The best open source alternative to Graphite is Penpot. If that doesn't suit you, we've compiled a ranked list of other open source Graphite alternatives to help you find a suitable replacement.
Graphite alternatives are mainly UI/UX Design Tools but may also be Online Design Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Graphite.
Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.

Penpot is a browser-based design and prototyping platform built for teams working on digital products. It covers the full design process, from early wireframes through polished UI, interactive prototypes, and developer handoff, without requiring separate tools for each stage. It's self-hostable, so teams with strict data requirements can run it on their own infrastructure.
The core workflow connects designers and developers more directly than most tools. Instead of exporting assets and writing specs separately, Penpot generates 1:1 CSS, HTML, SVG, and JSON directly from the design. What you see in the canvas is what developers get in code, which cuts down on the back-and-forth that usually happens during implementation.
Key capabilities include:
Penpot is a practical alternative to Sketch or Adobe XD for teams that want full control over their tooling. Because it's open source and web-native, there's no per-seat licensing tied to a vendor's pricing decisions, and it works across operating systems without a desktop install.
It suits product teams where designers and engineers work closely together, particularly those building design systems at scale or looking to bring AI tooling into their existing design process.