Apache Tomcat is described as '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' and is a Web Server in the development category. There are eight alternatives to Apache Tomcat for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and Docker apps. The best Apache Tomcat alternative is TrailBase, which is both free and Open Source. Other great apps like Apache Tomcat are Payara Server, JBoss, NGINX Unit and Jetty.