HTTP Debugger - Debug HTTP API calls to a back-end and between back-ends. Easy of use, clean UI, and short ramp-up time. Not a proxy, no network issues!
Checkmarx - The industry’s most comprehensive AppSec platform, Checkmarx One is fast, accurate, and accelerates your business.
Google Chrome Developer Tools - Get started with Google Chrome's built-in web developer tools.
Veracode - Veracode's application security software products are simpler and more scalable to increase the resiliency of your application infrastructure.
Fiddler - Fiddler is a debugging program for websites.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab