Penpot

Penpot is an open-source, browser-based design and prototyping platform for digital product creation and code collaboration. It features vector editing, CSS Grid and Flexbox layouts, reusable components, variants, and native design tokens. Teams can build interactive prototypes with defined triggers, actions, and transitions, and collaborate in real time through multiplayer editing and comments. In addition, Penpot includes developer tools such as a properties inspector and a code inspector for generating CSS styles and SVG markup, with options for cloud hosting or self-hosted deployment.