<p>How can I test the same regex against different regular expression engines?</p>

[{'answer_id': 32287, 'author': 'aku', 'author_id': 1196, 'author_profile': 'https://Stackoverflow.com/users/1196', 'pm_score': 3, 'selected': False, 'text': '<p><a href="http://www.regexbuddy.com/" rel="nofollow noreferrer">RegexBuddy</a> is a weapon of choice</p>\n'}, {'answer_id': 32288, 'author': 'JimmyJ', 'author_id': 2083, 'author_profile': 'https://Stackoverflow.com/users/2083', 'pm_score': 4, 'selected': False, 'text': '<p><a href="http://www.regexbuddy.com/" rel="noreferrer">RegexBuddy</a></p>\n'}, {'answer_id': 32290, 'author': 'Pat', 'author_id': 238, 'author_profile': 'https://Stackoverflow.com/users/238', 'pm_score': 7, 'selected': True, 'text': '<p>The most powerful free online regexp testing tool is by far <a href="http://regex101.com/" rel="nofollow noreferrer">http://regex101.com/</a> - lets you select the RE engine (PCRE, JavaScript, Python), has a debugger, colorizes the matches, explains the regexp on the fly, can create permalinks to the regex playground.</p>\n\n<p>Other online tools:</p>\n\n<ul>\n<li><a href="http://www.rexv.org/" rel="nofollow noreferrer">http://www.rexv.org/</a> - supports PHP and Perl PCRE, Posix, Python, JavaScript, and Node.js</li>\n<li><a href="http://refiddle.com/" rel="nofollow noreferrer">http://refiddle.com/</a> - Inspired by jsfiddle, but for regular expressions. Supports JavaScript, Ruby and .NET expressions.</li>\n<li><a href="http://regexpal.com/" rel="nofollow noreferrer">http://regexpal.com/</a> - powered by the <a href="http://xregexp.com/" rel="nofollow noreferrer">XRegExp</a> JavaScript library</li>\n<li><a href="http://www.rubular.com/" rel="nofollow noreferrer">http://www.rubular.com/</a> - Ruby-based</li>\n<li><a href="http://www.perlfect.com/articles/regextutor.shtml" rel="nofollow noreferrer">Perl Regex Tutor</a> - uses PCRE</li>\n</ul>\n\n<p>Windows desktop tools:</p>\n\n<ul>\n<li><a href="http://www.weitz.de/regex-coach/" rel="nofollow noreferrer">The Regex Coach</a> - free Windows application</li>\n<li><a href="http://www.regexbuddy.com/" rel="nofollow noreferrer">RegexBuddy</a> recommended by most, costs US$ 39.95</li>\n</ul>\n\n<p>Jeff Atwood [wrote about regular expressions]( post:).</p>\n\n<p>Other tools recommended by SO users include:</p>\n\n<ul>\n<li><a href="http://www.txt2re.com/" rel="nofollow noreferrer"><a href="http://www.txt2re.com/" rel="nofollow noreferrer">http://www.txt2re.com/</a></a> Online free tool to generate regular expressions for multiple language  (@<a href="https://stackoverflow.com/questions/4736/learning-regular-expressions#4763">palmsey</a> another thread)</li>\n<li>The Added Bytes <a href="http://www.addedbytes.com/cheat-sheets/regular-expressions-cheat-sheet/" rel="nofollow noreferrer">Regular Expressions Cheat Sheet</a> (@<a href="https://stackoverflow.com/questions/4736/learning-regular-expressions#4739">GateKiller</a> another thread)</li>\n<li><a href="http://regexhero.net/" rel="nofollow noreferrer">http://regexhero.net/</a> - The Online .NET Regular Expression Tester. Not free.</li>\n</ul>\n'}, {'answer_id': 32291, 'author': 'Will Dean', 'author_id': 987, 'author_profile': 'https://Stackoverflow.com/users/987', 'pm_score': 1, 'selected': False, 'text': '<p>Regexbuddy does all this. <a href="http://www.regexbuddy.com/" rel="nofollow noreferrer">http://www.regexbuddy.com/</a></p>\n'}, {'answer_id': 32292, 'author': 'Sam Hasler', 'author_id': 2541, 'author_profile': 'https://Stackoverflow.com/users/2541', 'pm_score': 1, 'selected': False, 'text': '<p>see the accepted answer to this question: <a href="https://stackoverflow.com/questions/4736/learning-regular-expressions#4741">Learning Regular Expressions</a></p>\n'}, {'answer_id': 32294, 'author': 'Galwegian', 'author_id': 3201, 'author_profile': 'https://Stackoverflow.com/users/3201', 'pm_score': 2, 'selected': False, 'text': '<p><a href="http://www.regexbuddy.com/" rel="nofollow noreferrer">RegexBuddy</a> is great!!!