Multik on different platforms

Overview

Multik is a Kotlin Multiplatform library. You can use the same NDArray API across JVM, JS, Native, and WASM, and choose an execution engine that fits your target and performance needs.

Supported targets

Multik supports the major Kotlin targets:

JVM
JS
Native (iOS, macOS, Linux, Windows)
WASM

Target presets

The following target presets are supported:

Target platform	Target presets
Kotlin/JVM	`jvm`
iOS	`iosArm64`, `iosX64`, `iosSimulatorArm64`
macOS	`macosX64`, `macosArm64`
Linux	`linuxX64`
Windows	`mingwX64`
JS	`js`
WASM	`wasm`

Engine availability by platform

Multik separates the API from execution engines:

DEFAULT chooses the best available engine at runtime.
KOTLIN is a pure Kotlin implementation and is the safest choice for portability.
NATIVE uses OpenBLAS for higher performance where available.

Target	Engines	Notes
JVM	DEFAULT, KOTLIN, NATIVE (OpenBLAS)	NATIVE requires the OpenBLAS artifact.
JS	KOTLIN	Browser and Node.js targets.
WASM	KOTLIN	Kotlin/WASM targets.
Native (desktop)	KOTLIN; NATIVE (OpenBLAS) on selected targets	OpenBLAS for desktop native targets (`linuxX64`, `mingwX64`, `macosX64`, `macosArm64`) is experimental and unstable.
Native (iOS)	KOTLIN	OpenBLAS is not available.

For details such as Android ABI limits, see the platform pages below.

Multiplatform setup pattern

A common approach is:

Add multik-core to commonMain.
Add engine dependencies per target: multik-kotlin for JS/WASM/Native, and multik-default or multik-openblas for JVM.

For dependency examples, see Installation.

Platform-specific guides

If you spot a typo or missing detail, please open a docs issue.

19 February 2026