Browse Kotlin Multiplatform libraries

Mobile database optimized for offline use, simplifying data persistence with an object-oriented model. Features real-time data synchronization, intuitive developer experience, and supports asynchronous data observation.

Provides libraries for Matrix, enabling HTTP client interactions and cryptographic operations with Olm. Includes functions for sending and redacting messages, generating signatures, and decrypting messages.

Cross-platform media player library enables running sample apps on Android and iOS, and supports publishing to MavenLocal and MavenCentral with detailed setup instructions.

Simplifies Bluetooth printer integration with platform-agnostic API for discovering, connecting, and managing printers. Supports rich text formatting, seamless image printing, and custom command support for advanced control.

Text-to-speech SDK with native engines and HuggingFace ONNX models, SSML, voice selection, progress tracking, priority queuing, model management and on-demand downloads.

Core infrastructure for a file-transfer system: unified network APIs, Realm-backed database, shared utilities, and an injection model abstracting API/database logic into simple manager calls.

Offers comprehensive device and app information retrieval for applications, inspired by react-native-device-info. Supports various functions such as obtaining unique IDs, checking emulator status, and accessing platform-specific APIs.

Facilitates interaction with Notion by retrieving database information and exporting pages as Markdown. Supports querying databases and accessing block content, aiding data migration from Notion.

Enables interaction with Datadog for log collection and real user monitoring, supporting integrations like Ktor. Facilitates log and RUM event exploration through Datadog's console.

Enables video downloading from Instagram, Facebook, DailyMotion, LinkedIn, ShareChat, Vimeo, and Likee. Simple integration with projects, supports cookies for authenticated downloads, and offers a cloud API version.

Enables querying multiple torrent providers in one request, handling results, and resolving torrent information. Supports custom caching and includes a web demo for debugging.

Facilitates building AI-powered mobile and web applications using Gemini and Imagen models. Offers integration with Firebase AI Logic, enabling content generation and AI functionalities through straightforward setup.

Enables seamless integration of Google Maps functionalities in applications with a unified API, reducing platform-specific code. Offers map rendering, marker management, camera control, and Google Places suggestions.

Offers a vendor-agnostic API for feature flagging, enabling integration with various feature management tools. Supports targeting, hooks, providers, and tracking for contextually-aware flag evaluation.

Extensible, plugin-based debugging platform with runtime-loadable modules, DSL configuration, simultaneous session support, and type-safe serialized communication for customizable debugging workflows.

Lightweight framework for building decentralized social and messaging services, implementing the Milky protocol with networking primitives, serialization, extensible modules, and comprehensive documentation and community support.

Enables integration with Open-Feedback for session voting through Firebase. Offers customizable UI components with Compose and provides functionality to track and maintain stable UI metrics.

Manages websocket connections, handling ping-pong, event notifications, and connectivity status changes. Supports easy integration, subscription to events, and telemetry endpoint connectivity.

On-device debug logger capturing HTTP, MQTT and Bluetooth traffic — live browser and capture notification, structured AI-ready exports, secrets redacted at capture, memory-only ring buffer, noop release artifact.

Full-stack authentication stack: ready-to-run server plus shared SDK and client SDK with federated Google, passkey, OTP, email verification, KYC, reusable UI and credential manager.

Run LLMs locally with model downloading, GGUF export, SDKs and a CLI for testing; optimized on-device inference enabling private, serverless chat and model management.

Enables seamless integration with Appwrite's backend services, offering consistent API, full cross-platform support, and functionality mirroring the Appwrite Android SDK for ease of use.

Lightweight, modular security toolkit performing on-device threat detection and continuous RASP monitoring, with configurable detectors, DSL configuration, smart weighted risk aggregation and detailed incident reports.

Extracts YouTube videos and comments, maintaining compatibility with original usage. Refactored for improved readability, structure, and platform compatibility, with a pure Kotlin JSON implementation.

Wraps OS native spell checkers into a concise API for locale-aware single-word and sentence checking, suggestion generation, and runtime locale discovery—no bundled dictionaries required.

Unified wrapper for an analytics platform, offering event and revenue tracking, type-safe identify (150+ overloads), plugin extensibility, async-friendly extensions, thread-safe offline and session handling.

Multiplatform SDK facilitates integration with the Sui blockchain, offering type-safe APIs, client configurability, asynchronous operations, coroutines, and expressive DSL for constructing programmable transactions.

Authentication SDK simplifying sign-up, sign-in, and profile management with prebuilt UI components, customizable typography/theme, plus sample apps demonstrating custom flows, passkeys, MFA, and quickstart integration.

XMPP SDK offering modular RFC/XEP support, transport adapters (WebSocket/TCP), typed feature policy, IM features, Docker-backed interop tests; OMEMO end-to-end encryption planned.

Tool for creating, previewing, and saving GIF animations with Compose Desktop, using frame count or elapsed time for frame rendering.