MERMAIDEDITOR vs. the field

An honest comparison. We use the others too — here is when each one wins.

FeatureMERMAIDEDITORMermaid Livedraw.ioLucidExcalidraw
Diagrams as code~~
All 12 Mermaid types~~
No login required
Works offline~
i18n UI (8 langs)~
Real-time collabPro~
AI prompt → diagramPro~
Open source friendly
Page weight< 90 KB~ 1 MB~ 4 MB~ 6 MB~ 800 KB
Best forMermaid + contentquick sandboxGUI diagramsenterprisewhiteboarding

✓ first-class · ~ partial · ✗ not supported · Pro = paid plan · Last reviewed Apr 2026.

In their own words

When to pick something else

Use Mermaid Live when…

You need a no-config sandbox to test a snippet. It's the canonical playground from the Mermaid project itself.

Use draw.io when…

Your diagram is mostly drag-and-drop, with Mermaid only as one block. The freeform canvas is the strength.

Use Lucid when…

You're in an enterprise that already pays for it and needs SOC 2 + admin SSO. The collaboration is great.

Use Excalidraw when…

You want hand-drawn whiteboarding for a meeting. It's the wrong tool for production docs.