Best free Notion AI alternatives (open source, 2026)
Updated · 20 repos compared · data refreshed nightly from GitHub
The best free Notion AI alternative for most people is AppFlowy (78k GitHub stars, AGPL-3.0 license). writely describes itself as a Notion AI alternative. All 20 options below are open source and run on your own computer or server, so there's no subscription.
Notion AI (AI notes and knowledge base) is a paid, closed-source product. The open-source projects below do the same job and run on your own computer or server. Stars and activity come straight from GitHub.
Top picks
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
- Needs:
- works on Mac (per README)
- Trade-off
- Better than Notion AI: very active development. Worse: AGPL: if you run it as a service, you must share your changes.
❤️🔥 A chrome extension as an alternative to Notion AI that goes beyond Notion AI. | 一个替代 Notion AI 的浏览器插件，不止于 Notion AI
- Needs:
- Hardware not stated in its README
- Trade-off
- Better than Notion AI: a permissive MIT license, very active development. Worse: you install and run it yourself instead of Notion AI's hosted app.
There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and r
- Needs:
- Hardware not stated in its README
- Trade-off
- Better than Notion AI: very active development. Worse: license not detected by GitHub; check it before commercial use.
Comparison
✓ yes · ✗ no · – not stated in the README. Hardware details are read from each README and may be incomplete.
Notion AI vs open source: what you give up
- Setup. Notion AI is ready as soon as you sign up. These projects need installing, usually with Python, Node or Docker.
- Hardware. Most READMEs don't state hardware needs; heavier models run much faster with a GPU. 2 mention Mac support.
- Polish and support. Paid products usually have a smoother interface, managed updates and customer support. Open source gives you privacy, no usage limits and no monthly bill.
- Maintenance. 16 of 20 were updated in the last 30 days.
- License. 15 of 20 use a standard open-source license (MIT, Apache, GPL and similar). Check the license before commercial use.
How we picked
Projects that describe themselves as a Notion AI alternative come first, then projects that do the same job, ranked by how well they match and by GitHub stars. Projects that need a paid API key, and projects from Notion AI's own company, are left out. Stars and activity are verified with the GitHub API every night; hardware details come from each README. Full method.
FAQ
Is there a free alternative to Notion AI?
Yes. We list 20 free, open-source GitHub projects that do the same job as Notion AI. The most popular are ragflow, AppFlowy and AFFiNE.
What is the best open-source Notion AI alternative?
It depends on your setup. Best overall: AppFlowy. Closest Notion AI replacement: writely. Also excellent: AFFiNE. Compare GitHub stars, license and hardware needs in the table on this page.
Can I run a Notion AI alternative on a Mac?
Yes. According to their READMEs, AppFlowy and private-gpt run on macOS.
Do I need a GPU to replace Notion AI?
Most READMEs don't state hardware needs. Expect heavier models to run much faster with a GPU.
Are these Notion AI alternatives really free?
Yes. All 20 are open source on GitHub, and projects that need a paid API key are left out. 15 use a standard open-source license such as MIT, Apache or GPL; check the license before commercial use.