slint-ui/slint
★ 24,222 stars
Covered in week 2026-W26 · the 2026-06 report
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
What slint is
Slint is an open-source declarative GUI toolkit for building native user interfaces for embedded systems, desktops, and mobile platforms.
From the repository README · read it on GitHub →
Transcript
Qt commercial costs $5,500/year per developer. Slint does it free. This Rust toolkit builds smooth native interfaces for embedded devices and desktops across C++, Rust, and JavaScript. A live visual designer previews your UI the instant you type. At under 300KB binary footprint, it runs on tiny microcontrollers where Qt can't even load. The royalty-free license means no per-device fees. Over 17,000 GitHub stars prove the momentum. Would you switch from Qt to this? Comment below.