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PMDSpotBugs
Free

Free to download and use, with source code published on GitHub.

 Free

Free software under the GNU Lesser General Public License.

Windows, macOS, Linux, Command line Windows, macOS, Linux, Command line
  • Large built-in rule set for Java, with support for other languages
  • Extensible with custom rules and rulesets
  • Checks more than 400 bug patterns
  • Integrations for Maven, Gradle, Ant and Eclipse
  • Command-line tool with no graphical interface of its own
  • Rulesets need tuning to avoid noisy reports on large codebases
  • Requires Java 11 or later to run
  • Java bytecode only, not other languages
Downloadable app Downloadable app
Open source Open source
License not stated License: LGPL-2.1-only
No account needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.