Slint – A declarative UI toolkit for embedded and desktop

In plain words

Slint is a declarative GUI toolkit written in Rust that supports C++ and JavaScript APIs for building graphical interfaces on desktop and embedded systems. Developers can choose from GPL, commercial, or royalty-free licensing options. The toolkit emphasizes a declarative approach to UI design, allowing developers to define interfaces through a straightforward syntax rather than imperative code.

written from the facts on this page · September 2026

From the sources

Slint is a declarative GUI toolkit for Rust, C++, JavaScript & Python — build native UIs for embedded, desktop, and web from a single codebase.

"Safe, reliable, and intuitive user interfaces are critical for our customers who depend on OTIV products to drive the future of rail automation. Slint has been an exceptional partner in helping us achieve this, providing the high-performance UI solutions we need to stay at the forefront of innovation." OTIV is pioneering rail automation through technology for assisted, remote and autonomous driving in rail. Their technology empower industrial companies, railway undertakings, infrastructure managers and OEM's to increase safety and efficiency of rail vehicles. "Slint stands out with its extensive out-of-the-box platform support, making it a prime choice for cross-platform development. It is…from slint.dev

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