workflow again, until you have a good result. After you can set it to back to False. (Paraphrasing : without overwrite set to True, It won't generate the audio file again if it already exists in the Bjornulf_TTS folder.)
    autoplay is used to play the audio file inside the node when it is executed. (Manual replay or save is done in the preview audio node.)

    So... note that if you know you have an audio file ready to play, you can still use my node but you do NOT need my TTS server to be running. My node will just play the audio file if it can find it, won't try to connect th backend TTS server.
    Let's say you already use this node to create an audio file saying workflow is done with the Attenborough voice :

    TTS

    As long as you keep exactly the same settings, it will not use my server to play the audio file! You can safely turn the TTS server off, so it won't use your precious VRAM Duh. (TTS server should be using ~3GB of VRAM.)

    Also connect_to_workflow is optional, it means that you can make a workflow with ONLY my TTS node to pre-generate the audio files with the sentences you want to use later, example :
    TTS

    If you want to run my TTS nodes along side image generation, i recommend you to use my PAUSE node so you can manually stop the TTS server after my TTS node. When the VRAM is freed, you can the click on the RESUME button to continue the workflow.
    If you can afford to run both at the same time, good for you, but Locally I can't run my TTS server and FLUX at the same time, so I use this trick. :

    TTS

    32 - πŸ§‘πŸ“ Character Description Generator

    Description:
    Generate a character description based on a json file in the folder characters : ComfyUI/custom_nodes/Bjornulf_custom_nodes/characters
    Make your own json file with your own characters, and use this node to generate a description.

    characters characters

    ❗ For now it's very basic node, a lot of things are going to be added and changed !!!
    Some details are unusable for some checkpoints, very much a work in progress, the json structure isn't set in stone either.
    Some characters are included.

    33 - β™» Loop (All Lines from input πŸ”— combine by lines)

    Description:
    Sometimes you want to loop over several inputs but you also want to separate different lines of your output.
    So with this node, you can have the number of inputs and outputs you want. See example for usage.

    loop combined

    34 - 🧹 Free VRAM hack

    Description:
    So this is my attempt at freeing up VRAM after usage, I will try to improve that.

    free vram free vram

    For me, on launch ComfyUI is using 180MB of VRAM, after my clean up VRAM node it can go back down to 376MB.
    I don't think there is a clean way to do that, so I'm using a hacky way.
    So, not perfect but better than being stuck at 6GB of VRAM used if I know I won't be using it again...
    Just connect this node with your workflow, it takes anything as input and return it as output. You can therefore put it anywhere you want.
    ❗ Comfyui is using cache to run faster (like not reloading checkpoints), so only use this free VRAM node when you need it.
    ❗ For this node to work properly, you need to enable the dev/api mode in ComfyUI. (You can do that in the settings)
    It is also running an "empty/dummy" workflow to free up the VRAM, so it might take a few seconds to take effect after the end of the workflow.

    35 - ⏸️ Paused. Resume or Stop ?

    Description:
    Automatically pause the workflow, and rings a bell when it does. (play the audio bell.m4a file provided)

    pause resume stop pause resume stop pause resume stop

    You can then manually resume or stop the workflow by clicking on the node's buttons.
    I do that let's say for example if I have a very long upscaling process, I can check if the input is good before continuing. Sometimes I might stop the workflow and restart it with another seed.
    You can connect any type of node to the pause node, above is an example with text, but you can send an IMAGE or whatever else, in the node input = output. (Of course you need to send the output to something that has the correct format...)

    36 - βΈοΈπŸ” Paused. Select input, Pick one

    Description:
    Automatically pause the workflow, and rings a bell when it does. (play the audio bell.m4a file provided)

    pick input

    You can then manually select the input you want to use, and resume the workflow with it.
    You can connect this node to anything you want, above is an example with IMAGE. But you can pick whatever you want, in the node input = output.

