Compose Multiplatform

Library mod bundling JetBrains' Compose Multiplatform libs

337.6K Downloads

fabricornitheutility

About this Mod

Library mod bundling JetBrains' Compose Multiplatform libs. This is used in Polyfrost's OneConfig on modern versions of Minecraft.

Uses our fork of skiko temporarily to support Vulkan on 26.2

Note: this does NOT provide the functionality plugging in Compose into Minecraft. This is a separate library due to the sheer size of Compose's libraries, including Skiko.

Available Versions

Compose Multiplatform 1.0.5+compose.1.12.1release

MC 1.8.9, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2, 26.3fabric, ornithe

September 29, 2026

Compose Multiplatform 1.0.4+compose.1.12.0release

MC 1.8.9, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2, 26.3fabric, ornithe

September 6, 2026

Compose Multiplatform 1.0.4+compose.1.12.0release

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2, 26.3fabric

September 5, 2026

Compose Multiplatform 1.0.3+compose.1.12.0-alpha01release

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2fabric

September 2, 2026

Compose Multiplatform 1.0.2+compose.1.12.0-alpha01release

MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2fabric

July 4, 2026

How to Install Compose Multiplatform on Your Client

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

Download the Matching File

Choose the Compose Multiplatform file for fabric and Minecraft 26.3.

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabricornithe

Minecraft Versions

26.3, 26.2, 26.2-rc-2 (+20 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Compose Multiplatform need to be installed on the Minecraft server?

No. Modrinth marks Compose Multiplatform as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does Compose Multiplatform require?

Use a file for fabric, ornithe and your exact Minecraft version. Supported versions include 26.3, 26.2, 26.2-rc-2. Files for different loaders are not interchangeable.

Compose Multiplatform is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.