Apps similar to ActiveJ include Ktor, which is free and open source. Other options are Spring, Jmix, Apache Tomcat and NGINX Unit. In total there are eight Software Frameworks like ActiveJ for Mac, Linux, Windows and self-hosting.
Ktor is a framework for building asynchronous servers and clients in connected systems using the powerful Kotlin programming language. Ktor consists of two parts: the server engine and a flexible asynchronous HTTP client.
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Spring makes programming Java quicker, easier, and safer for everybody. Spring’s focus on speed, simplicity, and productivity has made it the world's most popular Java framework.
United States
Jmix provides powerful full stack architecture along with Rapid Application Development tools for easy start and fast development of modern business web applications.
United Kingdom
Apache Tomcat is an open source software implementation of the Java Servlet and JavaServer Pages technologies. Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.
United States
A lightweight and versatile open source server that simplifies the application stack by natively executing application code across eight different programming language runtimes.
The Jetty Web Server provides a HTTP server and Servlet container capable of serving static and dynamic contend either from a standalone or embedded instantiations.
Play is a web application framework, written in Scala and Java, which follows the model–view–controller (MVC) architectural pattern.
Lightweight asynchronous framework for efficient and scalable web, network and big data solutions. Has its own lightning-fast I/O core and DI.
