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Security

Free Snyk alternatives

Snyk (Find and fix vulnerabilities in code, dependencies and containers) is a commercial product. These 2 tools do the same job and are free to use or to self-host.
Short answer: the best free alternatives to Snyk are Semgrep and Trivy. Self-hosting is free; you pay only for the server (a small VPS is about $4–6/mo). Licenses and prices checked 2026-10-01.
  1. 1
    Semgrep

    Static analysis for finding bugs and security issues in code

    Static analysis with community rules.

    Open source (LGPL-2.1 (CE)) ·details

  2. 2
    Trivy

    Open-source scanner for vulnerabilities, misconfigs and secrets

    Scans images, repos and IaC for vulnerabilities.

    Open source (Apache-2.0) ·details

Want paid options too? See all Snyk alternatives or the full free alternatives list.

FAQ

Is there a free alternative to Snyk?+

Yes. Semgrep and Trivy do the same job for free; Semgrep and Trivy are open source.

What is the best open-source alternative to Snyk?+

Semgrep and Trivy are open source. Semgrep: Static analysis with community rules.

Open source: OSI-approved license. Free to self-host: the code is public and free to run yourself, with limits in the license.