dataTile for Simulator - Forget debugging in the console
Fiddler - Fiddler is a debugging program for websites.
TestProject - TestProject is the world’s first free cloud-based, community-powered test automation platform!
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
HyperDX - Fix bugs faster with affordable end-to-end webapp monitoring
HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.