Excalidraw

The hand-drawn whiteboard at 130,796 stars and MIT, pushed the same day this record was written

Tier A · StrongToolAppComponent Libraryexcalidraw.com

Excalidraw is a virtual whiteboard that renders everything in a hand-drawn style. That style is a design decision, not a gimmick: a sketchy box reads as provisional, so people argue about the idea instead of the pixel alignment. It is the reason Excalidraw is the default tool for a system diagram that is still being decided. The repository carries 130,796 stars, which makes it one of the most starred design tools anywhere, it is MIT licensed, and it was pushed on 2026-08-30, the day this record was written. MIT matters here. The whole editor can be embedded in your own product with no licence negotiation, which separates it from tldraw. The hosted app at excalidraw.com is a client-rendered shell of about 7 KB, and its /llms.txt returns the same body as a nonsense path, so there is no agent file on that domain.

For an agent

Embed the package when a brief needs a diagram surface: `@excalidraw/excalidraw`. It is MIT, so there is no licence conversation, which is the practical difference from tldraw. Choose it over tldraw when the drawing should look unfinished. The hand-drawn rendering signals that a diagram is still a draft, and that changes how people respond to it. Do not fetch excalidraw.com for information. It is a 7 KB client-rendered shell and its llms.txt returns the same body as a nonsense path. Read the repository instead.

Why it is here. The hand-drawn style is the feature. A rough diagram invites an argument about the idea, and a crisp one invites an argument about the layout.

Install command, framework, licence and component list.

Facts

License: MIT
Pricing: Free, Open source, Freemium
Framework: React
Styling: Vanilla CSS
Distribution: npm package, GitHub repository, Web app / online tool
Platform: Web
Content type: Code, Images / textures / backgrounds
Agent readiness: Readable open source, CLI installable, Client-rendered shell
Accessibility: Unknown
Maturity: Actively maintained
Pricing detail: The editor is free and MIT. A paid hosted tier, Excalidraw Plus, sells collaboration features separately. Embedding the open-source editor costs nothing.
GitHub stars: 130,796
Package: @excalidraw/excalidraw

Components it ships

Agent Canvas Toolbar Context Menu Drag And Drop Color Picker

Notable for

130,796 GitHub stars, MIT
hand-drawn rendering as a deliberate decision
embeddable as @excalidraw/excalidraw
pushed 2026-08-30
site llms.txt is a catch-all

Provenance

Verified 2026-08-30. HTTP 200. https://excalidraw.com/ 200 but only 6,862 bytes; the served text reads "Excalidraw Whiteboard — You need to enable JavaScript to run this app." /llms.txt answers 200 with the same body as a nonsense path, so it is a catch-all. /sitemap.xml 200. GitHub API for excalidraw/excalidraw: 130,796 stars, MIT, pushed 2026-08-30. Listed under Whiteboard on designengineer.tools.

Also in Component Libraries

excalidraw.comTier A