LinkedIn Learning - Online training through LinkedIn's professional network.
httpbin(1) - HTTP request and response service
Fluany - Everything you need to force your mind to learn
HTTPDump - A simple, beautiful Webhook debugging tool.
Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.