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Java framework for modern web, cloud, high-load, and microservices solutions

A full-featured, modern Java platform built from the ground up as an alternative to Spring/Micronauts/Netty/Jetty. It is designed to be self-sufficient (no third-party dependencies), simple, lightweight and provides competitive performance. It consists of a number of libraries, from dependency injection and high-performance asynchronous I/O (inspired by Node.js), to application servers and big data solutions

class Main extends HttpServerLauncher {
AsyncServlet servlet() {
return request -> HttpResponse.ok200()
.withPlainText("Hello world");

public static void main(String[] args) throws Exception {
Launcher launcher = new HttpHelloWorldExample();

Minimum dependencies

Lightweight minimalistic self-sufficient Java libraries without third-party dependencies

Rich stack

Features a rich stack of technologies for building fast asynchronous applications


Minimalist design with no overhead for competitive performance

Alternative approach

An alternative to Spring, Micronaut, Apache Spark, Quarkus, and other solutions