    37 - πŸŽ²πŸ–Ό Random Image

    Description:
    Just take a random image from a list of images.

    random image

    38 - β™»πŸ–Ό Loop (Images)

    Description:
    Loop over a list of images.

    loop images

    Usage example : You have a list of images, and you want to apply the same process to all of them.
    Above is an example of the loop images node sending them to an Ipadapter workflow. (Same seed of course.)

    39 - β™» Loop (βœ’πŸ—” Advanced Write Text)

    Description:
    If you need a quick loop but you don't want something too complex with a loop node, you can use this combined write text + loop.

    loop write text

    It will take the same special syntax as the Advanced write text node {blue|red}, but it will loop over ALL the possibilities instead of taking one at random.
    0.40 : You can also use variables <name> in the loop.

    40 - 🎲 Random (Model+Clip+Vae) - aka Checkpoint / Model

    Description:
    Just simply take a trio at random from a load checkpoint node.

    random checkpoint

    Notice that it is using the core Load checkpoint node. It means that all checkpoint will be preloaded in memory.

    Details :

    • It will take more VRAM, but it will be faster to switch between checkpoints.
    • It can't give you the currently loaded checkpoint name's.

    Check node number 41 before deciding which one to use.

    41 - 🎲 Random Load checkpoint (Model Selector)

    Description:
    This is another way to select a load checkpoint node randomly.

    pick input

    It will not preload all the checkpoints in memory, so it will be slower to switch between checkpoints.
    But you can use more outputs to decide where to store your results. (model_folder is returning the last folder name of the checkpoint.)
    I always store my checkpoints in a folder with the type of the model like SD1.5, SDXL, etc... So it's a good way for me to recover that information quickly.

    Details :

    • Note that compared to node 40, you can't have separate configuration depending of the selected checkpoint. (For example CLIP Set Last Layer node set at -2 for a specific model, or a separate vae or clip.) Aka : All models are going to share the exact same workflow.

    Check node number 40 before deciding which one to use.
    Node 53 is the loop version of this node.

    NOTE : If you want to load a single checkpoint but want to extract its folder name (To use the checkpoint name as a folder name for example, or with if/else node), you can use my node 41 with only one checkpoint. (It will take one at random, so... always the same one.)

    42 - β™» Loop (Model+Clip+Vae) - aka Checkpoint / Model

    pick input

    Description:
    Loop over all the trios from several checkpoint node.

    43 - πŸ“₯πŸ–ΌπŸ“‚ Load Images from output folder

    Description:
    Quickly select all images from a folder inside the output folder. (Not recursively.)

    pick input

    So... As you can see from the screenshot the images are split based on their resolution.
    It's also not possible to edit dynamically the number of outputs, so I just picked a number : 4.
    The node will separate the images based on their resolution, so with this node you can have 4 different resolutions per folder. (If you have more than that, maybe you should have another folder...)
    To avoid error or crash if you have less than 4 resolutions in a folder, the node will just output white tensors. (white square image.)
    So this node is a little hacky for now, but i can select my different characters in less than a second.
    If you want to know how i personnaly save my images for a specific character, here is part of my workflow (Notice that i personnaly use / for folders because I'm on linux) :
    pick input
    In this example I put "character/" as a string and then combine with "nothing". But it's the same if you do "character" and then combine with "/". (I just like having a / at the end of my folder's name...)

    If you are satisfied with this logic, you can then select all these nodes, right click and Convert to Group Node, you can then have your own customized "save character node" :
    pick input

    Here is another example of the same thing but excluding the save folder node :
    pick input

    ⚠️ If you really want to regroup all the images in one flow, you can use my node 47 Combine images to put them all together.

    44 - πŸ–ΌπŸ‘ˆ Select an Image, Pick

    Description:
    Select an image from a list of images.

    pick input

    Useful in combination with my Load images from folder and preview image nodes.