</p>\n'}, {'answer_id': 32298, 'author': 'Neall', 'author_id': 619, 'author_profile': 'https://Stackoverflow.com/users/619', 'pm_score': 3, 'selected': False, 'text': '<p><a href="http://www.rubular.com/" rel="noreferrer">Rubular</a> is free, easy to use and looks nice.</p>\n'}, {'answer_id': 32300, 'author': 'Tim Cochran', 'author_id': 2626, 'author_profile': 'https://Stackoverflow.com/users/2626', 'pm_score': 3, 'selected': False, 'text': '<p>I use Expresso (<a href="http://www.ultrapico.com/" rel="noreferrer">www.ultrapico.com</a>).  It has a lot of nice features for the developer.  The Regulator used to be my favorite, but it hasn\'t been updated in so long and I constantly ran into crashes with complicated RegExs.</p>\n'}, {'answer_id': 32319, 'author': 'Pat', 'author_id': 36, 'author_profile': 'https://Stackoverflow.com/users/36', 'pm_score': 0, 'selected': False, 'text': '<p>RegExBuddy so far I concur with and endorse.</p>\n'}, {'answer_id': 32327, 'author': 'Adam Haile', 'author_id': 194, 'author_profile': 'https://Stackoverflow.com/users/194', 'pm_score': 2, 'selected': False, 'text': '<p>I agree on RegExBuddy, but if you want free or when I\'m working somewhere and not on my own system <a href="http://gskinner.com/RegExr/" rel="nofollow noreferrer">RegExr</a> is a great online (Flash) tool that has lots of pre-built regex segments to work with and does real-time pattern matching for your testing.</p>\n'}, {'answer_id': 32354, 'author': 'Sébastien RoccaSerra', 'author_id': 2797, 'author_profile': 'https://Stackoverflow.com/users/2797', 'pm_score': 3, 'selected': False, 'text': "<p>If you are an Emacs user, the command <code>re-builder</code> lets you type an Emacs regex and shows on the fly the matching strings in the current buffer, with colors to mark groups. It's free as Emacs.</p>\n"}, {'answer_id': 32365, 'author': 'Joseph Pecoraro', 'author_id': 792, 'author_profile': 'https://Stackoverflow.com/users/792', 'pm_score': 3, 'selected': False, 'text': '<p>Here are some for the Mac: (<em>Note: don\'t judge the tools by their websites</em>)</p>\n\n<ul>\n<li><a href="http://homepage.mac.com/roger_jolly/software/" rel="noreferrer">RegExhibit</a> - My Favorite, powerful and easy</li>\n<li><a href="http://code.google.com/p/reggy/" rel="noreferrer">Reggy</a> - Simple and Clean</li>\n<li><a href="http://robrohan.com/2008/06/25/mac-os-x-regex-widget-update-17/" rel="noreferrer">RegexWidget</a> - A Dashboard Widget for quick testing</li>\n</ul>\n'}, {'answer_id': 32398, 'author': 'Teifion', 'author_id': 1384652, 'author_profile': 'https://Stackoverflow.com/users/1384652', 'pm_score': 1, 'selected': False, 'text': '<p>I\'ll add to the vote of <a href="http://reggyapp.com/" rel="nofollow noreferrer">Reggy</a> for the Mac, gonna try out some of the other ones that Joseph suggested and upvote that post tomorrow when my limit gets reset.