Mermaid Chart
Mermaid Chart
Write codeDescribe in words
Commercial editor for Mermaid from Mermaid Chart Inc., the company behind the open-source Mermaid.js: you write Mermaid code and the diagram renders as you type, or prompt Mermaid AI.
- How you draw
- Code, Words
- Free for work
- Not stated
- Free plan
- Paid from
- $10/user/mo
- Plus, billed yearly
- Exports
- SVG, PNG, PDF
- Runs on
- Web
- Made by
- Mermaid Chart
- United States
Good to know
- Diagrams as code: Mermaid
Where it stands among 24
Each fact with every app's answer. Mermaid Chart is outlined.
Main way to draw
Write code
Sketch by hand 5
Drag shapes 13
Write code 4
Describe in words 2
Free for work use
Not stated
Free version allows work use 10
Exports SVG
On every plan
On every plan 15
On paid plans 5
Draws from a text prompt
On every plan
On every plan 14
On paid plans 3
No AI drawing 1
Not stated 6
Diagram code
Mermaid
Works offline
Not stated
Open source
Partly
Plans and prices
In USD, per month, as listed by Mermaid Chart. Checked 17 October 2026.
| Plan | Billed yearly | Billed monthly | Seats | Notes |
|---|---|---|---|---|
| Free | Free plan3 diagrams, limited diagram size, 15 AI credits | Work use: not stated | ||
| Plus | $10/mo$120 a year | Not stated | per user | Unlimited diagrams, 300 AI credits a year, view and comment collaboration. |
| Premium | $20/mo$240 a year | Not stated | per user | Real-time co-editing, unlimited free viewers, SAML SSO; 2,000 AI credits a year (the pricing grid says unlimited). |
- Free for work use
- Not statedNot stated
- One-time licence
- Subscription only
- Enterprise
- Price on request
How you make a diagram
- Ways to draw
- Code, Words
- AI from a text prompt
- YesYes Mermaid AI on every plan
- AI limits
- 15 credits on Basic, 300 a year on Plus, 2,000 a year on Premium The pricing grid shows Premium as unlimited; Basic's credit period isn't stated
- Diagram code
- Mermaid Live: the diagram renders as you edit the code; a visual editor too
- Diagram types
- Flowcharts, Sequence, ER / database, UML, Mind maps, Cloud architecture, Org charts Class, state, C4, Gantt, timeline, Git graph and more; architecture icons are generic or Iconify
What you get out
- SVG
- YesYes Free-plan availability not stated
- PNG
- YesYes
- YesYes
- Visio (VSDX)
- Not statedNot stated Not stated
- Watermark on free exports
- Not statedNot stated Not stated
- Imports
- Mermaid Mermaid code; no Visio, Lucidchart, draw.io, Gliffy or CSV import stated
Where it runs and where files live
- Apps
- Web
- Works offline
- Not statedNot stated Not stated
- Open source
- PartlyPartly Mermaid.js is open source; the Mermaid Chart editor is commercial
- Self-hosting
- Not statedNot stated Mermaid.js runs anywhere; self-hosting the Mermaid Chart editor isn't stated
- Where diagrams are stored
- Maker's cloud
- Works inside
- Confluence, Jira, Google Workspace, VS Code, GitHub Google Docs add-on; GitHub via Copilot
- Live co-editing
- Paid plansPaid plans Co-editing on Premium and Enterprise
- API
- YesYes Open-source Mermaid.js renders from code; MCP server creates and manages diagrams; plan mapping not stated
Who you're trusting
- Company
- Mermaid Chart Inc. Founded by Mermaid creator Knut Sveidqvist with Open Core Ventures
- Owned by
- Not stated Open Core Ventures backed the company; no parent company named
- Based in
- United States San Francisco address on its Atlassian vendor listing
- Launched
- 2023 Mermaid Chart officially launched in March 2023; the company launched in autumn 2022
- Security reports
- SOC 2 Type not stated
- Single sign-on
- Paid plans SAML 2.0 on Premium and Enterprise
- Data residency
- Not stated None stated
Where we recommend it
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