Performance-oriented Data Structures for Kotlin

Server-side UI components with spring boot

Generates Kotlin Code from OpenApi3 Specifications

Geospatial messenger application written with Spring Boot + Kotlin + PostgreSQL

Kotlin 'parse not validate'

Monetary calculations and allocations made easy

Utilities and examples used in Meta to simplify migration from Java to Kotlin and maintenance of Kotlin code.

Parser-combinators with Multiplatform Kotlin Coroutines

Tiny is a lightweight 2D game engine that allows developers to easily create games using the Lua programming language.

Kotlin function and objects for working with SI units like meter, second, as well as currencies and general units like percent.

Kotlin async http server framework with coroutines and zero deps

Minesweeper-like puzzle game

Wisp is a collection of kotlin modules providing various features and utilities, including config, logging, feature flags and more.

Kotlin implementation of the Model Context Protocol (MCP)

Brainlessly simple and safe SQL Database Access for Kotlin

Kotlin REPL with an IDE-like experience in your terminal

Nano ID for Kotlin.

Toolbox of utilities/helpers for Kotlin development.

Lightweight library to simplify JDBC database access

Kotlin Multiplatform Typed OpenAPI Document Parser (KotlinX) with Typed Secondary Custom ADT for inspection, typed transformations, code generation, etc.

Set of factories and utils to create effective and lightweight property-based testing strategies.

Ktor server powered by LangChain4J with RAG Support, Chat powered by Kotlin Wasm using Compose Multiplatform, Persistence using Postgres with Exposed.

A lightweight Kotlin wrapper of the Proxy API.

A non-intrusive set of extensions sprinkled over the Kotlin standard library.