CRT-Nodes for ComfyUI

Custom node collection for ComfyUI covering FX/post, loaders/savers, audio, and workflow utilities.

Note: Some nodes require optional dependencies such as pedalboard, ultralytics, color-matcher, and sageattention.

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Node List

Audio Processing

Tools for manipulating audio, visualizing waveforms, and syncing audio to frame counts.

Sorted by each node's CATEGORY in the Python scripts.

Load

| Node Name | Description | | :--- | :--- | | Tube Compressor | Audio compressor with threshold/ratio/attack/release and musical shaping controls. | | Parametric EQ | Multi-band EQ with standard filter shapes for corrective and creative tone control. | | Preview Audio | In-UI audio preview with waveform visualization and level metering. | | Frame Count (Audio or Manual) | Computes frame count from audio length + FPS, or accepts manual values. | | Audio Frame Adjuster | Utility for adjusting frame alignment from audio-driven timing. | | Mono to Stereo Converter | Converts mono audio streams to stereo. | | Audio Loader Crawl | Recursively scans folders and selects an audio file by seed/index logic. | | Image Loader Crawl | Recursively scans folders and selects an image by seed/index logic. | | Load Image Base64 | Decodes Base64 image data into image output for pipeline use. | | Load Image Resize | Loads an image and immediately resizes to target dimensions. | | Load Last Image | Loads the most recently modified image from a target folder. | | Load Last Latent | Loads the most recently modified latent (.safetensors) file. | | Load Last Video | Loads the most recently modified video from a target folder. | | Text Loader Crawl | Recursively scans folders and selects a text file by seed/index logic. | | Text Loader Crawl Batch | Batch text loader that returns multiple prompts/strings. | | Video Loader Crawl | Recursively scans folders and selects a video by seed/index logic. |

Visual FX & Post-Processing

Image grading, cleanup, stylization, and effect nodes.

Save

| Node Name | Description | | :--- | :--- | | Post-Process Suite | Main all-in-one post node for grading, lens effects, sharpening, grain, and more. | | Save Audio With Path | Saves audio output to explicit paths. | | Save Image With Path | Saves images to explicit folder/subfolder paths. | | Save Latent With Path | Saves latent tensors as .safetensors files to explicit paths. | | Save Text With Path | Saves text output to explicit paths. | | Save Video With Path | Saves videos to explicit folder/subfolder paths. |

Text

| Node Name | Description | | :--- | :--- | | Add Settings and Prompt | Renders prompt/settings overlays onto output images. | | Advanced String Replace | Multi-rule find/replace utility for prompts and text. | | AutopromptProcessor | Prompt preprocessor for replacement/prefix/suffix style operations. | | Remove Lines | Removes selected lines from text blocks. | | Remove Trailing Comma | Cleans trailing commas from prompt/text strings. | | String Batcher | Combines multiple string inputs into a batched/merged output. | | String Line Counter | Counts line totals in incoming text. | | String Splitter | Splits large text into separate outputs by line or delimiter rules. | | Text Box line spot | Picks/extracts a specific line from multi-line text. |

Utils

| Node Name | Description | | :--- | :--- | | Boolean Transform | Converts numeric/string values to boolean outputs. | | Mask Empty Float | Outputs fallback float behavior based on mask emptiness. | | Mask Pass or Placeholder | Passes a valid mask or emits a placeholder mask. | | Resolution | Calculates output resolution from ratio and size targets. | | Sampler & Scheduler Crawler | Iterates sampler/scheduler combos for comparison/testing. | | Sampler & Scheduler Selector | Manual selector for sampler/scheduler combinations. | | Video Duration Calculator | Calculates duration from FPS and frame counts. | | Fancy Note | Graph note/sticky node for readable workflow annotation. |

FX

| Node Name | Description | | :--- | :--- | | Advanced Bloom FX | High-quality bloom with threshold and radius/intensity controls. | | Arcane Bloom FX | Stylized bloom for glowing, dreamy highlights. | | Clarity FX | Local contrast/detail enhancement without heavy global exposure shifts. | | Colourfulness FX | Adaptive color intensity enhancement with clipping-safe behavior. | | Color Isolation FX | Isolates selected hues while muting others. | | Contour FX | Edge extraction/line-art style contour pass. | | Film Grain FX | Procedural film grain with controllable texture strength. | | Lens Distort FX | Barrel/pincushion style lens distortion simulation. | | Lens FX | Combined lens treatment node (aberration/vignette style workflows). | | Post-Process Suite | Main all-in-one post node for grading, lens effects, sharpening, grain, and more. | | Smart DeNoise FX | Edge-aware denoise for cleanup with detail retention. | | Technicolor 2 FX | Vintage two-strip Technicolor style color look. | | Chroma Key Overlay | Basic chroma key/spill suppression and compositing helper. | | Batch Brightness Curve (U-Shape) | Applies controlled U-shaped brightness remapping over image batches. | | Flux2Klein Seamless Tile | Seamless tiling utility for texture generation workflows. | | Image Tile Checker | Quick tile seam checking for pattern/texture validation. |

