Regex Websites
regex101.com
Online regex tester, debugger with highlighting for PHP, PCRE, Python, Golang and JavaScript.
21,049 
$ 637,920.00
regextester.com
Regular Expression Tester with highlighting for Javascript and PCRE. Quickly test and debug your regex.
50,950 $ 263,520.00
regexone.com
RegexOne provides a set of interactive lessons and exercises to help you learn regular expressions
98,480 $ 136,080.00
pcre.org
The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API as well as a...
373,765 $ 22,140.00
regexpal.com
Test your Javascript and PCRE regular expressions online.
189,578 $ 58,200.00