From description to diagram in seconds

Turn everyday language into shareable UML diagrams – powered by Google Gemini & rendered with Mermaid.js.

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Diagrams generated

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Average rating

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Countries onboard

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AI-generated

Gemini writes valid Mermaid – hit “Regenerate” until perfect.

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Collaboration

Keep diagrams private or share a read-only link.

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Adaptive theme

Light & dark – powered by your tokens.

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Projects

Unlimited workspaces to keep things tidy.

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Privacy-first

Your diagrams sit in your DB; we never peek.

Blazing fast

Pan, zoom & preview instantly – zero wait.

Where teams use Genie

Architecture reviews

Replace whiteboard photos with crisp class maps.

Pitch decks

Explain systems to non-devs without lorem-ipsum UML.

API design

Model data contracts before writing a single line of code.

Onboarding

New hires learn your stack with interactive diagrams.

Documentation

Generate UML from existing docs – no manual work.

Design systems

Visualize component hierarchies and relationships.

Built with modern tech

Next 15
Vercel
MongoDB Atlas
Mermaid 11
Express.js
Node.js
TypeScript
Google AI
Tailwind CSS
Shadcn UI

Loved by devs

MermaidGenie slashed our onboarding docs from pages to one neat diagram!

Linh N.

Frontend Lead

We draft flows in meetings and share links instantly. Huge time-saver.

Ethan P.

Product Manager

Zero learning curve. Copy Mermaid straight into markdown – done.

Sara A.

Dev-Rel

Pricing

🏷️ Every tier free during beta. No credit card required.

Free

$0

  • Unlimited charts
  • AI · 50 / mo
  • Public links

Pro

$7

  • Unlimited AI
  • Version history
  • Export PNG / SVG
  • Priority support

Team

$29

  • All Pro
  • Workspace roles
  • SSO
  • Early features

Roadmap

Q3 ’25

Sequence diagrams

Q4 ’25

Real-time collaboration

Q1 ’26

ERD & database sync

Q2 ’26

VS Code extension

FAQ

Open-source friendly

MermaidGenie’s core libraries are MIT-licensed. Contribute on GitHub or fork the Gemini prompt templates for your own stack.

Stay in the loop

Monthly release notes • no spam

Ready to diagram?

Sign in & create unlimited diagrams – free while in beta.