head to head · open source

Mermaid vs DeepBI

Mermaid has 90,981 GitHub stars, 9,444 forks, 1,781 open issues and last shipped yesterday. DeepBI has 2,383 stars, 372 forks, 71 open issues and last shipped 2 months ago. Mermaid leads on adoption by 3,718% (90,981 vs 2,383 stars). Mermaid is written in TypeScript under MIT; DeepBI is written in Python under MIT. Mermaid has attracted 10% as many forks as stars, DeepBI 16%. 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.

Mermaid ★ 91K DeepBI ★ 2.4K category Data & Analytics

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Side by side

Mermaid DeepBI
GitHub stars ★ 91K ★ 2.4K
License MIT MIT
Written in TypeScript Python
Last push 2026-11-02 2026-08-28
Forks ⑂ 9.4K ⑂ 372
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

full Mermaid profile →

pick DeepBI if

  • You want the DeepBI feature set and don't need the biggest community
  • You prefer the MIT license terms
  • Your stack matches Python
  • You evaluated both and DeepBI fits your workflow better

full DeepBI profile →

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 DeepBI

DeepBI DeepBI is an AI native data analysis platform. DeepBI leverages the power of large language models to explore, query, visualize, and share data from any data source. Users can use DeepBI to gain data insight and make data driven decisions. Languages: English 中文 Developer:dev@deepbi.com Business:hi@deepbi.com If you think DeepBI is helpful to you, please help by clicking here on the ⭐ Star and Fork in the upper right corner. Your support is the greatest driving force for DeepBI to become better. Video example user manual DeepBI user manual ✨ Features 1 Conversational data analysis: Users can get arbitrary…

read the full DeepBI overview →

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Frequently asked questions

Is Mermaid or DeepBI more popular?

Mermaid has 90,981 GitHub stars and DeepBI has 2,383. Mermaid has the larger community by that measure.

Are Mermaid and DeepBI free?

Both are open source. Mermaid is licensed under MIT and DeepBI under MIT. Neither carries a licence fee.

What is the difference between Mermaid and DeepBI?

Mermaid is written in TypeScript and DeepBI in Python. 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 DeepBI?

Choose Mermaid if you want the larger community (90,981 stars) or its MIT licence terms. Choose DeepBI if its feature set, stack or MIT licence fits better. Both are self-hostable.