Free AI Diagram Generator
Create Professional Diagrams Instantly
Transform your ideas into presentation-ready infographics with our free AI diagram generator. Our agent searches the web, grounds the facts, and renders a stunning visual in a minute. Our agent can generate any diagram types you want including flowcharts, ER diagrams, sequence diagrams, mind maps, etc. Our AI diagram maker delivers professional results from simple text prompts — no design skills required.
5 free credits · No credit card required
The agent writes the diagram while you watch.
Describe what you want to visualize — a topic, a process, a market. Our agent searches the web for fresh data, plans the layout, and renders a presentation-ready infographic in under a minute. For docs or git, the same chat can switch to Mermaid mode and output editable code.
- Context awareUnderstands relationships, data flows, and structure across any topic — not just engineering systems.
- Smart refinementSay "make the chart navy" or "add the latest quarter" — no design tools required.
- Search groundedPulls live data for "current Apple supply chain" or "AWS us-east-1 outage map".
Sixteen primitives — from flowcharts to Sankeys, all in one editor.
Flowchart
Sequence
Class
State
Gantt
Timeline
Mind map
Network
ER
UML
Venn
Sankey
AWS
Lewis
Pro
Org chart
Pro
Quadrant
Pro
Funnel
ProClick any card to start creating your diagram
Stop presenting boring boxes. Start telling visual stories.
Boardroom-ready aesthetics
Eleven first-class styles — Modern Tech, Editorial, Blueprint, Hand-drawn, 3D Isometric. Each preserves your underlying logic; only the skin changes.
Real-world awareness
Pro Mode connects to live web data. Ask for "current Apple supply chain" or "AWS us-east-1 outage map" — Diagram-Generator researches, then renders.
- fetched 12 sources · 3.1s
- extracted 8 entities · suppliers, OEMs
- resolved 14 links · sourcing routes
- rendered Sankey · 4K Modern Tech
Editable Mermaid forever
Every diagram exports as Mermaid, Markdown, SVG, PNG, or PDF. Version it in Git. Drop it in your docs. Edit by code or by chat.
graph LR
Client --> API[/oauth/token]
API --> Auth[Auth Core]
Auth --> Redis[(Redis Cache)]
Auth --> 2FA{2FA Challenge}
2FA -->|verified| Audit[Audit Log]Talk to the agent
"Make the database red." "Add a fraud-check between checkout and payment." "Re-render this in Blueprint at 4K." Natural language — no panel hunting.
Logic → Graphic. Refine before you render.
Cheap iteration in Logic Mode. Spend Pro credits only when the structure is final.
Type your idea — get a structured diagram in Logic Mode.
Edit text, adjust the flow, or chat with the agent until it's right.
Hit Pro Render. Get a high-resolution, presentation-ready visual.
“I shipped a 12-step compliance flow during a meeting. The PM thought it was a Figma file.”
“Pasted my PRD, got an architecture diagram. The whole team thought I had a designer.”
“It rendered our supply chain in Sankey form with current sourcing data. I almost cried.”
AI Diagram Generator Pricing - Start Free Pay for the compute you use. No hidden fees.
- 5 Pro Credits (one-time)
- Logic Mode (1 credit each)
- All 16+ Diagram Types
- Max Resolution: 2K
- Watermark on Pro Mode
- 100 Pro Credits/month
- Max Resolution: 2K
- No Watermark
- Commercial License
- Private Gallery
- 400 Pro Credits/month
- Max Resolution: 4K
- 4K Generation (6 credits)
- Priority Support
- All Starter Features
Complete Feature Comparison
See everything that's included in each plan
| Feature | FreeDeveloper | StarterBESTBest Value | ProPower Users |
|---|---|---|---|
| Price | $0 | $9/month | $35/month |
| Creditsℹ️ | 5 (one-time) | 100/mo | 400/mo |
| 1K Generationℹ️ | 1 credit | 1 credit | 1 credit |
| 2K Generationℹ️ | 3 credits | 3 credits | 3 credits |
| 4K Generationℹ️ | — | — | 6 credits |
| Logic Modeℹ️ | 1 credit each | 1 credit each | 1 credit each |
| DGAI Agentℹ️ | — | 1 credit/query | 1 credit/query |
| AI Text/ASCII Diagrams | |||
| Editable Mermaid Code | |||
| Max Resolutionℹ️ | 2K | 2K | 4K |
| Watermarkℹ️ | Yes | No | No |
| Ownershipℹ️ | Diagram-Generator | You | You |
| Galleryℹ️ | Public | Private | Private |
| Commercial Licenseℹ️ | |||
| Diagram Typesℹ️ | All 16+ | All 16+ | All 16+ |
| Diagram Stylesℹ️ | All 10+ | All 10+ | All 10+ |
| Supportℹ️ | Community | Standard | Priority |
Frequently Asked Questions know.
Everything you need to know about Diagram-Generator.
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