Browse Kotlin Multiplatform libraries

Multi-platform game engine focuses on OpenGL/WebGPU, offering diverse demos (physics, UI, shaders, PBR, etc.), basic compute shader support, a shader language DSL, and an ongoing graphical scene editor.

Type-safe automatic differentiation framework enabling users to express differentiable programs with higher-dimensional data structures and operators. Ensures compile-time algebraic validity, reducing runtime errors and supporting advanced features like shape-safe tensor operations, symbolic derivatives, and property-based testing for numerical gradient checking.

DSL library for creating state machines and statecharts. Supports event-based transitions, reactive listening, nested and parallel states, typesafe transitions, undo transitions, and exports to diagrams. Zero dependencies.

Parser combinator library simplifies constructing complex parsers from simpler ones. Features include tokenization, combinators for chaining and transforming parsers, and grammar definitions for language parsing. Ideal for building interpreters and compilers.

Data visualization toolbox enabling consistent rendering across platforms. Offers modules for shapes, colors, interpolation, random data, easing, and more. Inspired by d3js and other libraries.

Validation library offering a declarative API for writing clear, maintainable validation code. Handles complex business logic, supports custom constraints, is highly extendable, and integrates with popular frameworks.

Schedules jobs using datetime and coroutines with features like delaying until specific times, recurring pulses, and flexible job execution modes. Ideal for in-process scheduling within long-lived applications.

Enables SQL queries at compile time using familiar language constructs. Simplifies database querying by allowing use of standard operators and syntax for conditions, joins, and subqueries. Offers a functional and composable approach to writing queries.

Set of libraries for working with geospatial data, including GeoJson implementation and a port of Turfjs, featuring a Kotlin DSL for building GeoJson objects.

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.

Client library for interacting with the Notion API, offering coroutine-based, blocking, and future-based flavors. Facilitates OAuth support, pagination, content creation with DSL, and configurable logging/proxy settings.

Enables capturing string variables before interpolation, enhancing security and flexibility. Implements custom DSLs for safe SQL queries, preventing SQL injection vulnerabilities through typed string interpolation.

Offers generic DSL support, including parsing, syntax analysis, formatting, and processing. Features runtime interpretation, simple grammar definition, and grammar composition/extension. Compatible with Java and JavaScript.

Enables concise, idiomatic parameterization of code and testing, modeling complex control flows cleanly. Supports customizable configurations for iterations, failure handling, and detailed multi-failure reporting, enhancing parameterized testing.

Asynchronous Elasticsearch query DSL enabling typed query expressions, sub-field navigation, and declarative query modifications. Supports multiple serialization libraries and autodetects Elasticsearch and Opensearch versions.

Declarative APIs for managing multi-way tree data, facilitating easy conversion between tree structures, path enumeration, and adjacency models. Offers tree operations like mapping, filtering, and node manipulation.

Lightweight, type-safe finite state machine DSL enabling lifecycle-tied asynchronous side effects, observable state stream and one-time effects, with restart-control keys, nested graphs, and tiny zero-dependency core.

Compose-style DSL for building vector-first, type-safe PDF documents with bundled Inter font, rich layout, text shaping (CJK/Arabic support), SVG/images, pagination and optional viewer.

Enhances HTML styling by integrating a type-safe, declarative DSL inspired by Tailwind CSS, facilitating inline style management without external stylesheets while ensuring seamless compatibility with kotlinx.html.

Lightweight library for form state management and field validation, offering concise DSL for building forms, handling nullability, supporting async validation, and employing a declarative paradigm.

Declarative DSL for handling keyboard hotkeys in Compose UIs, offering chords and sequential shortcuts, nested/preview scopes, per-component modifiers, and Hyper virtual-modifier expansion.

DSL for specifying systems via linear temporal logic. Enables model checking against implementations with Kotest or Scalacheck integration and property verification using Alloy integration.

Manages deep-link definitions, parsing, and creation with a single source of truth for actions and data. Features type-safe link building, parsing, routing, and auto-generating consistent documentation to streamline development and marketing integration.

Empowers developers to create and manage AI agents with a streamlined DSL, offering error handling, logging, and integration with the ecosystem to transition from PoC to production.

Implements a simple tree data structure for storing objects, with support for hierarchical organization and formatted string representation. Offers intuitive usage in multiple programming languages.

Defines type definitions and utilities for integrating with the Screeps game, offering lazy properties, memory delegates, and optional arguments for enhanced gameplay scripting.

Testing library enhances assertions with a power-assert compatible DSL, simplifies checking hierarchical data structures, and facilitates access to test files and environment variables.

Modern validation library offers a concise DSL for defining and executing validation rules, supporting type safety, multiple strategies, modular architecture, and built-in localization.

Lightweight reactive web toolkit: type-safe HTML DSL, precise two-way data binding with fine-grained DOM updates, built-in state management, validation, routing, websockets and webcomponents.

Formats user input values using customizable masks with syntax inspired by RedMadRobot. Supports mask creation with DSL, visual transformations for text fields, and phone number formatting.