Reggy

Reggy is a small OS X cocoa/objective-c application to very quickly visualize what a given regular expression will match given a test string. It will also tell you if...

Free Open Source Mac OS X

Regexp Testing Tool

Regexp testing tool allows to apply group of regexps to huge arrays of data (millions or so) in order to investigate search or search/replacement possibilities of regexp...

Free Mac OS X Windows Linux

PyRegex

PyRegex is an online Regular Expression tester for python dialect.

Free Open Source Web

RegExpEditor

What RegExpEditor is can be said easyest by telling what it is not: It is not an editor for regular expressions. Although it can be used for this purpose. Instead...

Free Open Source Mac OS X Windows Linux

Regularity

JavaScript regex tester for the macOS desktop.

Free Mac OS X

Expressions

Expressions is a minimal, distraction-free tool for experimenting with regular expressions. FEATURES - Minimalistic, non–distractive user interface. - Dark and...

Commercial

kiki

A free environment for regular expression testing (ferret). It allows you to write regexes and test them against a sample text, providing extensive output about the...

Free Open Source Linux

Oyster

Regular expressions are a powerful tool for developers, but they aren't the easiest things to build and debug. Oyster helps you interactively build and test them...

Commercial Mac OS X