Browse Kotlin Multiplatform libraries

AVIF image encoding and decoding — lightweight bindings offering simple API for encoding/decoding, format conversion, quality control, and metadata handling for image processing workflows.

Listener-based logging framework with asynchronous, thread-safe dispatch, multiple log levels, regex-based tag/message filtering, emoji console output, daily rotating file logs with cleanup, and custom listener support.

Coroutine-friendly bindings for FoundationDB providing a unified typed API, transactional helpers with automatic retries, futures, tuple utilities, tenant management and range iterator support.

For PocketBase: modular clients, coroutine-first APIs, result-based error handling, typed decoding helpers, cancellation-safe operations, auth workflows, realtime subscriptions, plus files and admin services.

Implements BLS12-381 cryptography for creating cross-platform Chia applications, featuring key generation, message signing, and signature verification, with support for multiple cryptographic schemes.

Open-source implementation of XPath, XQuery, and XSLT languages. Supports code analysis and IDE tools with W3C and vendor extensions, providing a framework for XML language implementation.

Facilitates serialization and deserialization of OSV Schema for vulnerability data. Supports multiplatform, KotlinX Serialization, and Jackson annotations, with extension points for database-specific fields.

lucene-kmp is a KMP port of Apache Lucene enabling On-device indexing and full text search capabilities in Android, iOS and desktop apps.

Cross-end MMKV wrapper enabling shared-layer key-value persistence with native SO/C-interop support, special adaptation for an alternate OS, unified buildchain and simple initialization/publishing.

Vulkan API bindings adding type safety, RAII-based resource management, exception handling and ecosystem integration; streamlines instance creation, error handling and graphics resource lifetime.

Flexible ORM simplifying database CRUD on plain classes with annotation-free mapping, lazy loading, coroutine-based transactions, paginated queries, stored-procedure support, composite-key handling, and native driver access.

Cross-platform ETH web3 client integrates with web3.swift and web3j, enabling Ethereum blockchain interactions. Requires iOS 13 or later for mobile deployment.

Manages object pooling efficiently, enhancing resource reuse and performance in applications. Supports LIFO strategy, customizable configurations, and adapts to various environments with ease.

Minimalistic JSON library offering robust performance, type-specific getters, and extensible classes without reflection or schema. Supports mutable and immutable containers, with Ktor content negotiation integration.

Facilitates DNS record resolution across various platforms with a basic DNS protocol client implementation, allowing for additional protocol support upon request.

Packages and distributes pre-compiled Tor resources for seamless integration as dependencies, offering exec and noexec types, GPL and non-GPL variants, ensuring build reproducibility and safety.

Computes tidy, aesthetic tree layouts using the Walker (Buchheim–Jünger–Leipert) algorithm in O(n) time. Adapter-based traversal, variable node sizes, multiple orientations, outputs deterministic node coordinates.

Custom runtime for AWS Lambda offering low overhead with cold starts between 9-15ms and sub-1ms warm invocations, supporting event handling with optional initialization and context.

Offers specialized assertions for testing Ktor applications, including matchers for HTTP headers and caching. Enhancements include new native targets and updates for compatibility with Ktor versions.

Facilitates URI template processing based on RFC-6570, supporting template parsing into literals and expressions. Offers flexible modifier handling, platform-specific artifacts, and comprehensive regression tests.

Enables fast key-value storage using LevelDB, offering operations like put, get, and delete. Supports multiple platforms with performance benchmarks across various systems.

Implements a standard redux pattern for state management, enabling middleware, store enhancers, and development tools. Facilitates modular development and enhanced code reuse across various platforms.

Library enables reading and writing of Tagged Image File Format (TIFF) files, offering multi-platform support. Inspired by TIFF Java, supports parsing, raster extraction, and TIFF file creation.

General-purpose library enabling usage across multiple platforms, including Java and JavaScript. Supports JVM languages and native binaries, with comprehensive API documentation available.

PostgreSQL driver enables executing SQL queries with connection pooling and named parameter support. Allows easy interaction with databases, mimicking Spring's NamedParameterJdbcTemplate functionality.

JWT creation, decoding and verification using an auth0-compatible API; HMAC algorithms (HS256/384/512) plus unsecured "none", common-code-first design, source or JitPack consumption.

Pure DEFLATE, GZIP and ZLIB compression/decompression with blocking and streaming APIs, configurable levels, preset-dictionary support, and high-performance parity with standard implementations.

Core foundation delivering type-safe environment detection, UUID V4/V7 generation, DSL markers and opt-in annotations, plus lightweight, concurrency-ready utilities for consistent ecosystem development and small footprint.

Facilitates native system calls for multiple platforms, enabling seamless interaction with operating systems. Offers a uniform API for executing system-level tasks across diverse environments.

Facilitates efficient manipulation of binary data with various BitArray implementations, using types like Byte, Short, Int, and Long, supporting mutable and immutable operations.