Slint - The fast and easy UI Toolkit

Mission

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.

Our design goals are:

Straightforward

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.
Lightweight

Fit into a few hundred kilobytes of RAM and require little processing power.
Native

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.

Getting Started

Choose one of our language integrations to get started with Slint:

Rust Browse Documentation
C++ Browse Documentation
NodeJS Browse Documentation
Online Playground
(Beta) Go To Playground

For the best programming experience we recommend installing our Visual Studio Code extension.

Licensing

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.

Ambassador

Free

Perpetual

Attribute Slint

Standard Support

Unlimited User Seats

Unlimited Distribution on Desktop and Embedded

Get Now

Flex

from EUR 59 /month

Perpetual

Unlimited Projects

Standard Support

Priced per User Seat

Unlimited Distribution on Desktop

Get Quote

Buyout

from EUR 5900

Perpetual

30 hours Premium Support

Unlimited User Seats

Unlimited Distribution on Desktop

Pre-purchased volume of Distribution on Embedded

Get Quote

Open Source (GPLv3)

Free

For open source applications

Partners

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.

Visit the website

TQCS deliver professional services and solutions to make the finest embedded system for customers from industrial, medical, defense and automotive industries.

Visit the website

About Us

Photo of Olivier Goffart — Olivier Goffart
Co-Founder

Photo of Simon Hausmann — Simon Hausmann
Co-Founder

Photo of Aurindam Jana — Aurindam Jana
Co-Founder

Photo of Tobias Hunger — Tobias Hunger
Software Engineer

Photo of Florian Blasius — Florian Blasius
Software Engineer

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 renamed itself to Slint, and the company has been growing.