Source: https://seerepo.com/r/Comfy-Org/ComfyUI/built
Markdown source: https://seerepo.com/r/Comfy-Org/ComfyUI/built.md
Description: ComfyUI is a Python repo built with AIOHTTP. It reaches it with SQLAlchemy and alembic. It has 731 files and 348,332 written lines, with 280 test files.

# 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.

Repository: https://github.com/Comfy-Org/ComfyUI

## Backend

### Data access

- **SQLAlchemy**: 24 files
- **alembic**: 11 files

### AI

- **torch**: 438 files
- **einops**: 46 files
- **transformers**: 20 files
- **tokenizers**: 6 files
- **sentencepiece**: 1 file

## Support

### The base

- **AIOHTTP**: 23 files

### Content

- **[pillow](https://seerepo.com/uses/pillow)**: 37 files
- **av**: 14 files

### Validation

- **[Pydantic](https://seerepo.com/uses/pydantic)**: 61 files

### Deploy

- **psutil**: 2 files

### Other

- **NumPy**: 91 files
- **tqdm**: 23 files
- **SciPy**: 16 files
- **pyyaml**: 4 files
- **pydantic-settings**: 2 files
- **filelock**: 1 file
- **requests**: 1 file
- **yarl**: 1 file

## Other repos with a similar stack

- [Significant-Gravitas/AutoGPT](https://seerepo.com/r/Significant-Gravitas/AutoGPT/built): AIOHTTP, SQLAlchemy, pillow, Pydantic, psutil · [Compare](https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/Significant-Gravitas/AutoGPT)
- [open-webui/open-webui](https://seerepo.com/r/open-webui/open-webui/built): AIOHTTP, SQLAlchemy, pillow, Pydantic, psutil · [Compare](https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/open-webui/open-webui)
- [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow/built): AIOHTTP, SQLAlchemy, pillow, Pydantic, psutil · [Compare](https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langflow-ai/langflow)
- [langchain-ai/langchain](https://seerepo.com/r/langchain-ai/langchain/built): AIOHTTP, SQLAlchemy, pillow, Pydantic · [Compare](https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langchain-ai/langchain)
- [browser-use/browser-use](https://seerepo.com/r/browser-use/browser-use/built): AIOHTTP, pillow, Pydantic, psutil · [Compare](https://seerepo.com/compare/browser-use/browser-use/vs/Comfy-Org/ComfyUI)
- [PrefectHQ/prefect](https://seerepo.com/r/PrefectHQ/prefect/built): AIOHTTP, SQLAlchemy, alembic, Pydantic · [Compare](https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/PrefectHQ/prefect)

## 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?

The ones that share most of its stack: Significant-Gravitas/AutoGPT, open-webui/open-webui, and langflow-ai/langflow.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.