Mermaid Chart

Mermaid Chart grows out of Mermaid.js, the open-source text-to-diagram syntax that developers already use in READMEs, wikis, and documentation pipelines. The platform keeps that foundation: you can write Mermaid syntax and watch the diagram lay itself out, click a node to jump to its code, or click code to locate the matching shape on the canvas. That two-way link between text and visual makes large diagrams far easier to maintain than drag-and-drop only tools.

The AI layer removes the syntax barrier for people who do not want to memorize grammar. You can type a prompt, speak it, paste a transcript, or upload a document, and the assistant drafts a diagram you then shape. It also suggests the diagram type that fits the problem — sequence, Gantt, ER, timeline, mind map, and so on — rather than forcing you to pick first. Because context is held across the conversation, the diagram evolves as your thinking does.

Collaboration and integration round out the product. Teams co-edit in real time and share a live link that does not require a login, while diagrams render inside IDEs, docs, and wikis, and an MCP server lets tools like Claude, VS Code, and Cursor generate, validate, and render diagrams directly. Security features including access controls, encryption, SOC 2 compliance, and SSO target enterprise adoption, and the project stays closely tied to its open-source roots.