Alternative to Flutter – Why teams move from
Flutter to Slint.
Advantages of Slint over Flutter
Lightweight, down to microcontrollers
The runtime fits in under 300 KiB of RAM and runs on bare metal, embedded Linux and desktop operating systems, with embedded support built into Slint itself.
See it run on an RP2040 →
No new language to adopt
Write the logic in Rust, C++, JavaScript or Python instead of Dart, and keep the toolchain your team already uses.
Browse Slint APIs →
Built with Rust
Performance, memory safety and concurrency without compromise, and no garbage collector pausing your UI.
Performant
Slint uses the best rendering method for the hardware: GPU accelerated, DMA2D, framebuffer or line-by-line.
Live preview
The UI lives in .slint files, separate from your logic, and updates instantly as you edit it.