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Is there any good regex webapps out there?

I'd like to be able to set which type of regex syntax is used, enter some text and a regex and get matches highlighted. Preferably with different colors so it's easy to detect what in the regex is causing the match.

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closed as off-topic by Al E., Vidar S. Ramdal, jonsca Mar 20 '15 at 22:08

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Application/website recommendations are off-topic and out of scope. It is better instead to use a particular web app or website and ask for help in any issues you have with it specifically." – Al E., Vidar S. Ramdal, jonsca
If this question can be reworded to fit the rules in the help center, please edit the question.

up vote 15 down vote accepted
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this answer makes me smile. +1 – Justin L. Jul 8 '10 at 9:49
1  
+1 for Rubular, it's a great tool. – Simone Carletti Jul 8 '10 at 9:51
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+1 for regexpal - using it for more than 6 years or so... – mbrochh Jul 8 '10 at 10:11
    
its hard to see for which of your given options people are now voting ... – akira Jul 8 '10 at 10:29
    
strfriend.com is no more – Eric Jun 9 '12 at 12:40

http://www.debuggex.com/
Includes visualizer for the pipes and colored visualizer for the test text matches.

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reAnimator is a great regular expression visualizer. It helped me optimize some tricky regexes.

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Great Tool, thanks! – Aaron Jul 9 '10 at 8:44

I've always used regexlib.com (here is their testing page, they even have a silverlight engine in there which is quite cool). They also have a great library of regexes that people have submitted.

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http://gskinner.com/RegExr is good.

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I use the RegexTester to do this, the site is pretty simple and does just what you ask.

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