About Excalidraw

Excalidraw is a browser-based whiteboard that renders shapes, arrows and text in a deliberately hand-drawn style, which makes diagrams feel like quick sketches rather than polished slides. It is used for architecture diagrams, wireframes, brainstorming and teaching, and works on an infinite canvas with zoom and pan.

The editor offers rectangles, circles, diamonds, arrows, lines, free-draw and an eraser, along with labeled arrows that stay bound to shapes, image support, shape libraries, dark mode and undo and redo. Drawings export to PNG, SVG or the clipboard, or to an open JSON-based .excalidraw file. The hosted app adds real-time collaboration with end-to-end encryption, offline use as a progressive web app, autosave in the browser and shareable read-only links.

The editor is also published as an npm package under the MIT license, so developers can embed it in their own products and customize it. A separate paid plan, Excalidraw+, is linked from the project for people who want a hosted workspace.