Additional ResourcesHomeElementsProductsPricingCareersHelpStatusEventsPodcastsCompliance CenterHeroku BlogHeroku Blog Find out what's new with Heroku on our blog. Visit Blog Webapp Runner allows you to launch an application in a Tomcat container on any computer that has a JRE installed. No previous steps to install Tomcat are required when using Webapp Runner. It’s a regular JAR file that can be e