penpot

Penpot provides a web‑based environment for creating, prototyping, and managing UI designs that can be accessed directly in a browser or deployed on private servers. It stores assets in open standards such as SVG, CSS, HTML and JSON, allowing designers to export code‑ready files and developers to read designs as code. Real‑time collaboration lets multiple team members work on the same project simultaneously, while built‑in design tokens serve as a single source of truth for styling across a product.

The platform is self‑hostable and released under the MPL‑2.0 license, giving organizations full control over their design infrastructure and compliance requirements. Its plugin system and open API enable automation, integration with existing tools, and AI‑driven workflows. Features like CSS Grid and Flex Layout support responsive interface design from the outset.

Penpot is aimed at cross‑functional product teams that need a scalable, open‑source solution for design systems, UI prototyping, and seamless hand‑off to development, without relying on proprietary services or subscription models.