Mermaid (software)

Open-source JavaScript-based diagramming and charting tool From Wikipedia, the free encyclopedia

Mermaid is an open-source JavaScript-based diagramming and charting tool that generates diagrams from text-based descriptions.[1] Created by Knut Sveidqvist in 2014, the project originated from a need to simplify diagram creation in documentation workflows after experiencing issues with proprietary software file formats.[2][3]

Quick Facts Developer(s), Initial release ...
Mermaid
Developer(s)Knut Sveidqvist and contributors
Initial release2014
Repositorygithub.com/mermaid-js/mermaid
Written inJavaScript
Operating systemCross-platform
TypeDiagramming and charting
LicenseMIT
Websitemermaid.js.org
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Features

Mermaid allows users to create various types of diagrams using a Markdown-like syntax, including:[4]

  • Flowcharts
  • Sequence diagrams
  • Class diagrams
  • State diagrams
  • Gantt charts
  • Entity–relationship diagrams

The software provides both text-based and visual editing interfaces, allowing users to switch between the two modes.[2] Users can create diagrams through the Mermaid Live Editor, a web-based tool that provides real-time preview capabilities without requiring local installation.[5]

Integration

Mermaid is supported natively by several platforms and services:[6][7]

Development

As of 2024, the project is developed under both open-source and commercial models. The core functionality remains open-source under the MIT License, while a commercial offering called Mermaid Chart provides additional features and hosted services.[2] The open-source project has garnered significant community engagement, with over 74,000 GitHub stars and 6,800 forks as of early 2025.[1]

In March 2024, the commercial entity raised $7.5 million in seed funding from investors including Open Core Ventures, Sequoia, and Microsoft's M12 fund.[2]

Recognition

The project received the JS Open Source Award in 2019 for "The Most Exciting Use of Technology."[18]

See also

References

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