Studio

Compatibility Lab

This first build focuses on real Mermaid source. Paste a diagram, choose a target preset, and use the conservative checks to harden the output before you ship it.

Mermaid source

Preview ready

Rendered preview

Mermaid 11 renderer

Paste Mermaid to preview the diagram.

Diagnostics

3 checks

warning

Theme and init directives are brittle in conservative targets

Some publishing surfaces sanitize or ignore init blocks. MermaidPen can strip them for a safer export.

Repair available in this build
note

Interactive click directives may be disabled

Treat click actions as an enhancement, not a guaranteed cross-platform behavior.

warning

Lowercase end inside a node label is risky

Mermaid flowcharts treat end as a control keyword in some contexts. Capitalizing it avoids a class of hard-to-debug parse failures.

Repair available in this build