Extensions/darkHUB Base64
ComfyUI Extension

darkHUB Base64

ComfyUI custom node for converting IMAGE batches into copyable PNG or MP4 Base64 strings, with optional MP4 audio muxing.

By Cyber05CC·Created 5 months ago·Updated 5 months ago· 0
Cyber05CC/darkHUB-Video-to-Base64
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CategorydarkHUB
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Updated5 months ago

Nodes (1)

darkHUB Base64

The copy-and-paste bridge from ComfyUI to every API that eats base64

darkHUB
Readme

darkHUB Base64

darkHUB Base64 is a single-purpose ComfyUI custom node.

It accepts an IMAGE output directly from nodes such as VAE Decode, stores the result as Base64 inside the node, and exposes a single Copy Base64 button in the node UI.

Included Node

darkHUB Base64

Inputs:

  • images: ComfyUI IMAGE
  • format: auto, png, or mp4
  • fps: frame rate for MP4 output
  • quality: MP4 quality control
  • audio (optional): ComfyUI AUDIO, embedded when the output format is MP4

Outputs:

  • base64_string
  • mime_type
  • frame_count

Behavior

  • auto chooses png for a single image with no audio.
  • auto chooses mp4 for multi-frame batches or when audio is connected.
  • The node UI only renders one button: Copy Base64.
  • PNG output does not accept audio.
  • MP4 output keeps the audio track when audio is connected.

Installation

  1. Place this repository inside ComfyUI/custom_nodes/.
  2. Install dependencies:
pip install -r requirements.txt
  1. Restart ComfyUI.

ffmpeg Notes

  • If ffmpeg is available in your system path, the node uses it directly.
  • Otherwise the fallback binary from imageio-ffmpeg is used when available.
  • MP4 output requires working ffmpeg support.

Version

Current release: 3.0.2

License

MIT License. See LICENSE.