head to head · open source
Mermaid vs react-chartjs-2
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. react-chartjs-2 has 6,937 stars, 2,424 forks, 111 open issues and last shipped 5 days ago. Mermaid leads on adoption by 1,212% (90,981 vs 6,937 stars). Mermaid is written in TypeScript under MIT; react-chartjs-2 is written in TypeScript under MIT. Mermaid has attracted 10% as many forks as stars, react-chartjs-2 35%. 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-chartjs-2 | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 6.9K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-10-29 |
| Forks | ⑂ 9.4K | ⑂ 2.4K |
| 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-chartjs-2 if
- You want the react-chartjs-2 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and react-chartjs-2 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-chartjs-2
react chartjs 2 React components for Chart.js , the most popular charting library. Supports Chart.js v4 and v3. [![NPM version][npm]][npm url] [![Downloads][downloads]][downloads url] [![Build status][build]][build url] [![Coverage status][coverage]][coverage url] [![Bundle size][size]][size url] [npm]: [npm url]: [downloads]: [downloads url]: [build]: [build url]: [coverage]: [coverage url]: [size]: [size url]: Quickstart • Docs • Stack Overflow Quickstart Install this library with peer dependencies: We recommend using chart.js@^4.0.0 . Then, import and use individual components: Docs Migration to v4 Working…
read the full react-chartjs-2 overview →
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Frequently asked questions
Is Mermaid or react-chartjs-2 more popular?
Mermaid has 90,981 GitHub stars and react-chartjs-2 has 6,937. Mermaid has the larger community by that measure.
Are Mermaid and react-chartjs-2 free?
Both are open source. Mermaid is licensed under MIT and react-chartjs-2 under MIT. Neither carries a licence fee.
What is the difference between Mermaid and react-chartjs-2?
Mermaid is written in TypeScript and react-chartjs-2 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-chartjs-2?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose react-chartjs-2 if its feature set, stack or MIT licence fits better. Both are self-hostable.