May 24, 2022 by The SixtyFPS Team

Slint Funding & Hiring

We're delighted to announce that we've secured funding for SixtyFPS GmbH, the company behind Slint. We've raised a six-digit seed funding to expand our team: For product development, sales, and business development.

Slint is a fresh approach to GUI development written in Rust, but with bindings to C++ and JavaScript as well, providing a full UI for the full range of systems from micro-controllers all the way up to workstations. Slint is available as open source, as well as under a commercial license.

The investment was led by a privately held company in Germany. We know each other well, and they believe that we have the right ingredients to make Slint a successful business.

We're a small, engineering-driven company without any red tape, a direct feedback culture, and a small but experienced team of developers. Would you like to work on a a product that covers low-level graphics rendering, compiler design - all the way up to widget and UI design? Are you comfortable working in an Open Source environment? Apply now at our new careers page.


Slint is a declarative GUI toolkit to build native user interfaces for desktop and embedded applications written in Rust, C++, JavaScript, and Python. Find more information at or check out the source code at