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GitGuardian vs OWASP ZAP

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

Free tier available

Free tier

Free and open source

Open source

What drives the bill

The metric that actually scales your invoice.

Free tier covers small teams entirely; business pricing is quote-based per developer.

Free and open source. You pay in engineering time and CI minutes.

Free tier

Free for individuals and teams up to 25 developers.

Everything, self-hosted

Open source

Apache-2.0

Self-hostable

No-code authoring

Languages

JavaScriptPythonJavaGoRubyPHPC#
JavaPythonJavaScriptCodeless

Platforms

WebAPI
WebAPI

Fits teams

StartupScale-up / mid-marketEnterprise
Solo / side projectStartupScale-up / mid-marketEnterprise

Adoption

Widely used

GitGuardian · since 2017

Category standard

Checkmarx / OWASP · since 2010

Strengths

  • Validity checking distinguishes a live credential from a revoked one, which transforms triage priority.
  • Scans full commit history, where most leaked secrets actually live.
  • Free for teams up to 25 developers.
  • Free, with no licence limits on scanning or users.
  • The baseline scan runs in CI in a couple of minutes and catches real misconfiguration.
  • Active community and extensive add-on marketplace.

Limitations

  • Secrets scanning only — not a general security platform.
  • Historical scans on old repositories produce a large initial backlog.
  • Requires repository access, which needs a security review of its own.
  • Higher false-positive rate than commercial DAST tools.
  • Scanning authenticated, JavaScript-heavy applications requires meaningful configuration effort.
  • The interface is dated and the learning curve is real.

Best for

Any organisation with more than a handful of repositories and no secrets scanning today.

Any team that currently does no dynamic security testing at all.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.