head to head · open source
OpenViking vs BookStack
OpenViking has 41,383 GitHub stars, 3,362 forks, 999 open issues and last shipped yesterday. BookStack has 19,122 stars, 2,433 forks, 3 open issues and last shipped yesterday. OpenViking leads on adoption by 116% (41,383 vs 19,122 stars). OpenViking is written in Python under AGPL-3.0; BookStack is written in PHP under MIT. OpenViking has attracted 8% as many forks as stars, BookStack 13%. BookStack 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 | BookStack | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 19K |
| License | AGPL-3.0 | MIT |
| Written in | Python | PHP |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.4K | ⑂ 2.4K |
| 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 BookStack if
- You want the BookStack feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and BookStack 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 BookStack
BookStack A platform for storing and organising information and documentation. Details for BookStack can be found on the official website at Installation Instructions Documentation Demo Instance Screenshots BookStack Blog Issue List Community Discussions Support Options 📚 Project Definition BookStack is an opinionated documentation platform that provides a pleasant and simple out of the box experience. New users to an instance should find the experience intuitive and only basic word processing skills should be required to get involved in creating content on BookStack. The platform should provide advanced power…
read the full BookStack overview →
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Frequently asked questions
Is OpenViking or BookStack more popular?
OpenViking has 41,383 GitHub stars and BookStack has 19,122. OpenViking has the larger community by that measure.
Are OpenViking and BookStack free?
Both are open source. OpenViking is licensed under AGPL-3.0 and BookStack under MIT. Neither carries a licence fee.
What is the difference between OpenViking and BookStack?
OpenViking is written in Python and BookStack in PHP. 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 BookStack?
Choose OpenViking if you want the larger community (41,383 stars) or its AGPL-3.0 licence terms. Choose BookStack if its feature set, stack or MIT licence fits better. Both are self-hostable.