What is Marmady and how do I use it?

Marmady's a free, no-login web editor for Mermaid diagrams—type code on the left, see live preview on the right, export SVG/PNG/PDF instantly. Just visit the site and start typing.

Is Marmady better than official Mermaid Live Editor?

For speed and clean UI, yes—faster previews, no login, distraction-free. Official one's great for basics, but Marmady shines on performance.

Can Marmady handle large diagrams without lagging?

Absolutely, optimized with debouncing and workers—tested smooth on 200+ node flowcharts.

🛠️ Developer Tools

[Marmady] Cleaner, Faster Mermaid Editor with SVG Export

Tired of sluggish Mermaid editors that demand logins for basic previews? Marmady fixes it all with blistering speed and zero friction, turning diagram chaos into pure flow.

Open Source Beat Apr 16, 2026 4 min read 10 views

Marmady Mermaid editor interface showing live flowchart preview and export options

⚡ Key Takeaways

Marmady delivers instant live Mermaid previews with zero login friction, fixing major pain points in existing editors. 𝕏
Exports to SVG, PNG, PDF are smoothly and high-quality, perfect for docs and presentations. 𝕏
Solo dev focus on speed/simplicity predicts it becoming a dev workflow staple, echoing Graphviz's legacy. 𝕏