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Slint

Freemium#28 of 62 in Cross-Platform App Development Frameworks

Slint: A shared declarative UI framework for native apps across desktop, mobile, web and embedded. Ranked #28 of 62 in Cross-Platform App Development Frameworks by our editors (7.1/10); pricing: Free plan; best for teams building native UI for embedded and desktop targets.

7.1/10Editor score
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At a glance

  • Editor score
    7.1 / 10
  • Pricing
    Free plan
  • Best for
    Teams building native UI for embedded and desktop targets
  • Free plan
    Yes
  • Paid from
    $1/device one-time
  • Native API access
    Yes
  • Founded
    2021 · Hohen Neuendorf, Brandenburg, Germany
  • Facts checked
    28 Sep 2026

  • Where it wins

    • Shares one UI codebase across desktop, mobile, web and embedded targets
    • Offers Rust, C++, JavaScript/TypeScript and Python APIs
    • Includes live preview, responsive layouts and GUI test automation

  • Where it doesn't

    • Commercial license pricing is sales-led
    • Community License requires Slint attribution
    • Embedded commercial use has a per-device royalty

Our verdict on Slint

Slint is a declarative GUI toolkit for developers building native desktop, mobile, web and embedded applications. Teams describe interfaces in the Slint UI language and connect them to business logic in Rust, C++, JavaScript/TypeScript or Python. Its shared UI codebase and native compilation make it relevant when a product must span desktop and embedded devices without maintaining separate interface implementations. It also targets Android, iOS and WebAssembly, so it can suit teams with a wider platform remit.

The framework combines native machine-code compilation and operating-system API access with responsive layouts, Material 3 components and live preview with real-time property editing. GUI test automation and CI integration support automated interface checks, while language-server integrations cover editors including Visual Studio Code, Qt Creator, Kate, Helix, Vim, Neovim, Sublime Text, JetBrains IDEs and Zed. This breadth is useful for teams working across languages and toolchains, though it also means Slint is a framework for developers prepared to define UI declaratively and connect it to application logic, rather than a ready-made app builder.

Licensing is a central selection factor. GPLv3 covers open-source applications; the Community License covers desktop, mobile and web applications with Slint attribution required. Startup & Individual licenses proprietary applications and includes Live Preview. Small Enterprise adds standard support, while Enterprise includes standard support and a perpetual fallback license. Commercial embedded projects use the Embedded royalty option, listed at $1 per device one time, with volume discounts available. Paid license prices are sales-led. Slint fits teams that value shared native UI across embedded and desktop targets and can align with its licensing terms; teams seeking published commercial plan prices or an attribution-free community option should compare alternatives.

Slint pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 28 Sep 2026.
See plans on slint.dev

All 6 Slint plans and prices →

Slint fact sheet

Free planYes
Paid from$1/device one-time
Target platformsWindows, macOS, Linux, Android, iOS, WebAssembly, embedded devices and microcontrollers
App typesnative desktop, mobile, web and embedded applications
LanguagesRust, C++, JavaScript/TypeScript, Python
Native API accessYes
Shared code modelHigh
IDE supportVisual Studio Code, Kate, Qt Creator, Helix, (Neo-)Vim, Sublime Text, JetBrains IDE, Zed
DeploymentDesktop, Mobile, Self-hosted
PlatformsWeb, Windows, macOS, Linux, iOS, Android
SupportEmail, Live chat, Community, Docs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
PricingFree plan (source)
Websiteslint.dev
Facts checked28 Sep 2026

Alternatives to Slint

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Featured on iTechGuides

Featured on iTechGuides — Slint 7.1/10

Slint is listed in our Cross-Platform App Development Frameworks directory. Add the badge to your site — it links back to this page.

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Guides on Cross-Platform app development frameworks

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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