head to head · open source
OpenViking vs Fumadocs
OpenViking has 41,383 GitHub stars, 3,362 forks, 999 open issues and last shipped yesterday. Fumadocs has 13,529 stars, 752 forks, 0 open issues and last shipped yesterday. OpenViking leads on adoption by 206% (41,383 vs 13,529 stars). OpenViking is written in Python under AGPL-3.0; Fumadocs is written in TypeScript under MIT. OpenViking has attracted 8% as many forks as stars, Fumadocs 6%. OpenViking 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
| OpenViking | Fumadocs | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 14K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.4K | ⑂ 752 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenViking if
- You weight community size — 41K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Fumadocs if
- You want the Fumadocs feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Fumadocs fits your workflow better
About OpenViking
The Context Database for AI Agents English / 中文 / 日本語 Website · Live Demo · GitHub · Issues · Docs · Blog Lark · WeChat · Discord · X What is OpenViking OpenViking is an open source context database for AI agents — one filesystem for everything an agent knows: knowledge, memory, and skills. Most agent memory is a black box: text goes in, embeddings come out, and nobody can see what was actually stored. OpenViking organizes context as a virtual filesystem under viking:// instead. Agents navigate it like files — ls , tree , read , write , grep — and you can open any directory to inspect and edit what your agent…
read the full OpenViking overview →
About Fumadocs
The framework for building documentation websites in React.js frameworks and Astro. Officially Supported: Next.js Astro (with React) Vite: Tanstack Start, Waku, React Router 📘 Learn More: Documentation. Compatibility All packages are ESM only . Sticker Welcome to print it out :D Contributions Make sure to read the Contributing Guide before submitting a pull request.
read the full Fumadocs overview →
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Frequently asked questions
Is OpenViking or Fumadocs more popular?
OpenViking has 41,383 GitHub stars and Fumadocs has 13,529. OpenViking has the larger community by that measure.
Are OpenViking and Fumadocs free?
Both are open source. OpenViking is licensed under AGPL-3.0 and Fumadocs under MIT. Neither carries a licence fee.
What is the difference between OpenViking and Fumadocs?
OpenViking is written in Python and Fumadocs 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, OpenViking or Fumadocs?
Choose OpenViking if you want the larger community (41,383 stars) or its AGPL-3.0 licence terms. Choose Fumadocs if its feature set, stack or MIT licence fits better. Both are self-hostable.