Snyk

Snyk scans your code, open-source dependencies, container images, and infrastructure-as-code for security vulnerabilities — and fixes them automatically via pull requests rather than just flagging them. Where most security scanners produce reports you have to act on manually, Snyk generates the fix and opens the PR. It integrates into the developer workflow at every stage: IDE plugin catches issues as you code, CI/CD scan blocks vulnerable builds, and the container scanner covers Docker images before deployment. The developer-first approach means security gets fixed at the source rather than batched into a quarterly security sprint.