Mermaid Chart

Mermaid Chart is ranked #2 of 32 in AI diagram generators on The Geeks Club. It runs on API, Browser extension, Web. There is a free plan. A free trial is offered. Paid plans start at $12/mo.

Mermaid Chart plans and pricing

All plans

Basic Free 3 diagrams · limited AI · 1 team and project mermaid.ai · 1 Oct 2026

Plus $12/mo annually unlimited diagrams · 300 AI credits per year · view and comment collaboration mermaid.ai · 1 Oct 2026

Premium $24/mo annually 2,000 AI credits per year · unlimited free viewer seats · co-editing · SSO mermaid.ai · 1 Oct 2026

Enterprise Not published Premium features · custom contracts · support mermaid.ai · 1 Oct 2026

Compared on AI diagram generators

Free plan: Yes
Mermaid support: Yes
Real-time collaboration: Yes
Diagram import: Yes
Platform: web
Export formats: PNG, SVG, PDF, MMD

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Mermaid Chart

Text-to-diagramming: Mermaid renders diagrams from plain-text syntax and updates the visual when the text changes.
AI generation: Mermaid AI turns natural-language prompts and uploaded PDF, Word, or plain-text files into Mermaid diagrams.
Diagram types: Supported diagram types include flowcharts, sequence diagrams, Gantt charts, ER diagrams, timelines, mind maps, org charts, state diagrams, class diagrams, pie charts, and quadrant charts.
Collaboration: The product supports real-time co-editing, comments, and shareable live links.
Integrations: Official plugins and add-ons cover VS Code, JetBrains IDEs, Cursor, Windsurf, Claude Code, ChatGPT, Confluence, Jira, Google Docs, Microsoft Word, and PowerPoint.
MCP server: Mermaid MCP can validate and render diagrams without authentication, while authenticated users can create, retrieve, update, and manage Mermaid Chart diagrams and projects.
Exports: Mermaid AI can export diagrams as PNG or SVG files.
Security: Mermaid states that it provides secure access controls, encryption, SOC 2 compliance, and SSO.
AI data policy: Content from trial and paid tiers is never used to train Mermaid AI models, while Basic-tier content may be used to improve the services.
Free-tier AI limit: The Basic plan includes 15 AI credits, while Plus includes 300 credits per year and Premium includes 2,000 credits per year.
Audience: Mermaid describes the product as serving developers, data engineers, analysts, technical writers, project managers, designers, and other visual thinkers.
Open-source origin: Mermaid Chart was born from the Mermaid open-source project and was founded by Knut Sveidqvist together with Open Core Ventures.
Support: Enterprise is described as including custom contracts, support, and additional services.
Price from: $12/mo

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Where it ranks on The Geeks Club

Best AI Diagram Generators in 2026#2 of 32

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Sources

mermaid.ai/docs/getting-started/what-is-mermaid· checked 1 Oct 2026
mermaid.ai/docs/getting-started/generate-diagram-w· checked 1 Oct 2026
mermaid.ai· checked 1 Oct 2026
mermaid.ai/open-source/ecosystem/mermaid-chart.htm· checked 1 Oct 2026
mermaid.ai/products/plugins· checked 1 Oct 2026
mermaid.ai/docs/ai/mcp-server· checked 1 Oct 2026
mermaid.ai/docs/guides/mermaid-ai· checked 1 Oct 2026
mermaid.ai/terms-of-use/· checked 1 Oct 2026
mermaid-25331.zendesk.com/hc/en-us/articles/50998076735891-Using-· checked 1 Oct 2026
mermaid.ai/docs/getting-started/create-first-diagr· checked 1 Oct 2026
mermaid.ai/pricing· checked 1 Oct 2026