Browse Kotlin Multiplatform libraries

Testing API for creating readable, fluent assertions inspired by Google Truth. Allows writing `assertThat` checks, custom messages, and exception assertions, producing cleaner error messages.

Adds basic support for Unicode code points by exposing methods from `java.lang.String`, `java.lang.StringBuilder`, and `java.lang.Character`, including `CodePoint` class for enhanced usability.

Enables in-IDE preview of user interfaces across different platforms, enhancing cross-platform development efficiency by providing real-time visualization and adjustments without leaving the development environment.

OpenTelemetry spec implementation offering both a native implementation and a compatibility façade over the Java SDK, with tracing, logging, and API/noop instrumentation modules.

Dependency Injection library facilitates easy provision and management of dependencies using annotations, supports compile-time dependency graph checks, and integrates with KSP for code generation.

Simplifies object mapping code generation by providing a compile-time solution, enhancing development efficiency and reducing errors. Offers type-safe, idiomatic code with intuitive error messages and compatibility with various platforms.

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.

Enforces structured concurrency for coroutines via compiler checks, static analyzers, IDE inspections, lint rules and annotations — compile-time errors, quick fixes, tool window, zero runtime overhead.

Experimental library offering Jetbrains Compose DSL wrappers for Material Design Components, enabling streamlined, customizable UI development. Supports selective component inclusion to optimize bundle size.

Offers graphics primitives for common code, including color conversion to platform-specific formats like ARGB and RGBA. Simplifies cross-platform graphics handling with straightforward installation and usage instructions.

Simplifies handling non-nullable values in various contexts including Bundles, Intents, and WorkManager Data by providing utility functions that throw meaningful exceptions when values are missing or of the wrong type.

Syntax highlighting components for composing code views and editors, supporting various programming languages, themes, and text formatting. Enables code component analysis and incremental updates with customizable views.

State-based paging implementation for efficiently managing and accessing sublists of a paged dataset in constant time. Supports various UI paradigms like sticky headers, search, placeholders, and adaptive layouts.

Design foundation offering beautifully pre-styled components, theming primitives and reusable building blocks to craft scalable, consistent design systems for rapid UI development.

Unlocks explicit type handling for enhanced safety and flexibility, offering unified type manipulation, automatic serialization, and specialized types like NotBlankString, PositiveInt, and NotEmptyList.

Multi-paradigm logic programming framework for symbolic AI, supporting knowledge representation and reasoning. Features include logic unification, query resolution, probabilistic logic programming, concurrent resolution, and Prolog-like DSL. Modular architecture encourages extensibility. Available as CLI, IDE, or library with various modules for different functionalities.

Next-gen dependency injection library offering a streamlined approach to providing and injecting dependencies, supporting multi-injection, scoping, modules, components, function injection, and type distinguishing strategies.

Modular, lightweight framework for apps, APIs, CLIs and jobs; offers infrastructure abstractions, provider integrations (AWS, Twilio, SendGrid, Slack), CLI generators and sensible defaults.

Experimental tool facilitates defining composable functions for later Swift implementation in iOS projects, generating necessary code and an ObservableObject to maintain state in SwiftUI views.

Displays formatted JSON data with syntax highlighting, expandable/collapsible objects and arrays, and customization options for visual appearance. Integrates seamlessly into Compose UI for enhanced JSON visualization.

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.

Cryptographic hash functions, such as MD5, SHA-1, SHA-2, SHA-3, BLAKE2.

Handles internationalization in programs, offering `Locale` and `LocalizedString` classes, parameterized messages, and code generation for message access. Supports inline translations and optimized message files.

Foundation for app development at Freeletics. Facilitates screen setup, navigation, and dependency injection code generation. Offers modular, type-safe navigation and utility libraries for extended functionality.

Editable, customizable text fields with chips, supporting various styles like filled, outlined, and underlined. Additional features include checkable and avatar chips, enhancing user interaction and visual appeal.

High-performance LaTeX math parser and renderer supporting full syntax, \newcommand macros, incremental parsing, chemical-formula (\ce{}) support, and extensive style customization (colors, boxes, display modes).

Integrates Rive animations with a unified API for Android and iOS, offering easy integration, native performance, state machine support, and flexible configuration options. Currently experimental.

Implements Minecraft's NBT format serialization, supporting all NBT variants and compressions. Offers type-safe `NbtTag` classes with convenient DSLs for data encoding/decoding to/from NBT or SNBT formats.

Library facilitates access to platform-specific directories for storing application data, configurations, caches, and logs. Supports multiple methods for different directory types and respects platform-specific standards.

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