head to head · open source
OpenViking vs codealmanac
OpenViking has 41,383 GitHub stars, 3,362 forks, 999 open issues and last shipped yesterday. codealmanac has 995 stars, 74 forks, 53 open issues and last shipped 3 months ago. OpenViking leads on adoption by 4,059% (41,383 vs 995 stars). OpenViking is written in Python under AGPL-3.0; codealmanac is written in TypeScript under Apache-2.0. OpenViking has attracted 8% as many forks as stars, codealmanac 7%. OpenViking was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (knowledge-base), 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
| OpenViking | codealmanac | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 995 |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-07-25 |
| Forks | ⑂ 3.4K | ⑂ 74 |
| 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 codealmanac if
- You want the codealmanac feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and codealmanac 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 codealmanac
CodeAlmanac A living wiki for your codebase, maintained by AI coding agents. CodeAlmanac gives AI agents the context code alone cannot hold: why a system is shaped the way it is, what broke before, which invariants matter, and how workflows cross files and services. The wiki is plain markdown in your repo, indexed locally, and reviewed in Git like any other code change. Supported today: macOS with Codex or Claude Code. Requires Python 3.12+. Quickstart See Setup for configuration options. Once CodeAlmanac is set up: Setup Install global agent instructions for the local tools you use: Setup installs agent…
read the full codealmanac overview →
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Frequently asked questions
Is OpenViking or codealmanac more popular?
OpenViking has 41,383 GitHub stars and codealmanac has 995. OpenViking has the larger community by that measure.
Are OpenViking and codealmanac free?
Both are open source. OpenViking is licensed under AGPL-3.0 and codealmanac under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenViking and codealmanac?
OpenViking is written in Python and codealmanac 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 codealmanac?
Choose OpenViking if you want the larger community (41,383 stars) or its AGPL-3.0 licence terms. Choose codealmanac if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.