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Describe it.Diagram it.

Arc Diagram transforms your ideas into stunning architecture diagrams instantly. No sign-up. No learning curve. Just describe your system and watch it come to life.

Three Steps. That's It.

No complex tools to learn. No accounts to create. Just pure productivity.

01

Describe

Type a natural language description of any system, architecture, or workflow.

02

Generate

AI instantly creates a structured diagram with nodes, connections, and clean layout.

03

Refine

Drag, edit, connect, or ask AI again to update. Export as PNG or JSON when ready.

Everything You Need

A complete diagram toolkit — powerful enough for professionals, simple enough for everyone.

AI-Powered Generation

Describe any system in plain English and watch it transform into a beautiful architecture diagram in seconds.

Edit with AI

Refine your diagrams iteratively. Ask AI to add nodes, restructure, or modify — it understands your current diagram.

Drag, Edit & Connect

Full interactive canvas — drag nodes, double-click to rename, draw connections, or delete. Total control.

Auto Layout

One-click Dagre-powered layout instantly organizes your nodes into a clean, hierarchical structure.

Export Anywhere

Download your diagram as a high-resolution PNG image or structured JSON data for use in docs and presentations.

Autosave & Restore

Your work is automatically saved to your browser. Come back anytime and pick up right where you left off.