head to head · open source
openhuman vs Leon
openhuman has 39,838 GitHub stars, 3,928 forks, 189 open issues and last shipped yesterday. Leon has 17,518 stars, 1,469 forks, 112 open issues and last shipped yesterday. openhuman leads on adoption by 127% (39,838 vs 17,518 stars). openhuman is written in Rust under GPL-3.0; Leon is written in TypeScript under MIT. openhuman has attracted 10% as many forks as stars, Leon 8%. Leon was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-assistant), so they are genuine substitutes rather than adjacent tools.
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
| openhuman | Leon | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 18K |
| License | GPL-3.0 | MIT |
| Written in | Rust | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 3.9K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openhuman if
- You weight community size — 40K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick Leon if
- You want the Leon feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Leon fits your workflow better
About openhuman
OpenHuman is an open source, GPL 3.0 licensed agent harness written in Rust and shipped as a Tauri desktop application, aimed at individuals who want a personal AI assistant whose memory, orchestration, and research tooling run local first on their own machine.
read the full openhuman overview →
About Leon
Leon is open source personal AI assistant. It lives in Node.js and TypeScript ecosystem, under AI Interaction & Interfaces category. Project builds around tools, context, memory, and agentic execution. It aims to stay practical, privacy aware, and grounded in real environment. Leon can operate locally, use dedicated tools instead of relying on free form guessing, and complete tasks from start to finish across deterministic workflows and agent style execution.
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Frequently asked questions
Is openhuman or Leon more popular?
openhuman has 39,838 GitHub stars and Leon has 17,518. openhuman has the larger community by that measure.
Are openhuman and Leon free?
Both are open source. openhuman is licensed under GPL-3.0 and Leon under MIT. Neither carries a licence fee.
What is the difference between openhuman and Leon?
openhuman is written in Rust and Leon in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, openhuman or Leon?
Choose openhuman if you want the larger community (39,838 stars) or its GPL-3.0 licence terms. Choose Leon if its feature set, stack or MIT licence fits better. Both are self-hostable.