Checkstyle Addons provides additional detectors for the Checkstyle static code analysis tool for Java. It integrates with a large number of standard software, and is distributed through Maven Central. It is well tested and stable.

Checkstyle Addons is free software under the GNU General Public License, version 3 (GPLv3).

What's New

Get Started

Checkstyle Addons is packaged as a JAR file which is used in most situations, but for Eclipse and SonarQube, dedicated plugins are provided. Click on a logo for product-specific installation instructions, or just download everything:

Related Projects

The Checkstyle static code analysis tool is the foundation of a small ecosystem of tools, of which Checkstyle Addons is only a part. The most notable Checkstyle-related projects are: Checkstyle (the main project), Checkstyle-IDEA (IDE plugin for IntelliJ), Eclipse-CS (IDE plugin for Eclipse), the Gradle Checkstyle Plugin, the Maven Checkstyle Plugin, SevNTU Checkstyle (additional checks), Checkstyle Addons (additional checks; our humble selves), CS-Contrib (additional checks, focused on Eclipse), the SonarQube Checkstyle Plugin, and the Jenkins Checkstyle Plugin.
A professional Checkstyle setup will often run several of the above together, which may require some planning. Refer to the Checkstyle Compatibility Matrix to find out which versions to combine.