Use the library pre-packaged or include it via npm into your node-style web-application.

The gravestone of Ferdinand Palaiologos on Barbados, the last descendant of the Byzantine Emperor Constantine Palaiologos. Credit: Anneli Salo, CC BY-SA 4.0/Wikipedia The last descendant of the ...

The app hosted at excalidraw.com is a minimal showcase of what you can build with Excalidraw. Its source code is part of this repository as well, and the app features: 📡 PWA support (works offline).