    You can also of course make a group node, like this one, which is the same as the screenshot above :
    pick input

    45 - πŸ”€ If-Else (input / compare_with)

    Description:
    Complex logic node if/else system.

    if else

    If the input given is equal to the compare_with given in the widget, it will forward send_if_true, otherwise it will forward send_if_false. (If no send_if_false it will return None.)
    You can forward anything, below is an example of forwarding a different size of latent space depending if it's SDXL or not.

    if else

    Here is an example of the node with all outputs displayed with Show text nodes :

    if else

    send_if_false is optional, if not connected, it will be replaced by None.

    if else

    If-Else are chainables, just connect output to send_if_false.
    ⚠️ Always simply test input with compare_with, and connect the desired value to send_if_true. ⚠️
    Here a simple example with 2 If-Else nodes (choose between 3 different resolutions).
    ❗ Notice that the same write text node is connected to both If-Else nodes input :

    if else

    Let's take a similar example but let's use my Write loop text node to display all 3 types once :

    if else

    If you understood the previous examples, here is a complete example that will create 3 images, landscape, portrait and square :

    if else

    Workflow is hidden for simplicity, but is very basic, just connect latent to Ksampler, nothing special.)
    You can also connect the same advanced loop write text node with my save folder node to save the images (landscape/portrait/square) in separate folders, but you do you...

    46 - πŸ–ΌπŸ” Image Details

    Description:
    Display the details of an image. (width, height, has_transparency, orientation, type)
    RGBA is considered as having transparency, RGB is not.
    orientation can be landscape, portrait or square.

    image details

    47 - πŸ–ΌπŸ”— Combine Images

    Description:
    Combine multiple images (A single image or a list of images.)
    If you want to merge several images into a single image, check node 60 or 61.

    There are two types of logic to "combine images". With "all_in_one" enabled, it will combine all the images into one tensor.
    Otherwise it will send the images one by one. (check examples below) :

    This is an example of the "all_in_one" option disabled (Note that there are 2 images, these are NOT side by side, they are combined in a list.) :

    combine images

    But for example, if you want to use my node select an image, pick, you need to enable all_in_one and the images must all have the same resolution.

    combine images

    You can notice that there is no visible difference when you use all_in_one with preview image node. (this is why I added the show text node, note that show text will make it blue, because it's an image/tensor.)

    When you use combine image node, you can actually also send many images at once, it will combine them all.
    Here is an example with Load images from folder node, Image details node and Combine images node. (Of course it can't have all_in_one set to True in this situation because the images have different resolutions) :

    combine images

    Here another simple example taking a few selected images from a folder and combining them (For later processing for example) :

    combine images

    48 - πŸ”€πŸŽ² Text scrambler (πŸ§‘ Character)

    Description:
    Take text as input and scramble (randomize) the text by using the file scrambler/character_scrambler.json in the comfyui custom nodes folder.

    scrambler character

    49 - πŸ“ΉπŸ‘ Video Preview

    Description:
    This node takes a video path as input and displays the video.

    video preview

    50 - πŸ–ΌβžœπŸ“Ή Images to Video path (tmp video)

    Description:
    This node will take a list of images and convert them to a temporary video file.
    ❗ Update 0.50 : You can now send audio to the video. (audio_path OR audio TYPE)

    image to video path

    51 - πŸ“ΉβžœπŸ–Ό Video Path to Images

    Description:
    This node will take a video path as input and convert it to a list of images.

    video path to image

    In the above example, I also take half of the frames by setting frame_interval to 2.
    Note that i had 16 frames, on the top right preview you can see 8 images.

    52 - πŸ”ŠπŸ“Ή Audio Video Sync

    Description:

    This node is an overengineered node that will try to synchronize the duration of an audio file with a video file.
    ❗ Video ideally needs to be a loop, check my ping pong video node if needed. The main goal of this synchronization is to have a clean transition between the end and the beginning of the video. (same frame)
    You can then chain up several video and they will transition smoothly.

