Moxie Mermaid Editor - Free live diagram maker with GitHub integration

Show HN: Free Mermaid Diagram Editor

Moxie Mermaid Editor - Free live diagram maker with GitHub integration

Moxie Mermaid Editor is a completely free, browser-based tool for creating and exporting Mermaid diagrams instantly. It features a live preview that updates as you type, allowing for seamless collaboration via shareable URLs without requiring an account. Users can export clean SVG or PNG files for documentation, slides, and wikis. The tool emphasizes privacy by running entirely in the browser, ensuring diagrams never leave your device. For teams, it offers advanced integration with GitHub to automatically generate and refresh architecture diagrams from source code on every merge, solving the pain of maintaining outdated documentation.

Everything runs in your browser. Diagrams never leave your device.
  1. rdwrrr

    Thanks for dropping this here.

    I have been frustrated for quite some time.

    I blindly followed the advice to learn some mermaid. Then I discovered that the ecosystem absolutely sucks.

  2. hackthemack

    Question for mermaid users out there. I have not used mermaid more than just superficially looking at it but it looks to me like a re-implementation of graphviz? Which has been around forever. Is there something it does that makes it more appealing?

    I am not knocking this Free Mermaid Diagram Editor either. Seems decent. But, similarly, edotor has been around forever.

    https://edotor.net/

  3. BLKNSLVR

    Handy.

    I've been (very loosely) trying to get AI to generate diagrams for a while, and even Copilot can't get Visio's file format correct enough to allow Visio to open it successfully.

    This is a nice clean interface I can just paste attempts into. Thank you!

More from this day

2026-07-08