Pricing
Mermaid Chart pricing
As mermaid.ai lists them, read 1 Oct 2026. The maker's own page has the final word.
| Plan | Billed and limits | Price |
|---|---|---|
| Basic | 3 diagrams · limited AI · 1 team and project | Free |
| Plus | annually · unlimited diagrams · 300 AI credits per year · view and comment collaboration | $12 a month |
| Premium | annually · 2,000 AI credits per year · unlimited free viewer seats · co-editing · SSO | $24 a month |
| Enterprise | Premium features · custom contracts · support | On request |
From mermaid.ai, mermaid.ai, mermaid.ai.