Top 20 products relevant to Programming Tools and Productivity

Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.

RegExr.com is an online tool to learn, build, and test Regular Expressions.

Open Source

The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.

regex cheatsheet for the haters.

Open Source

Open-source, regular expression parser and visualizer.

RegexPlanet offers a free-to-use Regular Expression Test Page to help you check RegEx in Ruby free-of-cost.

Welcome to the fantastic world of nerdy regex fun!

RegexBuddy is your perfect companion for working with regular expressions.

Tuple is a Mac-only remote pair programming tool for discerning developers.

RegexOne offers learning regular expressions with simple, interactive examples.

Patterns is a simple yet powerful tool for working with regular expressions.

Online Silverlight regular expression tester with instantaneous highlighting, C# and VB.NET code generation, code completion, regex analysis, benchmarking, and more.

Regex Widget is a lightweight, easy-to-use regular expression tester released under the LGPL license.

Pythex is a regular expression editor exclusively for Python.

Debuggex is an intuitive visual regular expression debugger, tester, and helper.

ExtendsClass CyrilEx Regex Tester is an Online Toolbox that allows you to test regular expressions in MySQL, PHP, Java, Javascript, Python, and Ruby.

Code search that keeps you coding.

Grammarly For Programmers.

RegEx Lab allows you to test regular expressions.

An app to play with regular expressions. Easily and nicely.