Browse Kotlin Multiplatform libraries

High-efficiency library for creating QQ bots, supporting various message types (text, images, voice, etc.), group management, and synchronization with other clients. Open source and community-maintained.

Manages and processes Protocol Buffers schemas, facilitating efficient schema handling and API documentation.

Next-generation live media protocol delivering WebRTC-like real-time latency at massive scale via QUIC. Features prioritization, partial reliability, pub/sub fan-out relays, WebTransport/WebCodecs integration.

A blazing fast, coroutine-first, undetectable web scraping / browser automation library for Kotlin

Fully native Apache Kafka client offering synchronous and asynchronous messaging, leveraging coroutines and native memory model for high performance. Supports polling, headers enrichment, and error handling.

High-performance NATS client enables messaging support across platforms with features like TCP and WebSocket transport, coroutine-based reactive programming, and a clean API for versatile application deployment.

Pure Kotlin AMQP client and protocol implementation, optimized for KMP and coroutines.

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.

Facilitates real-time communication in applications, managing data transmission globally with low latency. Includes publish/subscribe, event listeners, and message handling functionalities.

Privacy-first, offline automation platform for home IoT and process control; typed Node graph, real-time SSE state, peer-to-peer mesh, GPIO/camera support, color sensing, SVG dashboards, local LLM integration.

Web service for geospatial data access and management, offering GeoJson-based REST and Java APIs, Postgres support, data change event publishing, and customizable extension framework for integrations.

Enables efficient RabbitMQ/AMQP communication through publish/subscribe, request/reply schemes, and fast asynchronous processing with coroutine support. Offers configurable queues and automatic recovery features.

Facilitates MQTT protocol communication, supporting multiple platforms for seamless message exchange and connectivity in distributed systems. Offers a versatile toolset for developing MQTT-based applications.

Lightweight framework facilitates system pulverization, enabling the configuration and deployment of distributed systems using specific protocols like RabbitMQ and MQTT for communication.

Secure, customizable communication layer between wearables and companion apps: structured message envelopes, transport‑agnostic routing, battery‑aware connection lifecycle, retries/ACKs, and reactive incoming streams.

Facilitates cross-platform application development with shared code and platform-specific implementations, supporting seamless integration of iOS and web components alongside SwiftUI and Compose Multiplatform.

Set of libraries for building microservices, enhancing service development with useful utilities.

MQTT 3.1.1/5.0 lightweight, configurable client and broker supporting TCP, TLS and WebSockets; subscription/publish APIs, authentication, authorization, packet interception and optional clustering.

Abstracts external services into swappable implementations (databases, caches, files, email/SMS/push/pubsub), with built-in metrics, health checks, local-run helpers and Terraform generation.