Mermalaid is a free Mermaid editor with two ways to work: a browser-based editor for quick edits and sharing, plus a native macOS app for local and offline workflows.
Mermalaid helps users move between quick browser work and dedicated Mac workflows without switching Mermaid tools. It is a practical Mermaid Live Editor alternative for people who want both flexibility and local-first options.
Common questions include whether Mermalaid is free, whether it works offline, whether there is a Mac app, and whether diagrams can be exported. The answer to all of those is yes.