</p>\n'}, {'answer_id': 32591, 'author': 'Dinah', 'author_id': 356, 'author_profile': 'https://Stackoverflow.com/users/356', 'pm_score': 1, 'selected': False, 'text': '<p>for online: <a href="http://regexpal.com/" rel="nofollow noreferrer"><a href="http://regexpal.com/" rel="nofollow noreferrer">http://regexpal.com/</a></a>\nfor desktop: <a href="http://www.weitz.de/regex-coach/" rel="nofollow noreferrer">The Regex Coach</a></p>\n'}, {'answer_id': 32641, 'author': 'Lee Theobald', 'author_id': 1900, 'author_profile': 'https://Stackoverflow.com/users/1900', 'pm_score': 1, 'selected': False, 'text': '<p>+1 For Regex Coach here.  Free and does the job really well.</p>\n\n<p><a href="http://www.weitz.de/regex-coach/" rel="nofollow noreferrer">http://www.weitz.de/regex-coach/</a></p>\n'}, {'answer_id': 32903, 'author': 'Josh Miller', 'author_id': 2818, 'author_profile': 'https://Stackoverflow.com/users/2818', 'pm_score': 1, 'selected': False, 'text': '<p>I am still a big <a href="http://weblogs.asp.net/rosherove/pages/tools-and-frameworks-by-roy-osherove.aspx" rel="nofollow noreferrer">The Regulator</a> fan.<br>\nThere are some stability problems but these can be fixed by disableing the Intellisense.  It gets mad with some expressions and typos in building an expression.</p>\n\n<p>Would love it if <a href="http://weblogs.asp.net/rosherove/default.aspx" rel="nofollow noreferrer">Roy Osherove</a> updated, but looks like he is busy with other things.</p>\n'}, {'answer_id': 32913, 'author': 'Brendon-Van-Heyzen', 'author_id': 1425, 'author_profile': 'https://Stackoverflow.com/users/1425', 'pm_score': 2, 'selected': False, 'text': '<p>couple of eclipse plugins for those using eclipse,<BR>\n<a href="http://www.brosinski.com/regex/" rel="nofollow noreferrer">http://www.brosinski.com/regex/</a></p>\n\n<p><a href="http://www.bastian-bergerhoff.com/eclipse/features/web/QuickREx/toc.html" rel="nofollow noreferrer">http://www.bastian-bergerhoff.com/eclipse/features/web/QuickREx/toc.html</a></p>\n'}, {'answer_id': 32965, 'author': 'grapefrukt', 'author_id': 914, 'author_profile': 'https://Stackoverflow.com/users/914', 'pm_score': 0, 'selected': False, 'text': '<p><a href="http://gskinner.com/RegExr/" rel="nofollow noreferrer">RegExr</a> for testing with the Actionscript 3 (whichever standard that may be)</p>\n'}, {'answer_id': 71304, 'author': 'Benjol', 'author_id': 11410, 'author_profile': 'https://Stackoverflow.com/users/11410', 'pm_score': 1, 'selected': False, 'text': '<p>I like to use this online one:\n<a href="http://www.cuneytyilmaz.com/prog/jrx/" rel="nofollow noreferrer">http://www.cuneytyilmaz.com/prog/jrx/</a>\nOf course, it\'ll be javascript regexp, but I\'ve never yet done anything clever enough to notice the difference.</p>\n'}, {'answer_id': 72951, 'author': 'Mick', 'author_id': 12458, 'author_profile': 'https://Stackoverflow.com/users/12458', 'pm_score': 1, 'selected': False, 'text': '<p>How much is your time worth? Pay the $40 and get RegexBuddy. I did, and I even upgraded from 2.x version to 3.x. It has paid for itself many times over.</p>\n'}, {'answer_id': 133395, 'author': 'Sprogz', 'author_id': 7508, 'author_profile': 'https://Stackoverflow.com/users/7508', 'pm_score': 3, 'selected': False, 'text': '<p>I use the excellent and free <a href="http://www.radsoftware.com.au/regexdesigner/" rel="noreferrer">Rad Software Regular Expression Designer</a>.</p>\n\n<p>If you just want to write a regular expression, have a little help with the syntax and test the RE\'s matching and replacing then this fairly light-footprint tool is ideal.</p>\n'}, {'answer_id': 678051, 'author': 'Nick', 'author_id': 3233, 'author_profile': 'https://Stackoverflow.com/users/3233', 'pm_score': 2, 'selected': False, 'text': '<p>In the standard <strong>Python</strong> installation there is a "Tools/scripts" directory containing <strong>redemo.py</strong>. </p>\n\n<p>This creates an <em>interactive</em> Tkinter window in which you can experiment with regexs.