ComfyUI Extension: ComfyUI-Video-Workbench

Authored by Verolelb

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ComfyUI custom node that acts as a mini video editing studio, automatically assembling multiple video clips from a folder with intelligent resolution resizing, aspect ratio handling, and frame rate management.

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    README

    🎬 ComfyUI Auto-Edit Workbench

    A powerful Custom Node for ComfyUI that acts as a mini video editing studio. It automatically assembles (concatenates) multiple video clips from a folder into a single sequence, handling resolution resizing, aspect ratios, and frame rates intelligently.

    ✨ Key Features

    • Batch Assembly: Loads all video files from a specific folder automatically.
    • 3 Resize Modes:
      • Crop (Fill Screen): Fills the screen, cropping edges if necessary (perfect for mixing vertical/horizontal footage).
      • Fit (Black Bars): Adds black borders (letterboxing) so the entire video is visible.
      • Stretch: Distorts the video to fit the target resolution perfectly.
    • Smart Strategies:
      • Resolution: Auto-detect from the First Video, Smallest, Largest, or use a Custom size.
      • FPS: Auto-detect from First Video, Lowest, Highest, or Custom.
    • Audio Support: Concatenates audio tracks seamlessly.
    • Safety Limits: limit_duration_sec parameter to trim the output (great for testing without Out-Of-Memory errors).

    📦 Installation

    Method 1: ComfyUI Manager (Recommended)

    1. Install ComfyUI Manager.
    2. Click "Install via Git URL".
    3. Paste this repository URL: https://github.com/Verolelb/ComfyUI-Video-Workbench.

    Method 2: Manual Installation

    1. Navigate to your ComfyUI/custom_nodes/ directory.
    2. Clone this repository: 
      git clone https://github.com/Verolelb/ComfyUI-Video-Workbench.git
    3. Open a terminal in this folder and install the requirement: 
      pip install -r requirements.txt
      (This node relies on moviepy and numpy).

    🛠️ How to use

    1. Inputs

    • directory_path: Absolute path to your video folder (e.g., C:/Users/You/Desktop/MyClips).
    • sort_strategy: Order of clips (Alphabetical, Date, Random).
    • resize_mode:
      • Use Crop for immersive, full-screen montages (e.g., Shorts/Reels).
      • Use Fit to preserve all details with black bars.
    • resolution_strategy: Keep it on "First Video" to let the first clip dictate the format of the whole timeline.
    • fps_strategy: Keep on "First Video" or force a Custom value (e.g., 24, 30, 60).

    2. Outputs

    1. IMAGE: The assembled video stream.
    2. AUDIO: The combined audio track.
    3. FLOAT (fps): The final frame rate (useful to connect to the "frame_rate" input of saving nodes).

    3. Recommended Workflow for Saving

    To save the video with audio, it is highly recommended to use the Video Combine node from the ComfyUI-VideoHelperSuite.

    • Connect AutoEditWorkbench IMAGE -> Video Combine images.
    • Connect AutoEditWorkbench AUDIO -> Video Combine audio.
    • Connect AutoEditWorkbench FPS -> Video Combine frame_rate (Convert widget to input).
    • Set format to video/h264-mp4.

    ❤️ Credits

    Created by Verolelb. Powered by MoviePy.