    Some details, this node will :

    • If video slightly too long : add silence to the audio file.
    • If video way too long : will slow down the video up to 0.50x the speed + add silence to the audio. (now editable)
    • If audio slightly too long : will speed up video up to 1.5x the speed. (now editable)
    • If video way too long : will speed up video up to 1.5x the speed + add silence to the audio.

    It is good like for example with MuseTalk https://github.com/chaojie/ComfyUI-MuseTalk

    Here is an example of the Audio Video Sync node, notice that it is also convenient to recover the frames per second of the video, and send that to other nodes. (Spaghettis..., deal with it. 😎 If you don't understand it, you can test it.) :

    audio sync video

    ❗ Update 0.50 : audio_duration is now optional, if not connected it will take it from the audio.
    ❗ Update 0.50 : You can now send the video with a list of images OR a video_path, same for audio : AUDIO or audio_path.

    New v0.50 layout, same logic :

    audio sync video

    53 - β™» Loop Load checkpoint (Model Selector)

    Description:
    This is the loop version of node 41. (check there for similar details)
    It will loop over all the selected checkpoints.

    ❗ The big difference with 41 is that checkpoints are preloaded in memory. You can run them all faster all at once.
    It is a good way to test multiple checkpoints quickly.

    loop model selector

    54 - β™» Loop Lora Selector

    Description:
    Loop over all the selected Loras.

    loop lora selector

    Above is an example with Pony and several styles of Lora.

    Below is another example, here with flux, to test if your Lora training was undertrained, overtrained or just right :

    loop lora selector

    55 - 🎲 Random Lora Selector

    Description:
    Just take a single Lora at random from a list of Loras.

    random lora selector

    56 - β™»πŸ“ Loop Sequential (Integer)

    Description:
    This loop works like a normal loop, BUT it is sequential : It will run only once for each workflow run !!!
    The first time it will output the first integer, the second time the second integer, etc...
    When the last is reached, the node will STOP the workflow, preventing anything else to run after it.
    Under the hood it is using a single file counter_integer.txt in the ComfyUI/Bjornulf folder.
    ❗ Do not use more than one node like this one in a workflow, because they will share the same counter_integer.txt file. (unexpected behaviour.) Update 0.57: Now also contains the next counter in the reset button.

    loop sequential integer
    loop sequential integer
    loop sequential integer
    loop sequential integer

    57 - β™»πŸ“ Loop Sequential (input Lines)

    Description:
    This loop works like a normal loop, BUT it is sequential : It will run only once for each workflow run !!!
    The first time it will output the first line, the second time the second line, etc...
    You also have control of the line with +1 / -1 buttons.
    When the last is reached, the node will STOP the workflow, preventing anything else to run after it.
    Under the hood it is using the file counter_lines.txt in the ComfyUI/Bjornulf folder.

    Here is an example of usage with my TTS node : when I have a list of sentences to process, if i don't like a version, I can just click on the -1 button, tick "overwrite" on TTS node and it will generate the same sentence again, repeat until good.
    ❗ Do not use more than one node like this one in a workflow, because they will share the same counter_lines.txt file. (unexpected behaviour.)

    loop sequential line

    Update 0.57: Now also contains the next counter in the reset button.
    If you want to be able to predict the next line, you can use node 68, to Add line numbers.

    58 - πŸ“ΉπŸ”— Concat Videos

    Description:
    Take two videos and concatenate them. (One after the other in the same video.)
    Convert a video, can use FFMPEG_CONFIG_JSON. (From node 76 / 77)

    concat video

    59 - πŸ“ΉπŸ”Š Combine Video + Audio

    Description:
    Simply combine video and audio together.
    Video : Use list of images or video path.
    Audio : Use audio path or audio type.

    combine video audio

    60 - πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Horizontally)

    Description:
    Merge images or videos horizontally.

    merge images

    Here is one possible example for videos with node 60 and 61 :

    merge videos

    61 - πŸ–ΌπŸ–Ό Merge Images/Videos πŸ“ΉπŸ“Ή (Vertically)

