Static Application Security Testing (SAST) tools analyze source code to find vulnerabilities before applications run. The landscape has evolved significantly, with newer tools offering better accuracy, faster scans, and integration with modern development workflows.
Here's how the leading options compare.
Corridor
Corridor takes a different approach to static analysis. Rather than just scanning code after it's written, Corridor integrates directly with AI coding agents like Cursor and Claude Code to provide security feedback in real-time during code generation.
Corridor also scans pull requests, giving you full coverage alongside its real-time capabilities. The difference is in how findings are handled. Instead of generating a backlog of issues for developers to fix later, Corridor prevents vulnerabilities from being written in the first place by guiding AI agents toward secure patterns.
For teams using AI coding tools, this shift from detection to prevention dramatically reduces the friction between security and development velocity.
Semgrep
Semgrep is an open-source static analysis tool known for its speed and customizable rules. It uses a pattern-matching syntax that's easier to write than traditional SAST rules, making it accessible for teams that want to create custom checks.
Semgrep is fast and has a strong community rule library. However, it operates in the traditional scan-after-write model. It catches issues in CI/CD but doesn't integrate with AI coding agents or prevent vulnerabilities during generation. For teams heavily using AI tools, Semgrep works well as a backstop but doesn't address the root cause.
SonarQube
SonarQube is one of the most widely deployed code quality platforms. It covers security vulnerabilities alongside code smells, bugs, and technical debt. Many organizations already have it in their stack.
The challenge with SonarQube is noise. It reports on everything, which can overwhelm teams and lead to alert fatigue. Its security rules are also less specialized than dedicated security tools. SonarQube is solid for general code quality but often requires significant tuning to be useful for security-focused workflows.
Checkmarx
Checkmarx is an enterprise SAST platform with deep language support and comprehensive vulnerability detection. It's been in the market for years and has mature integrations with enterprise development environments.
Checkmarx is thorough but slow. Scans can take hours on large codebases, which doesn't fit well with fast-moving CI/CD pipelines. It also generates significant false positives, requiring dedicated security engineers to triage findings. Like other traditional SAST tools, it operates post-write and doesn't integrate with AI coding workflows.
Snyk Code
Snyk Code is Snyk's SAST offering, designed to be faster than legacy tools. It provides IDE integration and can surface findings as developers write code. However, teams using Snyk have to deal with false positives that take away time from development.
Why Corridor
Corridor is the only SAST tool that integrates directly with AI coding agents. While traditional tools scan code after it's written and create backlogs, Corridor prevents vulnerabilities during generation and catches anything remaining in pull requests. For teams using AI coding tools, this means better security with less friction.