WebSphere Application Server Alternatives

TrailBase offers a blazingly fast, open-source application server featuring type-safe APIs and real-time data. Built on Rust, with JS/ES6/TS runtime, it provides built-in authentication, admin UI, and low-latency responses. Supports mobile, web, and desktop, eliminating the need for dedicated caches.

JBoss is Red Hats Java EE 5-compliant (soon Java EE 6-compliant) application server. It is, as with Red Hat itself, dual-licensed either as open source (community edition) or commercially (enterprise edition).

Oracle WebLogic Server 12c is the #1 application server across conventional and cloud environments, providing extreme cloud performance, scalability, and elasticity.

appserver.io is a multithreaded application server for php written in php. Our technology allows real multi-threading in PHP and different useful services for developers enabling more efficiency and security. And best of all – it is completely open source!

The Mako Server is an application server with an API that loosely resembles the Java Servlet API, but where server side web applications are designed in the Lua scripting language. The Mako Server is capable of delivering dynamically generated content faster than Apache can...

GlassFish v3, built by the GlassFish community, is the first compatible implementation of the Java EE 6 platform specification. Many of the Java EE 6 themes carry over to Sun GlassFish Enterprise Server v3 - flexibility, extensibility, and developer ease of use.

A Java EE 5-certified application server for web and enterprise applications based on Suns Java EE platform specification. The goal of the Geronimo project is to produce a server runtime framework that pulls together the best Open Source alternatives to create runtimes that...

JOnAS is a leading edge Java EE 5 certified Open Source OSGi Enterprise Server by OW2. The License used by JOnAS is the LGPL. The OW2 development community includes many academic institutes (Grenoble University, INRIA, LIFL, Peking University, UPM, ...

Payara Server is an open source, cloud-native middleware platform supporting reliable and secure deployments of Java EE (Jakarta EE) applications on premise, in the cloud or hybrid environments.