    Description:
    Merge images or videos vertically.

    merge images

    Here is one possible example for videos with node 60 and 61 :

    merge videos

    62 - πŸ¦™πŸ‘ Ollama Vision

    Description:
    Take an image as input and will describe the image. Uses moondream by default, but can select anything with node 63.

    ollama vision

    63 - πŸ¦™ Ollama Configuration βš™

    Description:
    Use custom configurations for Ollama Talk and Vision.
    You can change the ollama Url and the model used.
    Some vision models can also do text to a certain extent.
    Example of a Ollama Vision Node and Ollama Talk Node using the same Ollama Configuration Node :

    ollama config

    64 - πŸ¦™ Ollama Job Selector πŸ’Ό

    Description:
    Select a personnality for your Ollama Talk Node, set it to None for just chat.
    If you want to write your own, just set it to None and write your prompt as prefix.

    ollama job

    65 - πŸ¦™ Ollama Persona Selector πŸ§‘

    Description:
    Select a personnality for your Ollama Talk Node.
    If you want to write your own, just set it to None and write your prompt as prefix.
    Below, an example of a crazy scientist explaining gravity. (Notice that the LLM was smart enough to understand the typo) :

    ollama persona

    66 - πŸ”ŠβžœπŸ“ STT - Speech to Text

    Description:
    Use faster-whisper to transform an AUDIO type or audio_path into text. (Autodetect language)

    stt
    stt

    67 - πŸ“βžœβœ¨ Text to Anything

    Description:
    Sometimes you want to force a node to accept a STRING.
    You can't do that for example if the node is taking a LIST as input.
    This node can be used in the middle to force a STRING to be used anyway.
    Below is an example of that with my TTS node.

    text to anything

    68 - βœ¨βžœπŸ“ Anything to Text

    Description:
    Sometimes you want to force something to be a STRING.
    Most outputs are indeed text, even though they might be unusable.
    This node ignore this fact and simply convert the input to a simple STRING.

    69 - πŸ”’ Add line numbers

    Description:

    This node will just add line numbers to text.
    Useful when you want to use node 57 that will loop over input lines. (You can read/predict the next line.)

    add line numbers

    70 - πŸ“ Resize Image Percentage

    Description:

    Resize an image by percentage.

    resize percentage

    71 - πŸ‘ Show (Int)

    Description:
    Basic node, show an INT. (You can simply drag any INT node and it will be recommended.)

    show int

    72 - πŸ‘ Show (Float)

    Description:
    Basic node, show a FLOAT. (You can simply drag any FLOAT node and it will be recommended.)

    show float

    73 - πŸ‘ Show (String/Text)

    Description:
    Basic node, show a STRING. (You can simply drag any STRING node and it will be recommended.)

    show string
    show string

    74 - πŸ‘ Show (JSON)

    Description:
    This node will take a STRING and format it as a readable JSON. (and pink)

    show json
    show json

    75 - πŸ“βžœπŸ“ Replace text

    Description:
    Replace text with another text, allow regex and more options, check examples below :

    text replace
    text replace
    text replace

    76 - βš™πŸ“Ή FFmpeg Configuration πŸ“Ήβš™

    Description:
    Create a FFMPEG_CONFIG_JSON, it will contains a JSON that can be used by other nodes :

    • Convert video
    • Concat videos
    • Concat video from list

    text replace

    77 - πŸ“ΉπŸ” Video details βš™

    Description:
    Extract details from a video_path.
    You can use the all-in-one FFMPEG_CONFIG_JSON with other nodes or just use the other variables as your want.

    video details

    78 - πŸ“ΉβžœπŸ“Ή Convert Video

    Description:
    Convert a video, can use FFMPEG_CONFIG_JSON.

