head to head · open source
Mermaid vs allure2
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. allure2 has 5,579 stars, 781 forks, 87 open issues and last shipped yesterday. Mermaid leads on adoption by 1,531% (90,981 vs 5,579 stars). Mermaid is written in TypeScript under MIT; allure2 is written in HTML under Apache-2.0. Mermaid has attracted 10% as many forks as stars, allure2 14%. allure2 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
| Mermaid | allure2 | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 5.6K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | HTML |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 9.4K | ⑂ 781 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Mermaid if
- You weight community size — 91K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick allure2 if
- You want the allure2 feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches HTML
- You evaluated both and allure2 fits your workflow better
About Mermaid
Mermaid Generate diagrams from Markdown like text. Live Editor! 📖 Documentation 🚀 Getting Started 🌐 CDN 🙌 Join Us 简体中文 Try Live Editor previews of future releases: Develop Next :trophy: Mermaid was nominated and won the JS Open Source Awards (2019) in the category "The most exciting use of technology"!!! Thanks to all involved, people committing pull requests, people answering questions! 🙏 Table of content Expand contents About Examples Release Related projects Contributors Security and safe diagrams Reporting vulnerabilities Appreciation About Mermaid is a JavaScript based diagramming and charting tool…
read the full Mermaid overview →
About allure2
[license]: "Apache License 2.0" [site]: "Official Website" [docs]: "Documentation" [qametaio]: "Qameta Software" [blog]: "Qameta Software Blog" [Twitter]: "Qameta Software" [twitter team]: "Team" [build]: [build badge]: [maven]: "Maven Central" [maven badge]: [release]: "Latest release" [release badge]: [CONTRIBUTING.md]: .github/CONTRIBUTING.md [CODE OF CONDUCT.md]: CODE OF CONDUCT.md Allure Report [![build badge][]][build] [![release badge][]][release] [![maven badge][]][maven] Allure Report is a flexible multi language test report tool to show you a detailed representation of what has been tested and extract…
read the full allure2 overview →
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Frequently asked questions
Is Mermaid or allure2 more popular?
Mermaid has 90,981 GitHub stars and allure2 has 5,579. Mermaid has the larger community by that measure.
Are Mermaid and allure2 free?
Both are open source. Mermaid is licensed under MIT and allure2 under Apache-2.0. Neither carries a licence fee.
What is the difference between Mermaid and allure2?
Mermaid is written in TypeScript and allure2 in HTML. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Mermaid or allure2?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose allure2 if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.