head to head · open source
Mermaid vs britecharts
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. britecharts has 3,719 stars, 215 forks, 1 open issues and last shipped yesterday. Mermaid leads on adoption by 2,346% (90,981 vs 3,719 stars). Mermaid is written in TypeScript under MIT; britecharts is written in TypeScript under Apache-2.0. Mermaid has attracted 10% as many forks as stars, britecharts 6%. britecharts was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (javascript), 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
| Mermaid | britecharts | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 3.7K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 9.4K | ⑂ 215 |
| 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 britecharts if
- You want the britecharts 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 britecharts 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 britecharts
Britecharts Britecharts is a client side reusable Charting Library based on [D3.js v5][1] that offers easy and intuitive use of charts and components that can be composed together to create amazing visualizations. Britecharts [components][32] have been written in ES2016 with a Test Driven methodology, so they are fully tested , and we are committed to keeping them that way. Key Features Reusability Composability Great design Usage The typical use of Britecharts involves creating a chart using its simple API, then rendering it on a container which has previously had data applied to it. The code will look like…
read the full britecharts overview →
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Frequently asked questions
Is Mermaid or britecharts more popular?
Mermaid has 90,981 GitHub stars and britecharts has 3,719. Mermaid has the larger community by that measure.
Are Mermaid and britecharts free?
Both are open source. Mermaid is licensed under MIT and britecharts under Apache-2.0. Neither carries a licence fee.
What is the difference between Mermaid and britecharts?
Mermaid is written in TypeScript and britecharts 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, Mermaid or britecharts?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose britecharts if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.