Penpot

Penpot is the world's first open-source design tool built on open standards — SVG, CSS, and HTML — so every design file is readable without proprietary software. Made by Kaleidos in Madrid, Spain, it covers the full design workflow: vector editing, component libraries, responsive prototyping, and CSS-ready developer handoff, all running in the browser.

Teams use penpot.app (EU-hosted cloud) or deploy a self-hosted instance via Docker in minutes. Native design tokens link design decisions directly to code variables, eliminating the back-and-forth of traditional handoff. Developers inspect real CSS values, copy HTML snippets, and export assets — no separate handoff tool required.

Key benefits:

• Open standards (SVG/CSS/HTML) — files are vendor-neutral and parseable by any tool
• Design tokens as a native feature linking design decisions directly to code variables
• Real-time collaboration with multiplayer editing, comments, and shared cursors
• Prototyping with transitions, interactions, scroll behaviour, and presentation mode
• Developer inspect mode with copy-paste CSS, HTML, and asset export
• Self-hosting via Docker for complete data sovereignty on your own infrastructure
• Free and open-source under AGPL — no per-seat pricing in the community edition
• Component libraries with master components, overrides, and nested instances

Penpot's cloud service is hosted in the EU with GDPR-compliant data practices. As a fully open-source project (AGPL) maintained by Kaleidos in Spain, self-hosting teams keep all design data on their own servers — no telemetry, no lock-in, and no dependency on U.S. design SaaS infrastructure.

Used by hundreds of thousands of designers and developers worldwide, with 40,000+ GitHub stars and an active community that includes contributors from across Europe.