head to head · open source
Mermaid vs dataease
Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. dataease has 24,666 stars, 4,256 forks, 49 open issues and last shipped yesterday. Mermaid leads on adoption by 269% (90,981 vs 24,666 stars). Mermaid is written in TypeScript under MIT; dataease is written in Java under a custom or non-standard licence. Mermaid has attracted 10% as many forks as stars, dataease 17%. 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 | dataease | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 25K |
| License | MIT | Custom / other |
| Written in | TypeScript | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 9.4K | ⑂ 4.3K |
| 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 dataease if
- You want the dataease feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Java
- You evaluated both and dataease 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 dataease
人人可用的开源 BI 工具 什么是 DataEase？ DataEase 是开源的 BI 工具，帮助用户快速分析数据并洞察业务趋势，从而实现业务的改进与优化。DataEase 支持丰富的数据源连接，能够通过拖拉拽方式快速制作图表，并可以方便的与他人分享。 👉 观看视频：DataEase 两分钟介绍视频 👉 观看PPT：DataEase PPT 材料 👉 购买图书：《DataEase 数据可视化分析与实践》 DataEase 的优势： 开源开放：零门槛，线上快速获取和安装，按月迭代； 简单易用：极易上手，通过鼠标点击和拖拽即可完成分析； 全场景支持：多平台安装和多样化嵌入支持； 安全分享：支持多种数据分享方式，确保数据安全； AI 加持：无缝集成 SQLBot 实现智能问数。 DataEase 支持的数据源： OLTP 数据库： MySQL、Oracle、SQL Server、PostgreSQL、MariaDB、Db2、TiDB、MongoDB BI 等； OLAP 数据库： ClickHouse、Apache Doris、Apache Impala、StarRocks 等； 数据仓库/数据湖： Amazon RedShift 等； 数据文件： Excel、CSV 等； API 数据源。 快速开始 如果是用于生产环境，推荐使用 离线安装包方式 进行安装部署。
read the full dataease overview →
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Frequently asked questions
Is Mermaid or dataease more popular?
Mermaid has 90,981 GitHub stars and dataease has 24,666. Mermaid has the larger community by that measure.
Are Mermaid and dataease free?
Both are open source. Mermaid is licensed under MIT, and dataease has no licence declared in this registry. Both are free to self-host.
What is the difference between Mermaid and dataease?
Mermaid is written in TypeScript and dataease 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 dataease?
Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose dataease if its feature set, stack or Custom / other licence fits better. Both are self-hostable.