Replay - One-Click Video Editor for iOS
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
Reactime - Time travel debugging tool, visualizing and tracing state
Regulex - Open-source, regular expression parser and visualizer.
HTTPDump - A simple, beautiful Webhook debugging tool.