Sirena icon
Sirena icon

Sirena

Sirena is a free, open-source editor for Mermaid diagrams. It renders text-based diagrams as you write and lets you edit elements directly on the drawing. You can adjust shapes, colours, layout and typography, and start from built-in examples.

Sirena editor with Mermaid code and a live diagram preview

Cost / License

Platforms

  • Online
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Features

Properties

  1.  Support for Themes
  2.  Privacy focused

Features

  1.  Live Preview
  2.  Ad-free
  3.  WYSIWYG Support
  4.  Dark Mode
  5.  No Tracking
  6.  No registration required
  7.  Mermaid support

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GitHub repository

  •  1 Stars
  •  0 Forks
  •  0 Open Issues
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Sirena was added to AlternativeTo by Juan José de Haro on and this page was last updated .

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What is Sirena?

Sirena is a free, open-source editor for Mermaid diagrams. It renders text-based diagrams as you write and lets you edit elements directly on the drawing. You can adjust shapes, colours, layout and typography, and start from built-in examples. Diagrams can be saved in the browser, shared through a link that contains their code, embedded in a web page, or exported as PNG, SVG, HTML or Mermaid code. Sirena works without an account or application server and is available in English, Spanish, Catalan, Galician and Basque.