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Top 23 declarative-ui Open-Source Projects
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slint
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
If you are looking for something similar but not limited to C++, you can check Slint out: https://github.com/slint-ui/slint/
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SaaSHub
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compose-multiplatform
Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
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ComposeCookBook
A Collection on all Jetpack compose UI elements, Layouts, Widgets and Demo screens to see it's potential
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Learn-Jetpack-Compose-By-Example
🚀 This project contains various examples that show how you would do things the "Jetpack Compose" way
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Project mention: Show HN: Notepad.exe – macOS editor for Swift and Python (now Linux runtime) | news.ycombinator.com | 2025-10-19
> Apple's on-device models for the AI?
no. Apple on-device models are not suitable for such a task. It uses a different model (I don't stick to one model in particular, as it may change)
> Does Swift have UI capabilities on Linux?
No. there are projects inspired by SwiftUI: https://github.com/stackotter/swift-cross-ui or https://git.aparoksha.dev/aparoksha/adwaita-swift (GNOME)
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Fabulous
Declarative UI framework for cross-platform mobile & desktop apps, using MVU and F# functional programming
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Einsen
🎯 Einsen is a prioritization app that uses Eisenhower matrix technique as workflow to prioritize a list of tasks & built to Demonstrate use of Jetpack Compose with Modern Android Architecture Components & MVVM Architecture.
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Blinc
A declarative, reactive UI system with first-class state machines, spring physics animations, and GPU-accelerated rendering
Project mention: Blinc: A declarative, reactive UI system with GPU-accelerated rendering | news.ycombinator.com | 2026-02-24 -
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SSJetPackComposeProgressButton
SSJetPackComposeProgressButton is an elegant button with a different loading animations. 🚀
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
declarative-ui discussion
declarative-ui related posts
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Blinc: A declarative, reactive UI system with GPU-accelerated rendering
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Fabulous – Build reliable multi‑platform apps effortlessly
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Cosmic Alpha Released
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batonjs - a declarative UI framework that retrofits dynamism to existing pages
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FLiP Stack Weekly for 06-Jan-2023
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Show HN: Sierra, a DSL for building Java Swing applications
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Kita Cross-Platform Declarative Reactive GUI All in Go
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A note from our sponsor - SaaSHub
www.saashub.com | 5 Jun 2026
Index
What are some of the best open-source declarative-ui projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | slint | 22,800 |
| 2 | compose-multiplatform | 19,099 |
| 3 | walk | 7,071 |
| 4 | ComposeCookBook | 6,832 |
| 5 | SwiftUI-Cheat-Sheet | 4,459 |
| 6 | Learn-Jetpack-Compose-By-Example | 3,453 |
| 7 | vizia | 2,153 |
| 8 | rui | 2,019 |
| 9 | swift-cross-ui | 1,576 |
| 10 | Fabulous | 1,260 |
| 11 | Einsen | 922 |
| 12 | moxie | 832 |
| 13 | SSComposeCookBook | 725 |
| 14 | pyedifice | 507 |
| 15 | Wiggles | 503 |
| 16 | JetComposer | 469 |
| 17 | owlkettle | 448 |
| 18 | Blinc | 419 |
| 19 | raui | 413 |
| 20 | SSJetPackComposeProgressButton | 328 |
| 21 | yakui | 329 |
| 22 | Awesome Jetpack compose | 294 |
| 23 | Lima | 174 |
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