Mermaid Premium
The Mermaid Premium plan costs $20 per user / month, billed annually ($240 a year).
What the plan includes
Everything in Plus, plus 2,000 AI credits per year, unlimited free viewer seats, and unlimited teams and projects.
As stated on mermaid.aiThe plans either side of it
- Plus$10 per user / month, billed annually ($120 a year)one below
Unlimited diagrams with no size limit and 300 AI credits per year, for individuals who diagram often.
- EnterpriseCustomone above
Everything in Premium, plus SSO, custom contracts and invoicing, IP management, user consolidation and a dedicated customer success manager.
What else costs about this much
| Tool | Starts at | Free plan |
|---|---|---|
| GroupMap | $20 a month | No |
| DrawSQL | $19 a month | Yes |
| Scribblar | $19 a month | No |
| EasyRetro | $23 a month | Yes |
| Klaxoon | $24.90 a month | Yes |
| BitPaper | $15 a month | Yes |
Each tool’s own starting price, within a quarter of what this plan costs. A starting price is not the same plan, so read what each one includes before weighing them against each other.
Mermaid Premium questions
How much is the Mermaid Premium plan?
The Mermaid Premium plan costs $20 per user / month, billed annually ($240 a year). Everything in Plus, plus 2,000 AI credits per year, unlimited free viewer seats, and unlimited teams and projects.
What is the difference between Mermaid Plus and Premium?
Plus costs $10 per user / month, billed annually ($120 a year) and gives you unlimited diagrams with no size limit and 300 AI credits per year, for individuals who diagram often. Premium costs $20 per user / month, billed annually ($240 a year) and gives you everything in Plus, plus 2,000 AI credits per year, unlimited free viewer seats, and unlimited teams and projects.
Is it worth moving from Premium to Enterprise?
That depends on what you need. Enterprise costs Custom and adds everything in Premium, plus SSO, custom contracts and invoicing, IP management, user consolidation and a dedicated customer success manager. The listing is what each plan states; neither plan is graded on its own.
Does Mermaid have a free plan or a trial?
Yes. Basic plan: 3 diagrams (the comparison table on the same page says up to 6) with a limited diagram size, 15 AI credits, one team and project, and co-editing and external sharing. There is also a free trial of Plus or Premium; the vendor does not state how long it lasts.
When was this checked?
Oct 6, 2026, against https://mermaid.ai/pricing. Vendors change prices and plans without notice, so confirm on their site before you buy.