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

Full-featured modern Java platform, created from the ground up as an alternative to Spring/Micronauts/Netty/Jetty. It is designed to be self-sufficient (no third-party dependencies), simple, lean and to provide ultimate performance. Consists of a range of libraries, from dependency injection and high-performance async I/O (inspired by Node.js), to application servers and big data solutions


class Main extends HttpServerLauncher {  @Provides  AsyncServlet servlet() {    return request -> HttpResponse.ok200()      .withPlainText("Hello world");  }    public static void main(String[] args) throws Exception {    Launcher launcher = new HttpHelloWorldExample();    launcher.launch(args);  }}
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Minimum dependencies

Lightweight minimalistic self-sufficient Java framework with no third-party dependencies

layers

Rich stack

Features a rich stack of technologies for building lightning-fast and asynchronous applications

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Overhead-free

Minimalistic, overhead-free design that provides outstanding performance

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Best alternative

Full-featured alternative to Spring, Micronaut, Apache Spark, Quarkus, and other solutions

A step ahead of other solutions

Squeezing the last bits of performance from your hardware

Minimum web application size

1.4 MB

ActiveJ

17 MB

Spring

Web application launch time

0.65 Sec

ActiveJ

14 Sec

Spring