head to head · open source
wiki vs oh-my-mermaid
wiki has 29,128 GitHub stars, 3,335 forks, 182 open issues and last shipped yesterday. oh-my-mermaid has 3,371 stars, 268 forks, 11 open issues and last shipped 7 months ago. wiki leads on adoption by 764% (29,128 vs 3,371 stars). wiki is written in TypeScript under AGPL-3.0; oh-my-mermaid is written in TypeScript under MIT. wiki has attracted 11% as many forks as stars, oh-my-mermaid 8%. wiki was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (documentation), 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
| wiki | oh-my-mermaid | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 3.4K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-04-07 |
| Forks | ⑂ 3.3K | ⑂ 268 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick wiki if
- You weight community size — 29K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick oh-my-mermaid if
- You want the oh-my-mermaid feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and oh-my-mermaid fits your workflow better
About wiki
A modern, lightweight and powerful wiki app built on NodeJS Official Website Documentation Requirements Installation Demo Changelog Feature Requests Chat with us on Discord Translations (We need your help!) Special Thanks Contribute Follow our Twitter feed to learn about upcoming updates and new releases! Donate Wiki.js is an open source project that has been made possible due to the generous contributions by community backers. If you are interested in supporting this project, please consider becoming a sponsor, becoming a patron, donating to our OpenCollective, via Paypal or via Ethereum (
About oh-my-mermaid
English Türkçe 한국어 日本語 中文 Oh my mermaid AI writes code in seconds. Humans understand it in hours. But skip understanding, the codebase becomes a black box — even to you. omm closes the gap — architecture docs, generated by AI, for humans. Quick Start Paste this in your terminal: Then open your AI coding tool and use the /omm scan skill: That's it. View the result: Example omm scanned itself. This is what it found. How It Works Your AI analyzes the codebase and generates perspectives — different lenses on your architecture (structure, data flow, integrations...). Each perspective contains a Mermaid diagram and…
read the full oh-my-mermaid overview →
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Frequently asked questions
Is wiki or oh-my-mermaid more popular?
wiki has 29,128 GitHub stars and oh-my-mermaid has 3,371. wiki has the larger community by that measure.
Are wiki and oh-my-mermaid free?
Both are open source. wiki is licensed under AGPL-3.0 and oh-my-mermaid under MIT. Neither carries a licence fee.
What is the difference between wiki and oh-my-mermaid?
wiki is written in TypeScript and oh-my-mermaid 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, wiki or oh-my-mermaid?
Choose wiki if you want the larger community (29,128 stars) or its AGPL-3.0 licence terms. Choose oh-my-mermaid if its feature set, stack or MIT licence fits better. Both are self-hostable.