head to head · open source
Jan vs Proma
Jan has 45,440 GitHub stars, 3,147 forks, 521 open issues and last shipped yesterday. Proma has 2,241 stars, 306 forks, 202 open issues and last shipped 1 months ago. Jan leads on adoption by 1,928% (45,440 vs 2,241 stars). Jan is written in Rust under a custom or non-standard licence; Proma is written in TypeScript under AGPL-3.0. Jan has attracted 7% as many forks as stars, Proma 14%. Jan was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (chatgpt, llm), 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
| Jan | Proma | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 2.2K |
| License | Custom / other | AGPL-3.0 |
| Written in | Rust | TypeScript |
| Last push | 2026-11-04 | 2026-09-26 |
| Forks | ⑂ 3.1K | ⑂ 306 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Jan if
- You weight community size — 45K stars and counting
- You want the Custom / other license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick Proma if
- You want the Proma feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Proma fits your workflow better
About Jan
Jan Open source ChatGPT replacement English · 中文 · 日本語 Getting Started Community Changelog Bug reports Jan is bringing the best of open source AI in an easy to use product. Download and run LLMs with full control and privacy . Installation The easiest way to get started is by downloading one of the following versions for your respective operating system: Platform Download Windows jan.exe macOS jan.dmg Linux (deb) jan.deb Linux (AppImage) jan.AppImage Linux (Arm64) How to Download from jan.ai or GitHub Releases. Features Local AI Models : Download and run LLMs (Llama, Gemma, Qwen, GPT oss etc.) from HuggingFace…
About Proma
Proma Proma 简介 欢迎访问 查看更完整的介绍。 Proma 是一款为专业用户打造的开源通用的桌面端 Agent 产品。功能涵盖了主流 Agent 具备的所有功能，包括 Chat 模式 Agent 模式 计划模式 项目分区 记忆能力 内嵌浏览器 内嵌终端 定时任务 Agent 平行探索 子会话 & 主会话 Skills / MCP / CLI 远程链接支持：微信、飞书、钉钉、Slack 各种文件的预览和编辑能力 专业用户场景 并为专业用户场景增加了很多专门适配的功能，辅助 Agent 可以更顺畅地完成对专业场景的支持，以下的所有功能都是跟 Agent 打通并且丝滑适配： Todo：方便任务在完成一半时先记一下，后续可以直接在输入框引用继续工作；或通过 Agent 一起创办 Todo 完成日常提醒，还可以跟 macOS 的提醒事项相互同步 日程：方便 Agent 也可以帮助你创建和管理日程，避免重要事件在日程上的冲突，同样可以跟 Agent 协作，并且也一样跟 macOS 的日历相互同步 Obsidian：深度集成了 Obsidian，比 Obsidian 更好的 markdown 实时编辑体验，为专业的知识管理、知识创造和研究型用户提供最丝滑的 Agent 交互体验 内嵌终端与浏览器：可以允许 Agent 直接登录并使用的可见终端和浏览器，丝滑应对编程场景和自动化任务等场景 Agent…
read the full Proma overview →
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Frequently asked questions
Is Jan or Proma more popular?
Jan has 45,440 GitHub stars and Proma has 2,241. Jan has the larger community by that measure.
Are Jan and Proma free?
Both are open source. Jan has no licence declared in this registry, and Proma is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Jan and Proma?
Jan is written in Rust and Proma 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, Jan or Proma?
Choose Jan if you want the larger community (45,440 stars) or its Custom / other licence terms. Choose Proma if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.