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