head to head · open source
Mermaid vs sentinl
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. sentinl has 1,319 stars, 290 forks, 22 open issues and last shipped 10 months ago. Mermaid leads on adoption by 6,798% (90,981 vs 1,319 stars). Mermaid is written in TypeScript under MIT; sentinl is written in JavaScript under Apache-2.0. Mermaid has attracted 10% as many forks as stars, sentinl 22%. 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.
← all 20902 open source comparisons
Side by side
| Mermaid | sentinl | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.3K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | JavaScript |
| Last push | 2026-11-02 | 2026-01-21 |
| Forks | ⑂ 9.4K | ⑂ 290 |
| 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 sentinl if
- You want the sentinl feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and sentinl 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 sentinl
SENTINL is looking for a Community! Interested in helping continue/maintain/extend/document/test the SENTINL open source project? Contact us or open an Issue, we'd love to have you onboard! Siren Investigate & Kibana Alerting & Reporting App Watching your data, 24/7/365. SENTINL extends Siren Investigate and Kibana with Alerting and Reporting functionality to monitor, notify and report on data series changes using standard queries, programmable validators and a variety of configurable actions Think of it as a free an independent "Watcher" which also has scheduled "Reporting" capabilities (PNG/PDFs snapshots)…
read the full sentinl overview →
More in Data & Analytics
Related comparisons
More Business Intelligence & Reporting projects
Compare either of these against the rest of the Business Intelligence & Reporting field.
Frequently asked questions
Is Mermaid or sentinl more popular?
Mermaid has 90,981 GitHub stars and sentinl has 1,319. Mermaid has the larger community by that measure.
Are Mermaid and sentinl free?
Both are open source. Mermaid is licensed under MIT and sentinl under Apache-2.0. Neither carries a licence fee.
What is the difference between Mermaid and sentinl?
Mermaid is written in TypeScript and sentinl 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 sentinl?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose sentinl if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.