Browse Kotlin Multiplatform libraries

Asynchronous, unencrypted persistent key-value storage offering a Web Storage–compatible API, batch operations, multi-database support and simple async get/set/remove methods for React Native apps.

Offers modular tools for cross-platform mobile app development, including features like MVVM architecture, location services, permissions management, Bluetooth communication, and more, using coroutines and `Flow` for efficient design.

Haptic feedback SDK offering ready-to-use presets, system-style impacts, custom pattern composer with discrete events and continuous amplitude/frequency envelopes, plus realtime gesture-driven composer and worklet-friendly API.

Facilitates responsive UI design by implementing Material 3 window size classes across multiple platforms, ensuring layouts adapt to various screen sizes. Supports Android, iOS, desktop, and web environments.

Lightweight library simplifies development with APIs for battery management, file system operations, and package information retrieval, supporting integration with multiple platforms and providing Swift package availability.

Enables easy barcode scanning in apps using Google’s MLKit on Android and Apple's AVFoundation on iOS, supporting QR and EAN-13 formats with simple integration.

Enables real-time network monitoring within applications using Ktor library. Offers configurable settings, session tracking, and supports both static and dynamic frameworks for enhanced flexibility.

Lightweight 2D game engine enables creation of simple games with modular plugins for scaling, object management, audio, shaders, and physics. Offers tools like Scene Editor and Debug Menu.

Lightweight MVI library enables structured state management with unidirectional data flow, type safety, coroutine support, and clear separation between UI and domain logic.

Library emits network connection status, offers immediate connection state checks, IP info retrieval, and network state observation. Supports customizable instance creation and includes default IP resolvers.

Library simplifies navigation management with a clean, decoupled API, supporting type-safe commands, lifecycle awareness, and easy testability through a command queue and architectural components.

Cross-platform audio tag editor in early development, leveraging Compose for UI and kotlinx-io for IO operations, supporting FLAC format metadata reading and writing.

Cross-platform WebView component exposing WebViewState and navigator APIs; backed by native OS webviews via Rust+UniFFI (Wry), with JS-native bridge, cookie API, request interceptor.

Lightweight implementation of OpenID Connect/OAuth 2.0 supporting Authorization Code Grant Flow, discovery, PKCE, and simple JWT parsing. Includes Android, iOS, desktop support, and OkHttp/Ktor integration.

QR-Code and other 2D/3D code scanner for Compose Multiplatform. Offers basic permission handling, supports multiple code types, and includes a sample app for reference.

Simple API converts HTML to AnnotatedString with styling for UI components, replacing traditional HTML parsers. Supports custom styling, hyperlink handling, and unstyled text conversion. Future goals include inline image display.

Enables content zooming with dragging, double-tap, and swipe-to-dismiss gestures. Features over-zoom effects and seamless integration with horizontal pagers, enhancing image viewing quality and interaction.

Compiles AT Protocol schemas into usable classes, provides APIs for the AT Protocol spec usable with services like Bluesky Social, and includes example client apps demonstrating API usage.

Implements the Lightning Network for mobile wallets, enabling efficient sending and receiving of payments without relaying. Shares architecture with server-optimized eclair but focuses on different use cases.

Creates WebGPU bindings for web, desktop, and mobile, enabling cross-platform graphics development. Offers example executions and is progressing through API implementation and refinement phases.

Enables rapid integration of Google AdMob on mobile platforms, displaying ads as Composables with customizable ad experiences through lambdas for flexible user interactions.

Unified specification and tooling for implementing in-app purchases: standardized APIs, generated types/spec, framework SDKs, and hosted receipt-validation SaaS with dashboard for consistent behavior.

Facilitates native notification displays across Android, iOS, Web, and Desktop using JetBrains Compose. Features customizable notifications, event handling, and local notifications support with a unified API.

Facilitates encoding and decoding of blur hashes in applications, addressing inconsistencies in existing implementations. Offers a unified API and sample apps for various platforms, ensuring consistent image processing.

Physics-driven particle effects with two renderers: layout-based custom particle content and high-performance canvas; directional gravity, edge behaviors (bounce/stick/wrap), blend modes, multi-emitter orchestration.

Enables launching in-app or market reviews from shared code, supporting multiple app stores with implementations for Amazon, App Gallery, Galaxy Store, Google Play, and RuStore.

Simplifies access to Android Health Connect and Apple HealthKit APIs, enabling easy health data management, permission handling, and record reading/writing across platforms in a unified environment.

Offers a declarative API for managing Snackbars, supporting global and local messages, type-safe custom messages, flexible positioning, custom UI, and animations.

Facilitates multi-platform authentication with Google Sign-In across Android, iOS, Desktop, and Web. Includes GoogleSignInButton composable for easy integration and future support plans for additional providers.

Creates a debugging menu featuring network inspection, customizable properties, and key-value storage. Allows toggling settings, selecting options, and executing actions through a user-friendly interface.