At a glance
- Mermaid is listed under Diagramming, alongside Coggle, draw.io and Eraser.
- Mermaid's lowest paid plan is Plus at A$14 per user per month, billed annually, as of November 14, 2026.
- Mermaid offers a free trial (length not stated).
- Mermaid is available on JetBrains IDEs.
- Mermaid works with GitHub Copilot, Confluence, Jira, Claude and Cursor.
- Mermaid's main features: AI diagram generation, Build with code, Real-time collaboration, MCP server, Mermaid Flow workflows.
- Mermaid's website lists SOC 2 and SSO.
- We haven't confirmed whether Mermaid has a free plan or a public API.
Facts from mermaid.ai, checked November 14, 2026.
The summary writes itself once 5 people have reviewed this tool.
It's built only from what reviewers say: who it's best for, who should think twice, and what comes up again and again.


