ComfyUI Extension: ComfyUI Fast Preview

Authored by AabhasTech

Created

Updated

1 stars

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

A lightweight node to compress and preview images using the temp directory, displaying file sizes on the node UI.

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Custom Nodes (2)

README

ComfyUI Fast Preview

A lightweight, highly optimized custom node for ComfyUI that compresses and previews images directly from the volatile /temp directory. This node minimizes payload size for downstream integrations (like Flow Worker APIs) while displaying the image file size in KB/MB directly on the ComfyUI node interface.

Features

  • Fast Conversion: Prioritizes conversion speed (e.g., WebP method=2).
  • Supports Multiple Formats: WEBP, JPEG, and PNG.
  • Quality Control: Integer slider from 1 to 100.
  • No Clutter: Saves entirely to ComfyUI's temporary folder, preventing disk bloat. Behaves exactly like the core Preview Image node.
  • On-Node File Size: Dynamically injects a UI text display on the node to show the resulting file size (KB/MB).

Installation

Via ComfyUI Manager (Coming Soon)

Search for ComfyUI Fast Preview in the ComfyUI Manager and click Install.

Manual Installation

  1. Navigate to your ComfyUI custom_nodes directory.
  2. Clone this repository:
git clone https://github.com/AabhasTech/ComfyUI_Fast_Preview.git
  1. Restart ComfyUI.

Usage

Add the node via image -> Fast Preview & Optimize. Connect an image output to the node, select your format and quality, and run the prompt!

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

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