Show HN: Free Mermaid Diagram Editor

# Free Mermaid Live Editor & Diagram Maker Source: [https://moxiedocs.com/mermaid-diagram-editor](https://moxiedocs.com/mermaid-diagram-editor) FREE TOOL Draw diagrams here \- connect GitHub when you want Moxie to generate them from your repo\. Live preview, instant SVG/PNG export, and shareable links in your browser\. When you connect a repository, Moxie generates architecture diagrams from source and refreshes them on every merge\. Tip: Edit the left side and the preview updates live\. Use the snippet buttons or load an example\. Share the URL to collaborate\. Live preview See every change rendered instantly\. No save button, no reloads\. Export anywhere Download clean SVG or high\-resolution PNG with one click\. Perfect for docs, slides, and wikis\. Shareable links Your diagram lives in the URL\. Send the link and others see exactly what you built\. Private by design Everything runs in your browser\. Diagrams never leave your device\. ## Common Mermaid use cases Architecture & system design Flowcharts and C4\-style diagrams that explain how services connect\. API & data flows Sequence diagrams for request lifecycles and integration points\. Data models & schemas ER diagrams and class diagrams for your domain model and database\. Roadmaps & timelines Gantt charts and mindmaps for planning and onboarding\. ## Frequently asked questions Is this Mermaid editor completely free? Yes\. Use it as much as you want\. No sign up, no limits, no watermarks\. Do I need an account or to install anything? No\. Open the page and start editing\. It works on desktop and modern mobile browsers\. Which Mermaid diagram types are supported? All core types: flowchart, sequenceDiagram, classDiagram, erDiagram, gantt, mindmap, pie, state, gitGraph, and more\. The editor uses the latest Mermaid renderer\. Can I use diagrams I make here in my own documentation? Absolutely\. Export SVG or PNG and drop them into READMEs, Notion, Confluence, Google Docs, or any Markdown file\. How do shareable links work? The entire diagram is encoded in the URL query parameter\. Bookmark it, email it, or paste it anywhere\. No server storage involved\. How is this different from mermaid\.live? This editor is lightweight, focused, and built by the Moxie Docs team\. It emphasizes fast exports, clean URLs, and privacy with zero tracking on the tool itself\. Great when you want something simple and embeddable in a dev workflow\. For teams that document code ## Tired of manually maintaining diagrams for your codebase? Draw and export diagrams here\. Connect GitHub when you want Moxie to generate architecture diagrams and searchable docs from your repository and refresh them on every merge\. [See how Moxie keeps docs current](https://moxiedocs.com/workflow)[Start 14\-day trial](https://moxiedocs.com/auth/github?next=/dashboard) Export free above · connect a repo when you want Moxie to keep it accurate