    convert video

    79 - πŸ“ΉπŸ”— Concat Videos from list

    Description:
    Take a list of videos (one per line) and concatenate them. (One after the other in the same video.)
    Can use FFMPEG_CONFIG_JSON. (From node 76 / 77)

    concat video list

    80 - 🩷 Empty Latent Selector

    Description:
    Tired of setting up latent space manually ?
    Select one from my custom list of formats.
    Just connect that to your KSampler.

    empty_latent

    81 - πŸ”₯πŸ“ Text Generator πŸ“πŸ”₯

    Description:
    Main node to generate content, doesn't really do much by itself, just camera angle and multicharacter action. (For example : ... eat picnic, view from above.)
    BUT, you can connect others Text Generator Nodes to it.

    ⚠️ Warning for "Text Generator" : This node is JUST writing text, text is then interpreted by a checkpoint (SD1.5, SDXL, Flux...) to generate an image.
    Some models are very bad at doing some things, so DON'T EXPECT for everything you do to work properly all the time with every checkpoints or loras. (This node was made with FLUX in mind.)

    Below is a Tutorial on how to use all my Text Generator nodes. I did that small tutorial in 8 steps:

    Step 1 : You use the main Text Generator node, it will write general details about the image (here camera_angle and shot_type) - For now I just combine the text to a simple "write text" that will send swamp monster :
    textgen

    Step 2 : Add a specific style to your image :
    textgen_style

    Step 3 : Add scene/background to your image :
    textgen_scene

    Step 4 : Add a character to the scene using a character node, instead of the Write text Node.
    I will remove the "swamp monster" from the "write text node" and use my Character Node instead, I will use it to create an agressive dragon with lighting powers :
    textgen_char

    Step 5 : Character nodes (Male/Female and creatures) can contain more than one character. (But they will share the same characteristics)
    Below I removed the dragon and I created 2 "Character male" fighting by using the multi_char_action from the main node. (You can set it to CUSTOM and write your own action too.)
    textgen_2chars

    Step 5 : Let's try to add a location for the character, I want to put it on the left of the image. Here is a failure with the SDXL model I have been using all along :
    textgen_charposition_FAIL_sdxl

    Step 6 : Switch to FLUX to test the location_on_image feature (which is working) :
    textgen_location_on_image_flux

    Step 7 : Switch to API black Forest Lab with FLUX Ultra, using my API custom node 109.
    If you want several characters with different characteristics (like location_on_image or whatever), you can chain several Character Nodes together by connecting them to each other.
    You can see below that I asked for 2 tiny dragons on the left and a zombie on the right.
    textgen_Complex_ULTRA

    Step 8 : And to end this tutorial, I will disable the Zombie, I will add an outfit (here a floral armor), I will also add a pose node for the character and also connect this pose node to an object node. (They will together make the character hold a book and put his hand on chin)
    textgen_final

    82 - πŸ‘©β€πŸ¦°πŸ“ Text Generator (Character Female)

    Description:
    Generate text related to female characters.
    Need to be connected to "Text Generator" main node.

    ⚠️ For "Text Generator" tutorial see node 81.

    83 - πŸ‘¨β€πŸ¦°πŸ“ Text Generator (Character Male)

    Description:
    Generate text related to male characters.

    ⚠️ For "Text Generator" tutorial see node 81.

    84 - πŸ‘ΎπŸ“ Text Generator (Character Creature)

    Description:
    Generate text related to creatures. (characters)

    ⚠️ For "Text Generator" tutorial see node 81.

    85 - πŸ’ƒπŸ•ΊπŸ“ Text Generator (Character Pose)

    Description:
    Generate text related to the pose of characters.

    ⚠️ For "Text Generator" tutorial see node 81.

    86 - πŸ”§πŸ‘¨β€πŸ”§πŸ“ Text Generator (Object for Character)

    Description:
    Generate text related to an object connected to a pose, that is connected to a character.

    ⚠️ For "Text Generator" tutorial see node 81.

    87 - πŸŒ„πŸ“ Text Generator (Scene)

    Description:
    Generate text related to a specific scene, connects directly to the main text generator.

