What's a good online regex editor?

Question

I'm looking for something that supports ajax so it's more responsive. It should support the same regex flavor that PHP does. Normally I use Rubular, which is a good example of what I'm asking for, but the problem is that it's based on Ruby's regex engine, which does not support lookaheads or lookbehinds (which are supported in PHP).

Answer 1

I normally use this flex one, which is also available as an AIR app.

http://www.gskinner.com/RegExr/

And in case you were wondering, it does support lookahead/behinds :)

Answer 2

If you can switch from a browser-based app to a desktop app and are using Windows, try Regex Coach. It uses Perl-compatible regular expressions.

Answer 3

As for me, the best regex editor is gskinner. It provides all options, which are needed with PHP development. At least for my cases.

Also it has dictionary about majority of regex expressions and has beatiful tips, when the pointer is hovering above the snippet of your regex.

I found it the most appropriate regex editor. I hope, you'll enjoy it too.