Excalidraw is an open-source virtual whiteboard for creating hand-drawn style diagrams, wireframes, and sketches. It provides an infinite canvas, real-time collaboration, end-to-end encryption, and a React component library for embedding in custom applications.
Scanned 6/8/2026
Install via CLI
openskills install agentskillexchange/skills---
name: "Excalidraw Virtual Whiteboard and Diagram SDK"
slug: "excalidraw-virtual-whiteboard-diagram-sdk"
description: "Excalidraw is an open-source virtual whiteboard for creating hand-drawn style diagrams, wireframes, and sketches. It provides an infinite canvas, real-time collaboration, end-to-end encryption, and a React component library for embedding in custom applications."
github_stars: 119886
verification: "security_reviewed"
source: "https://github.com/excalidraw/excalidraw"
category: "Image & Creative Automation"
framework: "Multi-Framework"
tool_ecosystem:
github_repo: "excalidraw/excalidraw"
github_stars: 119886
npm_package: "@excalidraw/excalidraw"
npm_weekly_downloads: 291272
---
# Excalidraw Virtual Whiteboard and Diagram SDK
Excalidraw is an open-source virtual whiteboard for creating hand-drawn style diagrams, wireframes, and sketches. It provides an infinite canvas, real-time collaboration, end-to-end encryption, and a React component library for embedding in custom applications.
## Installation
Use the upstream install or setup path that matches your environment:
- Use npm or yarn to install the package.
- npm install react react-dom @excalidraw/excalidraw
- yarn add react react-dom @excalidraw/excalidraw
Basic usage or getting-started notes:
- **Note:** following instructions are for installing the Excalidraw [npm package](https://www.npmjs.com/package/@excalidraw/excalidraw) when integrating Excalidraw into your own app. To run the repository locally for d...
- bash
- # or
- Source: https://github.com/excalidraw/excalidraw
- Extracted from upstream docs: https://raw.githubusercontent.com/excalidraw/excalidraw/HEAD/README.md
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/excalidraw-virtual-whiteboard-diagram-sdk/)
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Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.