LetDraw

No install · No tracking · Works offline

The drawing & diagram tool that runs in your browser

A privacy-friendly drawing & diagramming tool that runs in your browser. No install, no tracking, works offline.

Get started Open the app

What can you do?

A quick look at LetDraw's standout features.

AI diagramming → Generate diagrams from text, an image, or your voice; explain/document an existing diagram with AI. Diagram-specific elements → Editable tables, syntax-highlighted code blocks, quick charts, and math/LaTeX. Smart connector → Auto-routed arrows that steer around other shapes. Export & code → PNG / SVG / PDF, WebM process recording, and diagram → Mermaid/D2 code. Collaboration → Live collaboration and link sharing. Self-hosting → Run LetDraw and these docs yourself with Docker.

Get started in three steps

No setup needed; start drawing in your browser right away.

1

Open the app

Go to letdraw.com — you start with a blank canvas, no account needed.

2

Create your diagram

Draw shapes from the toolbar, or generate one from a prompt in the AI menu.

3

Share or export

Invite people live with a link, or download as PNG / SVG / PDF.

Tip. All diagrams are processed in your browser. No drawing is sent to a server by default; collaboration and cloud save are optional.

Programmatic drawing with MCP

Call LetDraw from your own tools; generate diagrams from code.

terminal · mcp-config Copy

# Add the letdraw MCP server
claude mcp add letdraw -- npx "@letdraw/mcp"

# then, in a client:
{
  "tool": "create_diagram",
  "prompt": "user sign-up flow, 4 steps",
  "format": "mermaid",
  "width": 1200
}

Note. A personal API key is required. Create one on the Account → API keys page.