Technologies

What is ComfyUI built with?

ComfyUI is a Python repo built with AIOHTTP. It reaches it with SQLAlchemy and alembic, uses AI through torch, einops, transformers, tokenizers, and sentencepiece, makes its content with pillow and av, validates its data with Pydantic, and deploys with psutil. It has 731 files and 348,332 written lines, with 280 test files.

Read on November 4, 2026, at commit 70bcb4e. Read it as markdown

ComfyUI731 files

Backend

Data access

  • SQLAlchemy24 files
  • alembic11 files

AI

  • torch438 files
  • einops46 files
  • transformers20 files
  • tokenizers6 files
  • sentencepiece1 file

Support

The base

  • AIOHTTP23 files

Content

Validation

Deploy

  • psutil2 files

Other

  • NumPy91 files
  • tqdm23 files
  • SciPy16 files
  • pyyaml4 files
  • pydantic-settings2 files
  • filelock1 file
  • requests1 file
  • yarl1 file

Other repos with a similar stack

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Frequently asked questions

What language is ComfyUI written in?
ComfyUI is written in Python: 731 files and 348,332 written lines.
What framework does ComfyUI use?
ComfyUI is built with AIOHTTP.
Does ComfyUI use AI?
Yes. ComfyUI uses AI through torch, einops, transformers, tokenizers, and sentencepiece.
Does ComfyUI have tests?
Yes. ComfyUI has 280 test files.
Which repos have a stack like ComfyUI's?

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