head to head · open source
Mermaid vs jasperreports
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. jasperreports has 1,375 stars, 470 forks, 29 open issues and last shipped 2 days ago. Mermaid leads on adoption by 6,517% (90,981 vs 1,375 stars). Mermaid is written in TypeScript under MIT; jasperreports is written in Java under LGPL-3.0. Mermaid has attracted 10% as many forks as stars, jasperreports 34%. 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 | jasperreports | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.4K |
| License | MIT | LGPL-3.0 |
| Written in | TypeScript | Java |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 9.4K | ⑂ 470 |
| 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 jasperreports if
- You want the jasperreports feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches Java
- You evaluated both and jasperreports 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 jasperreports
[!IMPORTANT] JasperReports Library 7 released! The version 7 of the JasperReports Library introduces major refactoring of the project, which is needed for the Jakarta Migration. The changes help improving the dependency management by splitting the library into multiple optional artifacts ( .jar files) depending on the functionality they provide. Deprecated code has been removed and the backward compatibility of serialized/compiled .jasper report template files has been deliberately broken. More details about the changes can be found here. JasperReports Library 7.0.0 Change Log removal of the Ant build system and…
read the full jasperreports overview →
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Frequently asked questions
Is Mermaid or jasperreports more popular?
Mermaid has 90,981 GitHub stars and jasperreports has 1,375. Mermaid has the larger community by that measure.
Are Mermaid and jasperreports free?
Both are open source. Mermaid is licensed under MIT and jasperreports under LGPL-3.0. Neither carries a licence fee.
What is the difference between Mermaid and jasperreports?
Mermaid is written in TypeScript and jasperreports in Java. 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 jasperreports?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose jasperreports if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.