Learn KOTLIN-JS-WASM with Real Code Examples

Kotlin code -> Kotlin compiler IR -> JS/Wasm output

Wasm-GC enabled runtimes for managed memory

Interop layer for JS imports/exports

Gradle-based project structure

Multiplatform shared module + platform-specific modules

Kotlin IR -> JavaScript or WebAssembly

Wasm-GC provides managed memory

Interop bridge for JS imports

Browser runtime manages DOM

WASI runtime support emerging

Full-stack Kotlin web

Kotlin+React frontends

Wasm compute modules

Compose-for-Web SPA

Shared business logic MPP

Kotlin Multiplatform + Compose Web

Ktor backend + Kotlin/Wasm frontend

Wasm compute engine embedded in JS apps

Mixed JS/TS + Kotlin/JS interop apps

Enterprise Kotlin shared logic stacks

Strong typing across platforms

Multiplatform-first architecture

High-performance Wasm output

Excellent tooling

Clean JS/Wasm interop

Kotlin/Wasm scales with browser/edge runtimes

Compose for Web SPAs scale horizontally

Multiplatform logic prevents code duplication

Wasm modules integrate with CDNs

Static hosting enables global distribution

Move JS logic to Kotlin shared module

Replace TS types with Kotlin external declarations

Adopt Compose for Web

Enable Wasm target

Optimize JS/Wasm bundles