</p>\n'}, {'answer_id': 842003, 'author': 'Steve Wortham', 'author_id': 102896, 'author_profile': 'https://Stackoverflow.com/users/102896', 'pm_score': 2, 'selected': False, 'text': '<p>In the past I preferred The Regex Coach for its simplistic layout, instantaneous highlighting and its price (free).</p>\n\n<p>Every once in awhile though I run into an issue with it when trying to test .NET regular expressions.  For that, it turns out, it\'s better to use a tool that actually uses the .NET regular expression engine.  That was my whole reason to build <a href="http://regexhero.net/" rel="nofollow noreferrer">Regex Hero</a> last year.  It runs in Silverlight, and as such, runs off of the .NET Regex Class library directly.</p>\n'}, {'answer_id': 870654, 'author': 'Kim', 'author_id': 52559, 'author_profile': 'https://Stackoverflow.com/users/52559', 'pm_score': 2, 'selected': False, 'text': '<p><a href="http://kodos.sourceforge.net/" rel="nofollow noreferrer">Kodos</a> of course. Cause it\'s Pythonic. ;)</p>\n'}, {'answer_id': 1755538, 'author': 'user213691', 'author_id': 213691, 'author_profile': 'https://Stackoverflow.com/users/213691', 'pm_score': 1, 'selected': False, 'text': '<p>I personally like the <a href="https://addons.mozilla.org/en-US/firefox/addon/2077" rel="nofollow noreferrer">Regular Expression Tester</a>.</p>\n\n<p>It\'s a free firefox plugin, so always on!</p>\n'}, {'answer_id': 1874257, 'author': 'bora.oren', 'author_id': 56470, 'author_profile': 'https://Stackoverflow.com/users/56470', 'pm_score': 1, 'selected': False, 'text': '<p>Also <strong><a href="http://myregexp.com/eclipsePlugin.html" rel="nofollow noreferrer">this regex plugin</a></strong> can be useful for <strong><a href="http://eclipse.org" rel="nofollow noreferrer">eclipse</a></strong> and <strong><a href="http://www.jetbrains.com/idea/" rel="nofollow noreferrer">idea</a></strong> users.</p>\n'}, {'answer_id': 4411942, 'author': 'roman m', 'author_id': 3661, 'author_profile': 'https://Stackoverflow.com/users/3661', 'pm_score': 1, 'selected': False, 'text': '<p>I like <a href="http://regexhero.net/tester/" rel="nofollow">http://regexhero.net/tester/</a> a lot</p>\n'}, {'answer_id': 5691709, 'author': 'Yaplex', 'author_id': 199027, 'author_profile': 'https://Stackoverflow.com/users/199027', 'pm_score': 1, 'selected': False, 'text': '<p>Check out <a href="http://alexandershapovalov.com/regular-expressions-tester-regex-master-74/" rel="nofollow">Regex Master</a> which is free and open source <a href="http://alexandershapovalov.com/regular-expressions-tester-regex-master-74/" rel="nofollow">regular expression tester</a></p>\n'}, {'answer_id': 9800537, 'author': 'loki', 'author_id': 1281886, 'author_profile': 'https://Stackoverflow.com/users/1281886', 'pm_score': 0, 'selected': False, 'text': '<p><a href="http://rgx-extract-replace.appspot.com" rel="nofollow">http://rgx-extract-replace.appspot.com</a>\nhas the functionality to enlist the captured regex groups formatted in columns and\noptionally can replace the matched patterns in the input text.</p>\n'}, {'answer_id': 24241199, 'author': 'Girvan', 'author_id': 552940, 'author_profile': 'https://Stackoverflow.com/users/552940', 'pm_score': 1, 'selected': False, 'text': '<p>This regex tester able to test javascript, php and python\n<a href="http://www.piliapp.com/regex-tester/" rel="nofollow">http://www.piliapp.com/regex-tester/</a></p>\n'}]
['https://Stackoverflow.com/questions/32282', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2820/']