RegExr

RegExr.com is an online tool to learn, build, and test Regular Expressions. It was created by Grant Skinner and the nice people at gskinner.com.

Free Open Source Web

regular expressions 101

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

Free Web

Expresso

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...

Free Windows

RegexBuddy

RegexBuddy is your perfect companion for working with regular expressions. Learning, creating, understanding, testing, using and saving regular expressions has never...

Commercial Windows

Debuggex

Debuggex is an intuitive visual regular expression debugger, tester, and helper. NOTE: Login/registration relies on Persona which is now shut down.

Freemium Web

Regex Hero

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

Free Windows Web

rubular

A ruby based regular expression editor

Free Web

RegexPal

An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.

Free Web

Multi String Replacer

Multi String Replacer is a small and portable application that can be used to replace multiple strings at once. Its main functionality is String Swapping in which can be...

Freemium $ $ $ Windows

Multi String Search

Search multiple strings occurrences simultaneously with the help of this piece of software that comes with support for regular expressions.

Freemium $ $ $ Windows

Visual REGEXP

This software will let you design your regexps by letting you type the expression and visualize its effect on a sample of your choice.

• Discontinued Visual REGEXP was last updated in 2006.

Free Open Source Windows Linux

Regulex

Regulex is an open-source, regular expression parser and visualizer. It's available online, can be embedded in other websites, or the code can be self-hosted as a...

Free Open Source Web Self-Hosted

The Regulator

The Regulator is an advanced Regular expressions testing tool, featuring syntax highlighting and web-service integration with Regexlib.coms database of online regular...

Free Open Source Windows

RegexMagic

Use RegexMagic to generate complete regular expressions to your specifications by using RegexMagics flexible patterns, instead of the cryptic regex syntax.

Commercial Windows

Regex Lab .NET

Regex Lab .NET is a full-featured application for editing regular expressions. The application features a modern, highly functional UI allowing increased productivity...

Free Open Source Windows