Slint
Declarative GUI toolkit for Rust, C++, JavaScript, and Python targeting embedded, desktop, and web.
Our Verdict
Promising modern alternative to Qt for embedded and desktop, though Qt still wins on ecosystem maturity.
Pros
- Declarative GUI that compiles to native
- Rust, C++, JS, and Python bindings
- Tiny runtime suits embedded targets
- Live preview speeds up UI iteration
- Real open-source (GPL + commercial)
Cons
- Young ecosystem — few third-party widgets
- Documentation thin for complex layouts
- Commercial license needed for closed source
- Smaller community than Qt or Flutter
When to Use Slint
Good fit if you need
- Rust desktop GUI app with declarative Slint UI language
- Embedded touchscreen UI for a microcontroller device
- Cross-language UI shared between Rust and C++ backend
- Lightweight GUI for a developer tool targeting WASM web
- Native app UI for Python backend without Qt or GTK
Pricing
Price wrong?Slint Pricing
- Pricing Model
- freemium
- Free Tier
- Yes
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Project Health
Health Score
10
today
44d
838
0d
NOASSERTION
Last checked: 2026-04-21
Lock-in Assessment
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