penpot

Penpot is a web-based UI design and prototyping tool that uses SVG as its native format. By adhering to web standards, it enables an open design workflow free from proprietary format lock-in.

• SVG-native output for vendor-independent design data that works with any SVG tool
• Component system for building reusable design elements and design systems
• Prototyping with configurable interactions and transitions
• Real-time collaborative editing for simultaneous team design work
• CSS inspect for direct extraction of CSS values from designs for developer handoff
• Self-hosted deployment via Docker alongside a free cloud offering

Built with ClojureScript and Clojure, Penpot is the only self-hostable alternative to Figma. Its commitment to web standards minimizes the gap between design and development workflows.