Online Regular Expression Tester / Debugger

Posted by Keefr July 10th, 2017

Markup / HTMLA guy on my team today shared this, and I had to immediately share as well. Regular Expression (RegEx) is super powerful, but can be very confusing, and a single character off can have big consequences, not work properly or cause a regular expression to fail completely.

Enter the site linked below, regular expressions 101. It allows you to test and debug regular expressions, and even its variations between PHP, JavaScript, Python and Go.

It’s cool in that as you put in RegEx, it code hints everything so you can fully understand everything in the string — which is nice when you find a possible solution on Stack Overflow or some other random development blog. It helps you parse out what the RegEx is actually doing.

The explanations are well done and it’s a tool I’m definitely bookmarking for the next time I’m in the regular expression world.

regular expressions 101

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