head to head · open source
Mermaid vs jsreport
Mermaid has 90,293 GitHub stars, 9,266 forks, 1,781 open issues and last shipped 3 days ago. jsreport has 1,319 stars, 265 forks, 100 open issues and last shipped 3 days ago. Mermaid leads on adoption by 6,746% (90,293 vs 1,319 stars). Mermaid is written in TypeScript under MIT; jsreport is written in JavaScript under LGPL-3.0. Mermaid has attracted 10% as many forks as stars, jsreport 20%. jsreport 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 | jsreport | |
|---|---|---|
| GitHub stars | ★ 90K | ★ 1.3K |
| License | MIT | LGPL-3.0 |
| Written in | TypeScript | JavaScript |
| Last push | 2026-09-15 | 2026-09-15 |
| Forks | ⑂ 9.3K | ⑂ 265 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Mermaid if
- You weight community size — 90K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick jsreport if
- You want the jsreport feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and jsreport fits your workflow better
About Mermaid
Mermaid is a JavaScript based diagramming tool that renders diagrams from Markdown like text definitions. It lives in the JavaScript/TypeScript ecosystem and operates both in the browser and in Node.js environments. The project’s core purpose is to eliminate the gap between software development and documentation by letting developers write diagrams alongside code, avoiding the rot and overhead of manual diagram maintenance.
read the full Mermaid overview →
About jsreport
jsreport is an open source JavaScript reporting platform for designing and rendering business reports. It runs as a reporting server and lets developers define report templates with JavaScript templating engines such as handlebars. The project lives in the JavaScript and npm ecosystem, and it is distributed through npm, Docker, and compiled binaries under the LGPL 3.0 license.
read the full jsreport overview →
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Frequently asked questions
Is Mermaid or jsreport more popular?
Mermaid has 90,293 GitHub stars and jsreport has 1,319. Mermaid has the larger community by that measure.
Are Mermaid and jsreport free?
Both are open source. Mermaid is licensed under MIT and jsreport under LGPL-3.0. Neither carries a licence fee.
What is the difference between Mermaid and jsreport?
Mermaid is written in TypeScript and jsreport in JavaScript. 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 jsreport?
Choose Mermaid if you want the larger community (90,293 stars) or its MIT licence terms. Choose jsreport if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.