ComfyUI Extension: ComfyUI-JNK-Tiny-Nodes

Authored by Aljnk

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A collection of useful custom nodes for ComfyUI - image processing, text manipulation, and workflow automation.

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    README

    ComfyUI-JNK-Tiny-Nodes

    A collection of useful custom nodes for ComfyUI - image processing, text manipulation, and workflow automation.

    📦 Installation

    Method 1: Git Clone (Recommended)

    cd ComfyUI/custom_nodes/
git clone https://github.com/Aljnk/ComfyUI-JNK-Tiny-Nodes.git

    Method 2: Manual Download

    1. Download the repository as ZIP
    2. Extract to ComfyUI/custom_nodes/ComfyUI-JNK-Tiny-Nodes/

    🔧 Dependencies

    # Required Python packages
pip install opencv-python
pip install pygame

    🔄 Changelog

    v1.0.0

    • Initial release
    • 25+ custom nodes

    📋 Nodes

    Models

    • Load UNet Model with Name - Return UNet model and model name. The name can be used when saving files to understand which model was used in creation.
    • Load Checkpoint Model with Name - Return components of a checkpoint model and its name. The name can be used when saving files to understand which model was used in creation.
    • Load LoRA with Name - Return LoRA model and LoRA name. The name can be used when saving files to understand which LoRA was used in creation.
    <div align="center"><img src="images/models.jpg" alt="Model Nodes" width="830" /></div>

    Video

    • Save Frame - Save individual frames with sequential numbering. Useful for extracting specific frames from video for processing.
    • Save Video Images - Batch save multiple images as numbered sequence. Allows decomposing video into images, modifying some frames, then reassembling into video.
    <div align="center"><img src="images/videos.jpg" alt="Video Nodes" width="450" /></div>

    Image

    • Save Static Image - Save images with quality control, metadata, and an option to skip existing files. Allows saving images using filesystem paths.
    • Load Image if Exist - Load images with existence check, returning a boolean status. Loads image by filesystem path and returns boolean to check if image was loaded.
    • Image Filter Loader - Batch load images from folders with filtering + returns number of found images and their paths. Loads images from a folder whose names contain the filter keyword.
    • Stroke RGBA Image - Add customizable stroke effects to RGBA images or by mask. Preserves alpha channel after stroking.
    • Create RGBA Image - Generate transparent or colored RGBA image. Useful for compositing images from different layers.
    • Add Layer Overlay - Composite layers with positioning, rotation and opacity control.
    • Get One Alpha Layer - Extract the largest alpha region from images.
    • Get All Alpha Layers - Extract all significant alpha regions while preserving smaller details.
    <div align="center"><img src="images/images.jpg" alt="Image Nodes" width="830" /></div>

    Upscale

    • Topaz Photo Upscaler - Integrate with Topaz Photo AI for professional upscaling with autopilot settings. Compression parameter controls PNG compression after upscaling. tpai_exe specifies path to folder containing tpai.exe file. For custom settings, configure AutoPilot mode in Topaz Photo AI preferences.
    <div align="center"><img src="images/upscalers.jpg" alt="Upscale Nodes" width="370" /></div>

    Text

    • Get Text From List by Index - Extract specific text items from lists or string lists by index position.
    • Text Saver - Save text to file by path. Useful for saving translations or configuration sets.
    • Get Substring - Extract substrings with start position, length and reverse options. Useful for trimming long model names when saving results.
    • Text to Key - Convert text to key. Cuts beginning and end of text to create keys from these parts.
    • Text to MD5 - Generate MD5 hashes from text for unique identifiers.
    • Join Strings - Concatenate multiple strings with custom delimiters. Text can be written directly in the node.
    • Get Timestamp - Generate current timestamp strings for file naming.
    <div align="center"><img src="images/texts.jpg" alt="Text Nodes" width="830" /></div>

    Logic

    • Switch Integer - Convert ON/OFF states to 1/0 integers for conditional logic.
    • Switch Index - Convert ON/OFF states to 2/1 indices for node switching.
    • Get Models - Get model list by search key. In test mode, uses next model from list each run (very convenient for model testing). In work mode, uses only model from model_name or first in list.
    <div align="center"><img src="images/logic.jpg" alt="Logic Nodes" width="440" /></div>

    System

    • Bridge All - Simple bridge with main parameters.
    • Queue Stop - Stop processing with optional sound alerts and queue clearing.
    • Create Folder - Create directory by path programmatically.
    <div align="center"><img src="images/system.jpg" alt="System Nodes" width="750" /></div>

    📄 License

    This project is licensed under the MIT License - see the LICENSE file for details.

    📞 Support

    ☕ Support the Author

    If you find these nodes helpful, consider buying me a coffee: