Annotations for JVM-based languages.

Thymeleaf is a modern server-side Java template engine for both web and standalone environments.

Java DSL for easy testing of REST services

An Android app for experimenting with Adaptive Icons.

Framework for quickly creating connected applications in Kotlin with minimal effort

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

Library support for Kotlin coroutines

The Kotlin Programming Language.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Spring Framework

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

A list of resources for building full-stack Spring Applications