    ⚠️ For "Text Generator" tutorial see node 81.

    88 - πŸŽ¨πŸ“ Text Generator (Style)

    Description:
    Generate text related to a specific style, connects directly to the main text generator.

    ⚠️ For "Text Generator" tutorial see node 81.

    89 - πŸ‘— Text Generator (Outfit Female)

    Description:
    Generate text related to a specific female outfit.

    ⚠️ For "Text Generator" tutorial see node 81.

    90 - πŸ‘š Text Generator (Outfit Male)

    Description:
    Generate text related to a specific male outfit.

    ⚠️ For "Text Generator" tutorial see node 81.

    91 - β™»πŸ”₯πŸ“ List Looper (Text Generator)

    Description:
    Loop made to loop over elements for the main node text generator.

    All the List Looper nodes have the same logic, you should be able to use them all the same way.
    Here is an example with node 92 (list looper scenes), looping over all the different weather_condition :

    listlooper_USE

    ⚠️ Note, if you want to Loop over the elements One by One, Not all-in one, DO NOT use this list looper nodes !!
    You can just convert the element you want as input and double click to create a new node that you can set to "increment".

    Example, here you can see that the value was "incremented", aka changed to the next from the list, the next run will then have the next value from the list (and so on) :
    listlooper_notUSE

    92 - β™»πŸŒ„πŸ“ List Looper (Text Generator Scenes)

    Description:
    Loop made to loop over elements for the node scenes.

    ⚠️ For "List Looper" tutorial see node 91.

    93 - β™»πŸŽ¨πŸ“ List Looper (Text Generator Styles)

    Description:
    Loop made to loop over elements for the node style.

    ⚠️ For "List Looper" tutorial see node 91.

    94 - β™»πŸ’ƒπŸ•ΊπŸ“ List Looper (Text Generator Poses)

    Description:
    Loop made to loop over elements for the node poses.

    ⚠️ For "List Looper" tutorial see node 91.

    95 - β™»πŸ‘¨β€πŸ¦°πŸ‘©β€πŸ¦°πŸ‘Ύ List Looper (Text Generator Characters)

    Description:
    Loop made to loop over elements for the node charceter (male/female/creature).

    ⚠️ For "List Looper" tutorial see node 91.

    96 - β™»πŸ‘š List Looper (Text Generator Outfits Male)

    Description:
    Loop made to loop over elements for the node for male outfits.

    ⚠️ For "List Looper" tutorial see node 91.

    97 - β™»πŸ‘— List Looper (Text Generator Outfits Female)

    Description:
    Loop made to loop over elements for the node for female outfits.

    ⚠️ For "List Looper" tutorial see node 91.

    98 - πŸ“₯ Load checkpoint SD1.5 (+Download from CivitAi)

    Description:
    This is the same as a basic "Load checkpoint" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the sd1.5 version, it will download the models in : ComfyUI/models/checkpoints/Bjornulf_civitAI/sd1.5
    After downloading, you can keep using this node as is to load your checkpoint, or use the downloaded model from a basic "Load checkpoint" node.

    civitai_load_sd15

    99 - πŸ“₯ Load checkpoint SDXL (+Download from CivitAi)

    Description:
    This is the same as a basic "Load checkpoint" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the sdxl_1.0 version, it will download the models in : ComfyUI/models/checkpoints/Bjornulf_civitAI/sdxl_1.0
    After downloading, you can keep using this node as is to load your checkpoint, or use the downloaded model from a basic "Load checkpoint" node.

    civitai_load_sdxl

    100 - πŸ“₯ Load checkpoint Pony (+Download from CivitAi)

    Description:
    This is the same as a basic "Load checkpoint" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the pony version, it will download the models in : ComfyUI/models/checkpoints/Bjornulf_civitAI/pony
    After downloading, you can keep using this node as is to load your checkpoint, or use the downloaded model from a basic "Load checkpoint" node.

    civitai_load_pony

    101 - πŸ“₯ Load checkpoint FLUX Dev (+Download from CivitAi)

    Description:
    This is the same as a basic "Load checkpoint" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the flux_d version, it will download the models in : ComfyUI/models/checkpoints/Bjornulf_civitAI/flux_d
    After downloading, you can keep using this node as is to load your checkpoint, or use the downloaded model from a basic "Load checkpoint" node.

