JetBrains

compose-multiplatform

Kotlin2020–2023

JetBrains / compose-multiplatform

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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15Distinct people

15Mentions

0Explicit recommenders

19.5KGitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

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Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year15 dated mentions

Observed mentions: 2020-11-05 15:09:59 UTC to 2023-12-11 16:30:17 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	4	0	4
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	4	1	3
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	4	0	4
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	3	0	3

What Hacker News says

15 sources

bad_user·Dec 11, 2023

The latest Kotlin can target WasmGC. WasmGC became enabled by default, quite recently, in both Chrome and Firefox: https://developer.chrome.com/blog/wasmgc/ Kotlin's support is in Alpha right now, but works well, and it's one of the first language implementations that can target WasmGC: https://blog.jetbrains.com/kotlin/2023/12/kotlin-for-webasse... By comparison, .NET's Blazor targets LLVM, and they either AOT or JIT, however the client has to download a heavier runtime that has at least a garbage collector (nevermind the JIT), and is less than ideal. Basically, the original Wasm was designed for languages with linear memory and still makes a great target for C++ or Rust, but not for managed languages like Kotlin/Java. dotNET's WASM is there only to support Blazor, which is a web framework, a sort of successor to Web Forms and whose futu

Read the rest

re is uncertain. Speaking of which, you're better off with MVC + HTMX, but I digress. So for more interesting use cases, Kotlin is actually ahead in their Wasm support. For multi-platform support, the company behind it has a vested interest in targeting multiple platforms, and Kotlin Multi-platform support also has Google backing. So, for one, you can share business logic on iOS, as you can integrate Kotlin libraries into Swift applications: https://kotlinlang.org/docs/multiplatform.html And they have been porting Jetpack Compose to the desktop and to iOS (and can be used with Wasm in the browser, too): https://github.com/JetBrains/compose-multiplatform Also, see this year's keynote at KotlinConf: https://www.youtube.com/watch?v=c4f4SCEYA5Q&t=2903s Over on dotNET side, the blessed solution by Microsoft, for targeting iOS, Android, or the desktop, is right now .NET MAUI. So, where's Xamarin? Where's Silverlight for that matter? That's right, Microsoft changes multi-platform solutions like they change socks, and I don't understand how anyone could trust them for a multi-platform solution.

In Building a bare-metal bootable game for Raspberry Pi in C#

gecko·Jun 21, 2023

It's worth noting that Compose Multiplatform, which makes the same core decision, actually has a pretty solid accessibility story (https://github.com/JetBrains/compose-multiplatform/blob/mast...). It'd be nice if I didn't need the Java Access Bridge, but that doesn't seem like a major break for me.

In JetBrains Noria

yen223·Feb 9, 2023

The JVM doesn't have much of a presence in iOS, so that removes one fairly major platform. Kotlin Native, as an alternative to Swift, is not quite there yet. As for desktop apps, I guess it's just because web technologies has been Good Enough for a lot of use cases where one might consider using Java or Kotlin, plus you have a vastly bigger ecosystem, plus much better support across platforms (including iOS). For what it's worth, I'm keeping one eye out on Compose Multiplatform: https://github.com/JetBrains/compose-jb . While it is still new and fairly rough, I've had positive experiences building simple desktop apps with it.

In Ask HN: Why isn't Java/Kotlin seen as a contender for cross-platform apps?

fayten·Oct 12, 2022

Some neat info on the performance side of things, Fleet is using Skija[1] and Compose[2] as a rendering engine and UI framework. Skija is a java wrapper for Skia and still does not support the full API. Compose is still relatively new and has not had nearly the amount of man hours devoted to it as Swing. This is just a technical preview, I'm sure there will be plenty of optimizations to come. I think it's pretty exciting to see Skija being used for a mainstream project! [1] https://github.com/HumbleUI/Skija [2] https://github.com/JetBrains/compose-jb

In JetBrains invites developers to join the Fleet Public Preview Program

no_wizard·Mar 31, 2022

I think the closest I've ever seen is Dart's Flutter and Jetbrain's new Compose UI[0] [0]: https://github.com/JetBrains/compose-jb/blob/master/tutorial...

In Fast (2019)

pkos98·Mar 24, 2022

JetBrains "developed a new UI framework" for their new Editor Fleet: https://github.com/JetBrains/compose-jb I've put a part of the sentence in quotes because actually they've written a new desktop backend based on skia for the already existing Android Compose UI API.

In Ask HN: Does Java need a modern Java UI toolkit for desktop/web?

brianguertin·Feb 15, 2022

There's an exciting desktop port of https://developer.android.com/jetpack/compose done by Jetbrains: https://github.com/JetBrains/compose-jb

In JDeploy – Deploy desktop Java apps as native bundles on Mac, Linux, and Windows

akmittal·Dec 16, 2021

They have made a custom UI framework based on skia rendering engine. Skia is used by flutter, Chrome and firefox for rendering and known for great performance. https://github.com/jetbrains/compose-jb

In Lapce – Fast and Powerful Code Editor written in Rust

sudenmorsian·Nov 29, 2021Submission

Compose Multiplatform, by JetBrains

2 points · Open discussion

mikkelam·Nov 29, 2021

The UI is probably written with compose https://github.com/JetBrains/compose-jb

In Fleet, a Lightweight IDE from JetBrains

varbhat·Nov 27, 2021

Among two, maybe Flutter.But Go with Jetpack Compose. https://developer.android.com/jetpack/compose https://www.jetbrains.com/lp/compose-mpp/ https://github.com/JetBrains/compose-jb

In Ask HN: Flutter vs. React Native – which one do you prefer?

nxrabl·Nov 17, 2020

It’s good that you mention accessibility, because TFA does not. Nor does the Skaija repo, and nor does the repo for Jetpack Compose for Desktop [0], JetBrains’ higher-level UI kit based on it. I think it’s a mistake to suggest that “native UI toolkit” implies “feature complete”. [0]: https://github.com/JetBrains/compose-jb

In Graphics for JVM

tasuki·Nov 5, 2020

Quite great. I never understood why you'd want that copy-pasted everywhere: it's just noise. Isn't a `LICENSE` file at the repo root enough? https://github.com/JetBrains/compose-jb/blob/master/LICENSE

In JetBrains Compose

dector·Nov 5, 2020

This is Desktop interpretation of Google's Jetpack Compose done by JetBrains team. I guess, for Alpha stage they are not targeting wide audience but mostly people that are familiar with Compose (or wanted to try it). In most cases you can just copy-paste your Android UI layer or make it cross-platform (like in this code-viewer example https://github.com/JetBrains/compose-jb/tree/master/examples...)

In JetBrains Compose

screwreg·Nov 5, 2020

Stripping copyrights is a great way to start a project: https://github.com/JetBrains/compose-jb/commit/6009cdd6cbdcf...

In JetBrains Compose