ConfigsApr 6, 2026·2 min read

Excalidraw — AI-Friendly Whiteboard & Diagramming

Open-source virtual whiteboard for hand-drawn style diagrams. Export to SVG/PNG, real-time collaboration, and AI integrations for generating diagrams from text descriptions. 90,000+ stars.

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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

Visit excalidraw.com — start drawing immediately, no signup needed.

Self-host:

git clone https://github.com/excalidraw/excalidraw.git
cd excalidraw && npm install && npm start

Generate diagrams with AI:

Prompt: "Draw a system architecture diagram with a React frontend,
         Node.js API, PostgreSQL database, and Redis cache"
Intro

Excalidraw is an open-source virtual whiteboard for creating hand-drawn style diagrams with 90,000+ GitHub stars. It is the most popular diagramming tool in the developer community — used for system architecture, flowcharts, wireframes, and brainstorming. Real-time collaboration, export to SVG/PNG, and a growing ecosystem of AI integrations make it perfect for documenting AI systems and workflows. Best for developers and teams who need quick, beautiful diagrams without the overhead of Visio or Figma. Works with: any browser, self-hostable. Setup time: instant.

Why Developers Love It

Hand-Drawn Style

Diagrams look informal and approachable — perfect for architecture discussions, not formal documentation.

Instant Start

No account, no login, no install. Open excalidraw.com and start drawing.

Real-Time Collaboration

Share a link and draw together:

https://excalidraw.com/#room=abc123

Developer-Friendly Features

Feature Description
.excalidraw files JSON format, git-friendly
SVG/PNG export Embed in docs, READMEs, PRs
Dark mode Native dark theme
Libraries Reusable component libraries
Embeddable React component available

AI Diagram Generation

Use with Claude Code or ChatGPT to generate diagrams:

"Create an Excalidraw diagram showing:
- User sends request to API Gateway
- Gateway routes to Auth Service and Product Service
- Both services connect to PostgreSQL
- Product Service uses Redis cache"

AI generates .excalidraw JSON that opens directly in Excalidraw.

Common Diagram Types

Type Use Case
System architecture Microservices, cloud infra
Flowcharts Business logic, algorithms
Sequence diagrams API call flows
Wireframes UI mockups
ER diagrams Database schema
Mind maps Brainstorming, planning

React Component

import { Excalidraw } from "@excalidraw/excalidraw";

function DiagramEditor() {
  return (
    <div style={{ height: "500px" }}>
      <Excalidraw />
    </div>
  );
}

VS Code Extension

Edit .excalidraw files directly in VS Code with the Excalidraw extension.

Key Stats

  • 90,000+ GitHub stars
  • No signup required
  • Real-time collaboration
  • SVG/PNG/JSON export
  • React component + VS Code extension

FAQ

Q: What is Excalidraw? A: An open-source virtual whiteboard for creating hand-drawn style diagrams — system architecture, flowcharts, wireframes, and more — with real-time collaboration.

Q: Is Excalidraw free? A: Yes, fully open-source under MIT. Excalidraw+ (paid) adds team features.

Q: Can AI generate Excalidraw diagrams? A: Yes, Claude and GPT-4 can generate .excalidraw JSON files from text descriptions.

🙏

Source & Thanks

Created by Excalidraw. Licensed under MIT.

excalidraw — ⭐ 90,000+

Thanks for making diagramming effortless for developers.

Discussion

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