FLUX / WAN / Sampling

Sampling, LoRA, and enhancement tools for FLUX and WAN pipelines.

LoRA

| Node Name | Description | | :--- | :--- | | Flux LoRA Blocks Patcher | Fine-grained block-level LoRA strength patching for FLUX models. | | Magic LoRA Loader | Flexible multi-LoRA loader with optional wet/cap and block-weight controls. | | Wan Video Multi-LoRA Select | Multi-LoRA selector/stack manager for WAN video workflows. |

Sampling

| Node Name | Description | | :--- | :--- | | CLIP Text Encode FLUX Merged | Prompt encoder for FLUX workflows with merged encoding behavior. | | Flux.1 Cnet Face Enhancement with Injection | Face enhancement pipeline with detection, crop, and injection-based restore steps. | | Face Enhancement with Injection | Face enhancement pipeline tuned for injection workflows. | | KSampler Batch | Batch execution wrapper for repeated KSampler runs. | | Latent Noise Injection Sampler | Injects controlled latent noise during sampling for texture/detail shaping. | | Pony Upscale Sampler with Injection & Tiling | Pony-focused upscaler sampler with injection and tile support. | | WAN 2.2 Batch Sampler | WAN video batch sampler for staged generation workflows. | | WAN 2.2 LoRA Compare Sampler | Side-by-side WAN LoRA comparison helper. | | Flux Controlnet Sampler | FLUX sampler variant with integrated ControlNet handling. | | Flux Controlnet Sampler with Injection | ControlNet FLUX sampler with latent/noise injection controls. | | Upscale using model adv | Model-based upscaler with advanced memory/tiling options. |

Loaders & Savers

Directory crawl loaders and explicit path-based save nodes.

Image

| Node Name | Description | | :--- | :--- | | Audio Loader Crawl | Recursively scans folders and selects an audio file by seed/index logic. | | Image Loader Crawl | Recursively scans folders and selects an image by seed/index logic. | | Video Loader Crawl | Recursively scans folders and selects a video by seed/index logic. | | Text Loader Crawl | Recursively scans folders and selects a text file by seed/index logic. | | Text Loader Crawl Batch | Batch text loader that returns multiple prompts/strings. | | Load Last Image | Loads the most recently modified image from a target folder. | | Load Last Video | Loads the most recently modified video from a target folder. | | Load Last Latent | Loads the most recently modified latent (.safetensors) file. | | Load Image Resize | Loads an image and immediately resizes to target dimensions. | | Load Image Base64 | Decodes Base64 image data into image output for pipeline use. | | Save Image Base64 | Encodes image output to a Base64 string without writing to disk. | | Save Image With Path | Saves images to explicit folder/subfolder paths. | | Save Video With Path | Saves videos to explicit folder/subfolder paths. | | Save Audio With Path | Saves audio output to explicit paths. | | Save Text With Path | Saves text output to explicit paths. | | Save Latent With Path | Saves latent tensors as .safetensors files to explicit paths. | | Batch Brightness Curve (U-Shape) | Applies controlled U-shaped brightness remapping over image batches. | | Chroma Key Overlay | Basic chroma key/spill suppression and compositing helper. | | Depth Anything Tensorrt Format | Formats depth outputs for TensorRT-compatible depth workflows. | | Image Dimensions From Megapixels | Computes dimensions from megapixel targets. | | Image Dimensions From MP alt | Alternate megapixel-to-dimension calculator variant. | | Image Scale Range From MP | Derives scaling ranges from megapixel constraints. |

Logic & Utilities

Workflow helpers for strings, toggles, dimensions, scheduling, and graph organization.

