httpbin(1) - HTTP request and response service
Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).
HTTPDump - A simple, beautiful Webhook debugging tool.
stretchly - break time reminder app
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
StretchMinder - Work break timer with guided movement & breathing exercises