Mermaid Chart

Mermaid Chart is an AI-assisted diagramming tool built on the open-source Mermaid project. Its pitch is that people already think in systems and can now diagram them just as fast: prompt inside the canvas, drop in a document or write it in code and watch the diagram build. It says it is trusted by over 5M people, and that every diagram made keeps Mermaid's open-source roots growing, with the GitHub project showing over 90,000 stars.

Mermaid AI goes from input to diagram before the thought is finished, whether the input is typed, spoken or uploaded as a document, and it suggests the shape that fits, such as a flowchart, timeline, requirement diagram or sequence diagram. A prompt inside the code panel or canvas changes the diagram in place, with no context-switching or syntax hunting. Starter prompts include planning a project, designing a system or a database, mapping a team, showing system interactions and modelling object structures.

Diagrams live where teams work: they can be rendered in an IDE, embedded in docs and wikis, or generated straight from Claude, VS Code and Cursor through the MCP server. Teams can co-edit live and share with one link, with no login required for viewers, and enterprise controls include secure access controls, trusted encryption, SOC 2 compliance and SSO that fits an existing setup. No pricing is published on the captured page.