WebSphere Liberty alternatives and similar libraries

Based on the "Server" category.

Apache Tomcat

9.3 9.7 L1 WebSphere Liberty VS Apache Tomcat

Apache Tomcat
nanohttpd

8.9 0.0 L4 WebSphere Liberty VS nanohttpd

Tiny, easily embeddable HTTP server in Java.

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WildFly

8.5 9.7 L2 WebSphere Liberty VS WildFly

WildFly Application Server
Jetty

8.5 9.3 L1 WebSphere Liberty VS Jetty

Eclipse Jetty® - Web Container & Clients - supports HTTP/2, HTTP/1.1, HTTP/1.0, websocket, servlets, and more
Open Liberty

6.5 9.9 WebSphere Liberty VS Open Liberty

Open Liberty is a highly composable, fast to start, dynamic application server runtime environment
Apache TomEE

6.2 8.8 L2 WebSphere Liberty VS Apache TomEE

Apache TomEE
Piranha Project

3.2 0.0 WebSphere Liberty VS Piranha Project

Piranha - a modern cloud runtime