Free Code Checker | Snyk

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Avoid the refactoring fire drill. Debug as you develop.

Snyk’s AI-powered code checker scans your code for security and quality issues and provides actionable advice to help you drive a quick fix.

Fast & actionable

Analyze your code in seconds and get actionable fix advice

Comprehensive

Find and fix issues in both the open source you’re using and your own code

Accuracy powered by AI

Snyk’s AI engine has scanned 500,000+ open-source repositories to increase accuracy

Integrated in your IDE

Scan your code and get fix advice in your favorite IDEs, including IntelliJ, PyCharm, and VS Code

Real-time scan results

See results as you code, with scans 54x faster than other tools

Fix quickly and move on

Get actionable fix advice and examples, so you can fix quickly and get back to coding

Check your code in your IDE, Git repo, and CI/CD

Catch (and fix) JavaScript, TypeScript, Java, and Python issues at every stage.