OWASP ZAP (Zed Attack Proxy) is one of the world's most popular free security tools and is actively maintained by a dedicated international team of volunteers. It can help automatically find security vulnerabilities in web applications while developing and testing.
Developer security platform for finding and fixing vulnerabilities
Snyk is a comprehensive developer security platform that helps teams find, prioritize, and fix security vulnerabilities in code, dependencies, containers, and infrastructure as code. It integrates seamlessly into development workflows and provides actionable insights to improve application security.