RegexBuddy Alternatives

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

Open Source

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

The fastest way to send files over the internet

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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.

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

regex cheatsheet for the haters

Open Source

A ruby based regular expression editor

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.

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

The Regex Coach is a graphical application for Windows which can be used to experiment with...

An Ultimate Regex Editor for macOS

free

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

Open-source, regular expression parser and visualizer.