Image generation
ComfyUI
Build image and video generation pipelines by wiring blocks together
★ 132k
September 2026
GPL-3.0
Image generation
What we checked ourselves
Not copied from the project's own blurb. These are things we opened and verified, with the date.
- 6 Sept 2026We checked that the link to the project still resolves.
- 13 Sept 2026We read the licence text itself (LICENSE). No unusual restrictions were stated.
- 30 Aug 2026We read the project's own documentation and found no sign that development has stopped.
Where this sits among the 211 tools we list in Image generation
- Works without using a terminal181 of 211
- No API key required196 of 211
- Keeps your data on your own machine33 of 211
- Commercial use confirmed as allowed74 of 211
Only 9 of the 211 meet all of the conditions above.
Counted from our own checks: every tool we list is examined against the same criteria.
What it does
Lays out each step of generation - the prompt, the style, the upscaling - as a block on a canvas that you connect with wires, so a workflow you like can be saved and reused to produce consistent output at volume. It handles video and audio generation as well as images, and finished workflows can be exposed as a simple form for other people to use. Desktop installers exist for Windows and macOS, so no command line is required, but a discrete GPU is needed for reasonable speed. The node-based approach takes real time to learn.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals
Before you start
- Setup difficultyEasy to start
- Command lineNot required
- API keyNot required
- Sends data onlineNo
Judged automatically from the project's own metadata. Always confirm on the official page.
ComfyUI FAQ
- Is ComfyUI free?
- The source is open, but the build distributed through the app store may be a paid download. Check the store listing before installing.
- Do I need to install anything or write code to use ComfyUI?
- You install it like a normal desktop app. No command line involved.
- Does ComfyUI work on a phone?
- No. It needs a computer.
- Can I use ComfyUI commercially?
- The licence is GPL-3.0. Using it commercially is fine, but if you distribute something built on it you may be required to release that under the same licence. Keep it internal, or check before distributing.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| ComfyUI (this page) | Not needed | Not needed | No | No | Yes |
| ai-comic-factory | Not needed | Not needed | Yes | No | Not verified |
| FLUX.1-dev | Not needed | Not needed | Yes | No | With conditions |
| dalle-mini | Not needed | Not needed | Yes | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.