RegexBuddy - RegexBuddy is your perfect companion for working with regular expressions.
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Regex Forge - An Ultimate Regex Editor for macOS
Ray - The super remote that changes your TV forever
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
regular expressions 101 - Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.