Moxie Docs has released a free, browser-based Mermaid editor for creating diagrams, flowcharts, and architecture visualizations. The tool provides a live preview, instant SVG/PNG export, and shareable links for collaboration. It supports all core Mermaid diagram types, including flowcharts, sequence diagrams, class diagrams, ER diagrams, Gantt charts, mindmaps, pie charts, state diagrams, and git graphs. The editor emphasizes fast exports, clean URLs, and privacy with zero tracking.

Users can create and edit diagrams without signing up or installing anything. The entire diagram is encoded in the URL query parameter, allowing users to bookmark, email, or paste the link anywhere. Diagrams can be exported as SVG or PNG files for use in READMEs, Notion, Confluence, Google Docs, or any Markdown file.

The Mermaid editor is part of Moxie Docs' suite of free tools designed to illustrate feature sets before commitment. The company also offers tools for ADR, AGENTS.md, and LLMs. While the Mermaid editor is free to use, Moxie Docs provides a paid service that generates architecture diagrams and searchable docs from a connected Git Hub repository, refreshing them on every merge.