Snyk vs CodeQL: Free SAST Tools Compared (2026)

Quick Verdict Snyk Code and CodeQL represent two fundamentally different philosophies for static application security testing. Snyk Code is a managed, AI-driven SAST platform built for developer adoption - fast scans, zero configuration, AI-generated fix suggestions, and a polished UI. CodeQL is GitHub's open semantic code analysis engine built for analytical depth - a full query language, custom vulnerability research, and interprocedural data flow analysis that can trace vulnerability patterns across arbitrarily complex codebases. If you can only pick one: Choose Snyk Code if your priority is getting developers to scan regularly with minimal friction and act on results. Snyk delivers scan results in seconds, surfaces AI-powered fix suggestions inline in pull requests, and offers a free tier that works without any configuration beyond connecting a repository. Choose CodeQL if your team has dedicated security engineers who write custom analysis queries, you are running GitHub Advanced