Requestly is a local-first, lightweight developer toolkit designed to streamline API development, testing, and debugging workflows. It offers a powerful HTTP interceptor to modify, mock, and debug network requests directly from your browser.Build frontend faster without waiting for backend.The platform includes an API client for development and testing, supports API mocking with GraphQL, and enables cross-device testing. It's particularly valuable for frontend developers, QA engineers, and support teams who need to simulate edge cases and override scripts.Core FeaturesUse CasesHTTP InterceptionFrontend DevelopmentAPI MockingQA TestingAPI ClientSupport Debugging