Conditioning

| Node Name | Description | | :--- | :--- | | String Batcher | Combines multiple string inputs into a batched/merged output. | | String Splitter | Splits large text into separate outputs by line or delimiter rules. | | String Line Counter | Counts line totals in incoming text. | | Text Box line spot | Picks/extracts a specific line from multi-line text. | | Remove Lines | Removes selected lines from text blocks. | | Remove Trailing Comma | Cleans trailing commas from prompt/text strings. | | Advanced String Replace | Multi-rule find/replace utility for prompts and text. | | AutopromptProcessor | Prompt preprocessor for replacement/prefix/suffix style operations. | | CLIP Text Encode FLUX Merged | Prompt encoder for FLUX workflows with merged encoding behavior. | | Dynamic Prompt Scheduler | Coordinates prompt changes over batches or frame sequences. | | File Batch Prompt Scheduler | Builds prompt schedules from text file batches. | | Boolean Transform | Converts numeric/string values to boolean outputs. | | Boolean Invert | Inverts boolean values. | | Enable Latent | Gate node that passes/blocks latent flow by boolean state. | | Mask Empty Float | Outputs fallback float behavior based on mask emptiness. | | Mask Pass or Placeholder | Passes a valid mask or emits a placeholder mask. | | Strength to Steps | Converts denoise strength percentages to scheduler step ranges. | | Sampler & Scheduler Selector | Manual selector for sampler/scheduler combinations. | | Sampler & Scheduler Crawler | Iterates sampler/scheduler combos for comparison/testing. | | Smart ControlNet Apply | Applies ControlNet with bypass logic when disabled/zeroed. | | Smart Preprocessor | Preprocessor wrapper with smart passthrough behavior. | | Smart Style Model Apply DUAL | Dual-input style application helper with internal caching behavior. | | Add Settings and Prompt | Renders prompt/settings overlays onto output images. |

Video

| Node Name | Description | | :--- | :--- | | Get First & Last Frame | Extracts boundary frames from an image batch. | | Seamless Loop Blender | Blends first/last frames for seamless loop generation. | | Percentage Crop Calculator | Crop planning via percentage coordinates rather than absolute pixels. | | Quantize and Crop Image | Crops/resizes to quantized bucket-friendly dimensions. | | Resolution | Calculates output resolution from ratio and size targets. | | Image Dimensions From Megapixels | Computes dimensions from megapixel targets. | | Image Dimensions From MP alt | Alternate megapixel-to-dimension calculator variant. | | Image Scale Range From MP | Derives scaling ranges from megapixel constraints. | | Video Duration Calculator | Calculates duration from FPS and frame counts. | | Depth Anything Tensorrt Format | Formats depth outputs for TensorRT-compatible depth workflows. |

Audio

| Node Name | Description | | :--- | :--- | | Audio Frame Adjuster | Utility for adjusting frame alignment from audio-driven timing. | | Frame Count (Audio or Manual) | Computes frame count from audio length + FPS, or accepts manual values. | | Mono to Stereo Converter | Converts mono audio streams to stereo. | | Parametric EQ | Multi-band EQ with standard filter shapes for corrective and creative tone control. | | Preview Audio | In-UI audio preview with waveform visualization and level metering. | | Tube Compressor | Audio compressor with threshold/ratio/attack/release and musical shaping controls. |

Latent

| Node Name | Description | | :--- | :--- | | Enable Latent | Gate node that passes/blocks latent flow by boolean state. | | Reference Latent Batch | Loads/manages latent reference batches for iterative workflows. |

Logic

| Node Name | Description | | :--- | :--- | | Any Trigger | Generic trigger/event pass-through utility node. | | Fancy Note | Graph note/sticky node for readable workflow annotation. | | Fancy Timer Node | Displays execution timing information in workflow runs. | | K | Compact knob-style float control utility node. | | T | Compact toggle-style boolean control utility node. | | Boolean Invert | Inverts boolean values. | | Strength to Steps | Converts denoise strength percentages to scheduler step ranges. |

Flux2

| Node Name | Description | | :--- | :--- | | Flux2Klein Seamless Tile | Seamless tiling utility for texture generation workflows. | | Tiny FLUX.2 VAE Loader | Loads FLUX.2 Tiny AutoEncoder weights from models/vae_approx/FLUX.2-Tiny-AutoEncoder/. | | Tiny FLUX.2 VAE Encode | Encodes IMAGE to FLUX.2-compatible latent format with fast Tiny VAE approximation. | | Tiny FLUX.2 VAE Decode | Decodes FLUX.2-compatible latents back to IMAGE with fast Tiny VAE approximation. |