Requestly is an Open Source developer tool helping over 250K+ frontend developers & QAs in 14000+ organizations across the world. Requestly accelerates building, testing & debugging web applications with HTTP Rules, Mock Server, SessionBook & API Client. Requestly is available as Browser Extension & Desktop App for all major platforms. You can make it part of your SDLC and accelerate your development and testing with less clutter and more control over your environments.