krumb
0.1.1indexedGlobal, zero-config toast/snackbar system callable from anywhere; draws consistent UI, one-liner API, priority queue, promise pattern, action buttons, swipe-to-dismiss and progress bar.
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🍞 Krumb
The sonner of Compose Multiplatform — a toast / snackbar / notification library that's callable from anywhere, beautiful by default, and feature-complete.
Android · iOS · Desktop (JVM) · Web (Wasm)
Why Krumb
Most toast libraries make you thread a SnackbarHostState through your composables. Krumb doesn't. Call it from a ViewModel, a coroutine, a click handler — anywhere:
Toaster.success("Profile saved")
It draws its own Compose UI on every platform — not android.widget.Toast, not an OS banner — so a toast looks and behaves identically on Android, iOS, Desktop, and Web.
| Best DX | One-liner global API · zero-config setup · promise pattern · callable from anywhere |
| Best visuals | Depth-stacked toasts · spring animations · swipe-to-dismiss · pause-on-hover · progress bar |
Platforms
Install
In gradle/libs.versions.toml:
[versions]
krumb = "0.1.1"
[libraries]
krumb-material3 = { module = "io.github.nadeemiqbal:krumb-material3", version.ref = "krumb" }
In your shared module's commonMain (the material3 artifact transitively pulls in krumb-compose + krumb-core):
commonMain.dependencies {
implementation(libs.krumb.material3)
}
Not on Material 3? Depend on
io.github.nadeemiqbal:krumb-composedirectly and supply your ownKrumbStyle.
Setup
Wrap your app once, near the root:
@Composable
fun App() {
MaterialTheme {
Material3ToasterHost {
// your app content
}
}
}
That's it — no state to hoist, no host to pass around.
Usage
Priority & queue
Toasts beyond maxVisible are queued. Priority.HIGH jumps ahead and preempts the oldest LOW toast on screen:
Toaster.show("Critical alert") { priority = Priority.HIGH }
Modules
| Artifact | Description |
|---|
Sample apps
The sample/ directory has runnable showcases for every platform, all driven by one shared SampleApp():
./gradlew :sample:desktopApp:run # Desktop
./gradlew :sample:androidApp:installDebug # Android
./gradlew :sample:webApp:webBrowserDevelopmentRun # Web → localhost:8080
# iOS: open sample/iosApp/iosApp.xcodeproj in Xcode and run
Contributing
Issues and PRs welcome — see CONTRIBUTING.md. Maintainer release process is in RELEASING.md.
License
Copyright 2026 Nadeem Iqbal
Licensed under the Apache License, Version 2.0 — see the LICENSE file.