PrivyMermaid

Local-first Mermaid diagram editor

Overview

PrivyMermaid is a local-first Mermaid diagram editor Chrome extension. Edit and preview Mermaid diagrams in your browser, with optional local Ollama integration for "Ask" and "Fix Diagram" / "Refactor" AI assistance.

Features

  • Diagram editing — Create, edit, and save Mermaid diagrams
  • Local rendering — Uses bundled Mermaid library for offline rendering. No CDN required.
  • AI assistance (optional) — Connect to local Ollama for diagram fix and refactor
  • Context menu — "Open in PrivyMermaid", "Render selection in PrivyMermaid"
  • Custom prompt templates — Editable Fix/Refactor prompts

Privacy Commitment

PrivyMermaid does not collect, store, or transmit any personal data to external servers. Diagrams and settings are stored only in chrome.storage.local. AI processing happens only on your local Ollama instance.

Privacy Policy