Mermaid pricing
4 plans read from mermaid.js.org
BasicFree Up to 6 diagrams · Limited diagram size (60) · 15 AI credits · 1 team and project creation Read 11 Oct 2026 · mermaid.ai
Plus$10 a month Billed AnnuallyUnlimited diagrams · Limitless diagram size · 300 AI credits per year Read 11 Oct 2026 · mermaid.ai
Premium$20 a month Billed AnnuallyUnlimited diagrams · Limitless diagram size · 2,000 AI credits per year · Unlimited viewer seats · Unlimited teams and projects Read 11 Oct 2026 · mermaid.ai
EnterprisePriced on request Billed AnnuallyCustom pricing · Unlimited diagrams · Limitless diagram size · Unlimited AI credits · SSO · Custom contract and invoicing · IP management · Dedicated Customer Success Manager Read 11 Oct 2026 · mermaid.ai
In short
- Mermaid has a free plan (Basic).
- A free trial is offered.
- Paid plans published: 2, from $10 a month.
- 1 plan is priced on request (Enterprise).
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| Sparx Enterprise Architect | — | Yes | Yes |
| SmartDraw | $0.75/mo | No | Yes |
| Creately | — | Yes | Yes |
| Eraser | $15/mo | Yes | No |
| draw.io | — | Yes | No |
| Cacoo | $6/mo | Yes | Yes |
| Structurizr | £25/mo | Yes | Yes |
| Gluu | €0.17/mo | No | Yes |