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SonarQubePMD
Freemium

Free starting option, with paid plans for larger teams and more features.

 Free

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

Web, Self-hosted Windows, macOS, Linux, Command line
  • Self-hosted server or managed cloud option
  • Tracks technical debt and reliability as well as security
  • Large built-in rule set for Java, with support for other languages
  • Extensible with custom rules and rulesets
  • Running the server yourself needs infrastructure and maintenance
  • Advanced features are in paid plans
  • Command-line tool with no graphical interface of its own
  • Rulesets need tuning to avoid noisy reports on large codebases
Self-hosted, Hosted service Downloadable app
Closed source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 24, 2026

Checked October 1, 2026

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