AI-Powered Diagram Generator

One Prompt.
Two Ways to Visualize.

Instantly generate structured Logic Diagrams for documentation, or switch to Pro Vision to create stunning 4K Infographics for your next presentation.

No credit card required
Free tier forever
Pro 4K Infographic
Standard Logic Diagram
Draft Mode
Pro Vision

Choose Your Engine

Two powerful visualization tools, one simple interface. Pick the right engine for your use case.

Free

The Logic Engine

Powered byMermaid
Best forDevelopers, Technical Docs, Wikis
  • Fully Editable Text & Nodes
  • Version Controllable
  • Instant Export to SVG/Code
  • Unlimited Generations
Pro

The Vision Engine

Powered byAdvanced AI
Best forPitch Decks, Marketing, Social Media
  • Photorealistic & 4K Resolution
  • Deep Contextual Reasoning
  • Commercial License Available
  • Priority Generation
Pro Features

Why Upgrade to Pro Vision?

Stop presenting boring boxes. Start telling visual stories.

Boardroom-Ready Aesthetics

Don't spend hours aligning shapes in PowerPoint. Our Pro engine understands design principles, lighting, and layout. It generates 4K resolution images (3840x2160) ready to drop directly into your slides or reports.

1

Real-World Awareness

Search Grounding

"Map the current supply chain of Apple." Unlike standard drawing tools, our Pro AI connects to the web. It researches the latest data, facts, and relationships before it draws, giving you accurate, up-to-date infographics in seconds.

2

Complex Reasoning

Visualize the invisible. Ask for abstract concepts like "The emotional journey of a customer buying a house" or "The friction points in our Q3 sales strategy." The AI analyzes the sentiment and visualizes the nuance.

3

From Idea to Masterpiece in 3 Steps

Our "Draft → Render" workflow ensures you only pay for the final, polished result.

01

Describe & Draft

Type your idea. Our lightweight AI instantly sketches the logic structure for you to review.

Cost:Free
02

Refine

Edit the text, adjust the flow, or add details using our simple chat interface.

Cost:Free
03

Render in 4K

Hit the "Pro Render" button. Our AI engine takes your draft and paints a high-fidelity, professional visualization.

Cost:1-4 Credits

Simple Credit-Based Pricing

Pay for the compute you use. No hidden fees.

Developer
$0/ month
  • Unlimited Standard Diagrams
  • Mermaid Code
  • Standard Support
  • Public Gallery
Best Value
Starter
$15/ month
  • 100 Pro Credits / month
  • 4K Image Resolution
  • Private Mode
  • All Draft Mode Features
Professional
$49/ month
  • 400 Pro Credits / month
  • Commercial License
  • Priority Generation
  • All Starter Features

Need more? Top up credits anytime: $15 for 100 Credits, $35 for 300 Credits, or $60 for 600 Credits

Frequently Asked Questions

Everything you need to know about Diagram-Generator.

AI Diagram Generator | Create Diagrams Online Free