CodeQL vs Checkmarx One

From $30 per committer/month (GitHub Advanced Security, indicative)

Quote on request

Free on public repos. Private repositories require GitHub Advanced Security, priced per active committer.

Enterprise annual licensing, typically by developer count or lines of code. Six figures at scale.

Free for public repositories on GitHub.

Free trial.

Widely used

GitHub (Microsoft) · since 2019

Widely used

Checkmarx · since 2006

• Interprocedural dataflow analysis finds real vulnerabilities that regex- and pattern-based tools cannot see.
• Free on public repositories, with results in the GitHub security tab.
• Custom queries let you encode organisation-specific security rules.

• Very deep SAST analysis with wide language coverage including legacy enterprise languages.
• One platform and one risk view across every scan type.
• Strong compliance and audit reporting.

• Writing custom CodeQL queries is a specialist skill with a steep learning curve.
• Analysis is slow — minutes to tens of minutes, so it fits nightly better than per-commit.
• Private-repo licensing through Advanced Security is expensive at scale.

• Expensive, with a long procurement and deployment cycle.
• High false-positive volume typical of deep SAST; tuning is a project.
• Scans are slow relative to developer-first tools.

GitHub-hosted projects wanting deep static security analysis, free if the repo is public.

Large enterprises with a security function and regulatory obligations.