caoergou

caoergou / MermZen

Public

A clean, lightweight Mermaid diagram editor — hand-drawn style, live preview, and one-click export.

eric.run.placeMermZen codemirror diagram diagram-editor flowchart hand-drawn
47
10
100% credibility
Found Mar 07, 2026 at 47 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

MermZen is a browser-based editor for Mermaid diagrams featuring live preview syntax highlighting themes hand-drawn styles and export to SVG or PNG with shareable URLs.

How It Works

1
🔍 Discover MermZen

You find a simple online tool for turning text into neat diagrams like flowcharts or timelines.

2
🌐 Open the page

Click the link to see a split screen with a writing box on the left and a blank preview area on the right.

3
✏️ Type and watch magic

Start typing easy words like 'start' then arrows to 'decision' and see your diagram draw itself live on the right.

4
🎨 Style it your way

Pick a hand-drawn look or change colors and backgrounds to make it perfect for notes or slides.

5
📤 Grab your image

Save as a picture file or copy a share link that anyone can open instantly.

✅ Diagram done!

You now have a beautiful custom chart ready for your presentation blog or report without any fuss.

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Star Growth

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AI-Generated Review

What is MermZen?

MermZen is a TypeScript-built, clean lightweight Mermaid diagram editor offering hand-drawn styles, live previews, and one-click SVG/PNG exports. It strips away the official Mermaid editor's clutter—no AI prompts or logins—just open, type syntax, and share via URL-encoded links. Built with Vite, CodeMirror, and Mermaid 11, it delivers instant diagrams across 11 types like flowcharts, sequences, and architecture.

Why is it gaining traction?

Unlike the bloated official tool, MermZen focuses on zen simplicity: syntax highlighting, inline errors, command palette (Ctrl+K), and keyboard shortcuts for formatting/exporting. Hand-drawn mode with custom fonts (including CJK support) and themes like forest make diagrams pop in docs or PPTs, while grid backgrounds aid alignment and embeds work zero-dependency via iframe.

Who should use this?

Docs engineers crafting clean GitHub READMEs or profiles, devs diagramming flows in clean GitHub repositories, or presenters needing quick, shareable visuals without setup. Ideal for markdown-heavy workflows like Notion, Obsidian, or clean lightweight daily diagramming.

Verdict

Grab it for fast Mermaid edits—the live demo proves its clean lightweight flow. At 47 stars and 1.0% credibility, it's immature (light tests, solo-maintained) but punches above with bilingual docs and GitHub Pages deploy; fork if you need enterprise hardening.

(187 words)

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