    🚧 Work in progress, need to manually clean up list, diffusers, etc.. ? 🚧

    102 - πŸ“₯ Load checkpoint FLUX Schnell (+Download from CivitAi)

    Description:
    This is the same as a basic "Load checkpoint" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the flux_s version, it will download the models in : ComfyUI/models/checkpoints/Bjornulf_civitAI/flux_s
    After downloading, you can keep using this node as is to load your checkpoint, or use the downloaded model from a basic "Load checkpoint" node.

    🚧 Work in progress, need to manually clean up list, diffusers, etc.. ? 🚧

    103 - πŸ“₯πŸ‘‘ Load Lora SD1.5 (+Download from CivitAi)

    Description:
    This is the same as a basic "Load lora" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the sd_1.5 version, it will download the lora in : ComfyUI/models/loras/Bjornulf_civitAI/sd_1.5
    After downloading, you can keep using this node as is to load your lora, or use the downloaded lora from a basic "Load lora" node.

    Below is an example with Lora "Colorize" :

    civitai_lora_sd15

    104 - πŸ“₯πŸ‘‘ Load Lora SDXL (+Download from CivitAi)

    Description:
    This is the same as a basic "Load lora" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the sdxl_1.0 version, it will download the lora in : ComfyUI/models/loras/Bjornulf_civitAI/sdxl_1.0
    After downloading, you can keep using this node as is to load your lora, or use the downloaded lora from a basic "Load lora" node.

    Below is an example with Lora "Better faces" :

    civitai_lora_sdxl

    105 - πŸ“₯πŸ‘‘ Load Lora Pony (+Download from CivitAi)

    Description:
    This is the same as a basic "Load lora" node, but the list is from civitai (not your local folder).
    It will also download the file from civitai if you don't have it on your computer yet. (You need an api token from your account. - Find yours on civitai.com settings. -)
    This is the pony version, it will download the lora in : ComfyUI/models/loras/Bjornulf_civitAI/pony
    After downloading, you can keep using this node as is to load your lora, or use the downloaded lora from a basic "Load lora" node.

    civitai_lora_pony

    106 - ☁🎨 API Image Generator (FalAI) 🎨☁

    Description:
    Generate images with only a token.
    This is the fal.ai version and will save the image in ComfyUI/output/API/CivitAI/

    api falai

    107 - ☁🎨 API Image Generator (CivitAI) 🎨☁

    Description:
    Generate images with only a token.
    This is the civit.ai version and will save the image in ComfyUI/output/API/CivitAI/
    ⚠️ Warning : Civitai isn't the best reliable API, sometimes it doesn't answer, or take long time to answer, some urn don't answer as well as others, etc...
    Use it at your own risks, I do not recommend running anything "costly" using their API, like Flux Ultra, etc... (Use the website instead with blue buzz)
    API requests (like from this node) are using yellow buzz.

    api civitai

    108 - β˜πŸ‘‘ Add Lora (API ONLY - CivitAI) πŸ‘‘β˜

    Description:
    Use lora with the API, below is an example to see clearly with the same seed the different with/without/lora.

    api civitai lora

    109 - ☁🎨 API Image Generator (Black Forest Labs - Flux) 🎨☁

    Description:
    Generate an image with the Black Forest Labs API. (flux)

    api black forest

    110 - ☁🎨 API Image Generator (Stability - Stable Diffusion) 🎨☁

    Description:
    Generate an image with the Stability API. (sd3)

    api stability