My go-to is https://regex101.com/
Re:Show HN: Regex Cheatsheet
by huseyinkeles on Friday January 31, 2020 @11:05AM
(#22202722)
I've been using regex101 for many years and love it! The debugger [0] that it has is amazing!
Didn't know about this. Thanks!
We use it on slack and irc for debugging people's regular expressions all the time. Being able to have 30 revisions to a base regex to troubleshoot is fantastic.
Plus the quiz is awesome.
I love regex101. It uses webassembly for some of its engines
I use the same as a default. It's been a great help.
Well, there is a whole list of useful regex links posted 5 months ago when someone posted url to RegExr.
Here is my goto resource for checking regexpr with railroad diagrams: https://regexper.com/
It's how I learned regex years ago, and I still use it today to test/build more complex patterns.