Fiddler - Fiddler is a debugging program for websites.
Fig - Fast, isolated development environments using Docker.
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Teleconsole - Teleconsole is a free service to share your terminal session with people you trust.
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.
Shell Notebook - MacOS Terminal, reimagined