Open Source SonarQube Alternatives

The best open source alternative to SonarQube is Codacy. It's not free, so if you're looking for a free alternative, you could try Codacy or Shellcheck. If that doesn't suit you, our users have ranked more than 25 alternatives to SonarQube and 16 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to SonarQube are Repowise, VibeGuard, SlowQL and Semgrep.

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Alternatives
SonarQube alternatives page was last updated

Alternatives list

  1. VCG is an automated code security review tool that handles C/C++, Java, C#, VB and PL/SQL. It has a few features that should hopefully make it useful to anyone conducting code security reviews, particularly where time is at a premium:

    Cost / License

    Since

    • Since 2016

    Platforms

    • Windows
    Good alternative?
     
  2. Exlint icon
     Like

    Exlint is a an open source project that enables developers to centralize their open source coding standards and policies, so that configuring repositories becomes as easy as typing one command.

    Cost / License

    • Free
    • Open Source

    Since

    • Since 2023

    Alerts

    • Discontinued

    Platforms

    • Software as a Service (SaaS)
    • Self-Hosted
    Good alternative?
     
  3. Opengrep icon
     Like

    We’re excited to introduce Opengrep, an open-source static code analysis engine built to ensure code security testing remains truly open and accessible to everyone. 🚀

    Cost / License

    Since

    • Since 2025

    Platforms

    • Mac
    • Linux
    Good alternative?
     
  4. GitHub Launch Checklist audits a repository before it is published or promoted. It runs ten readiness checks - repository name, description, topics, README, license, demo link, installation section, contributing guide, issue templates and social preview - and reports a score...

    6 GitHub Launch Checklist alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Since

    • New

    Platforms

    • Windows
    • Mac
    • Linux
    • Docker
    • Python
    Good alternative?
     
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