head to head · open source
Mermaid vs react-simple-maps
Mermaid has 90,969 GitHub stars, 9,441 forks, 1,781 open issues and last shipped 2 days ago. react-simple-maps has 3,390 stars, 461 forks, 170 open issues and last shipped 2 months ago. Mermaid leads on adoption by 2,583% (90,969 vs 3,390 stars). Mermaid is written in TypeScript under MIT; react-simple-maps is written in TypeScript under MIT. Mermaid has attracted 10% as many forks as stars, react-simple-maps 14%. Mermaid 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 | react-simple-maps | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 3.4K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-01 | 2026-09-12 |
| Forks | ⑂ 9.4K | ⑂ 461 |
| 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 react-simple-maps if
- You want the react-simple-maps feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and react-simple-maps 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 react-simple-maps
React Simple Maps Compose map charts the same way you would write any other layout. Fully typed mature api with high test coverage, built on d3 geo and topojson. Read the docs to get started with React Simple Maps. Why React Simple Maps aims to make working with svg maps in react easier. It handles tasks such as panning, zooming and simple rendering optimization, and takes advantage of parts of d3 geo and topojson client instead of relying on the entire d3 library. Since React Simple Maps leaves DOM work to react, it also plays nicely with other react component libraries. Install Usage React simple maps exposes…
read the full react-simple-maps overview →
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Frequently asked questions
Is Mermaid or react-simple-maps more popular?
Mermaid has 90,969 GitHub stars and react-simple-maps has 3,390. Mermaid has the larger community by that measure.
Are Mermaid and react-simple-maps free?
Both are open source. Mermaid is licensed under MIT and react-simple-maps under MIT. Neither carries a licence fee.
What is the difference between Mermaid and react-simple-maps?
Mermaid is written in TypeScript and react-simple-maps 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 react-simple-maps?
Choose Mermaid if you want the larger community (90,969 stars) or its MIT licence terms. Choose react-simple-maps if its feature set, stack or MIT licence fits better. Both are self-hostable.