Fluid Create smooth, touch-friendly user interfaces
Cross-Platform Target embedded devices and desktop applications
Multi-Language Intuitive API in your favorite programming language (C++, Rust, JavaScript)
Rapid Design Iterate quickly with Live-Preview
Slint is a toolkit to efficiently develop fluid graphical user interfaces for any display: embedded devices and desktop applications. We support multiple programming languages, such as Rust, C++, and JavaScript.
Programmers and designers should feel productive and be able to enjoy the design and development process. The APIs should be consistent, easy to use, and intuitive, no matter the target language. High-quality documentation should describe the APIs, teach concepts and how to use them.
Fit into a few hundred kilobytes of RAM and require little processing power.
We support many different target platforms, from embedded devices to desktops including mobile and web. Both the user and the developer should feel at home on each platform. The look and feel and experience should match the users' expectations of a native application.
Choose one of our language integrations to get started with Slint:
Rust
Browse Documentation
C++
Browse Documentation
NodeJS
Browse Documentation
Online PlaygroundFor the best programming experience we recommend installing our Visual Studio Code extension.
Try one of our demos in the browser, cross-compiled to WebAssembly:
Video of the Slint printer demo running on a STM32H7 MCU:
You are free to use Slint under either an open source license or a commercial license. We also offer a completely free-of-charge commercial license under the Ambassador Program.
The commercial license gives you the perpetual right to use Slint to develop applications and includes standard support.
Regardless of the license you choose, open source or commercial, you can buy premium support in blocks of 10 hours.
For more details on the commercial license, refer to the Slint software license agreement and the licensing FAQs.
Perpetual
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Standard Support
Unlimited User Seats
Unlimited Distribution on Desktop and Embedded
Perpetual
Unlimited Projects
Standard Support
Flexible User Seats
Unlimited Distribution on Desktop
Perpetual
30 hours Premium Support
Unlimited User Seats
Unlimited Distribution on Desktop
Pre-purchased volume of Distribution on Embedded
For open source applications
The Rust Foundation is an independent non-profit organization dedicated to stewarding the Rust programming language and developing the project.
Visit the website
Crossware provides cross platform UI, IoT, and multimedia Software Solutions (Linux, MCU’s, Android).
Visit the website
Cynetis offers complete solutions for the development of embedded software and real-time applications on microcontroller.
Visit the website
The KDAB Group provides leading software expertise across modern embedded, desktop and mobile platforms.
Visit the website
Spyrosoft is an awarded software & technology group with over 1 000 employees across 13 sites in 7 countries.
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TQCS deliver professional services and solutions to make the finest embedded system for customers from industrial, medical, defense and automotive industries.
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Olivier and Simon met while working together in a small company in Norway called Trolltech, on the Qt C++ toolkit. Here, they gained valuable experience in API design, cross-platform software development and user interface components.
Simon continued in the Qt Company as a lead developer and maintainer of the QtQml engine, while Olivier co-founded Woboq, a software consulting company.
Years later, in 2020, they started the SixtyFPS project and company in Berlin. The SixtyFPS project has been renamed to Slint, and the company has been growing.
Questions? Check out our Frequently Asked Questions
In this blog post, I want to explore both directions of integration between Rust and C++ and present some tools we use in Slint.
In the past year we've added various small features to the language, while maintaining stability and backwards compatibility. Meanwhile, we've collected feedback from our users and gained experience by implementing some designs ourselves. We gathered various ideas to improve the language itself and we think that now is a good time to implement these: Since we're still at version 0.x and need to make these changes before we reach version 1.0.
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