httpbin(1) - HTTP request and response service
LinkedIn Learning - Online training through LinkedIn's professional network.
HTTPDump - A simple, beautiful Webhook debugging tool.
Always Learning - The best resources for learning programming and design
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Udemy - Online Courses - Learn Anything, On Your Schedule