head to head · open source
ComfyUI vs rikkahub
ComfyUI has 133,963 GitHub stars, 15,874 forks, 4,894 open issues and last shipped today. rikkahub has 7,740 stars, 690 forks, 282 open issues and last shipped today. ComfyUI leads on adoption by 1,631% (133,963 vs 7,740 stars). ComfyUI is written in Python under GPL-3.0; rikkahub is written in Kotlin under AGPL-3.0. ComfyUI has attracted 12% as many forks as stars, rikkahub 9%. rikkahub was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ComfyUI | rikkahub | |
|---|---|---|
| GitHub stars | ★ 134K | ★ 7.7K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | Python | Kotlin |
| Last push | 2026-09-20 | 2026-09-20 |
| Forks | ⑂ 16K | ⑂ 690 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 134K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick rikkahub if
- You want the rikkahub feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and rikkahub fits your workflow better
About ComfyUI
ComfyUI is a GPL 3.0 licensed Python and PyTorch node graph application, local API, and backend for running diffusion models across image, video, audio, 3D, and text workflows, built for visual professionals who want control over every model, parameter, and output, and for developers who embed those workflows into production pipelines.
read the full ComfyUI overview →
About rikkahub
RikkaHub is a native Android LLM chat client, written in Kotlin and released under the AGPL 3.0 licence, that lets a single user switch between different AI providers inside the same conversation.
read the full rikkahub overview →
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Frequently asked questions
Is ComfyUI or rikkahub more popular?
ComfyUI has 133,963 GitHub stars and rikkahub has 7,740. ComfyUI has the larger community by that measure.
Are ComfyUI and rikkahub free?
Both are open source. ComfyUI is licensed under GPL-3.0 and rikkahub under AGPL-3.0. Neither carries a licence fee.
What is the difference between ComfyUI and rikkahub?
ComfyUI is written in Python and rikkahub in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ComfyUI or rikkahub?
Choose ComfyUI if you want the larger community (133,963 stars) or its GPL-3.0 licence terms. Choose rikkahub if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.