Cost / License
- Free
- Proprietary
Platforms
- Online

Expressions is described as 'Minimal, distraction-free tool for experimenting with regular expressions' and is a regular expression editor in the development category. There are more than 25 alternatives to Expressions for a variety of platforms, including Windows, Web-based, Mac, Linux and Self-Hosted apps. The best Expressions alternative is regular expressions 101, which is free. Other great apps like Expressions are RegExr, Regex Forge, Expresso and Wildcard.

jRegExAnalyser is an interactive tool written in Java to write, test, debug, analyse and profile regular expressions. Its free and Open Source software, licensed under the terms of GPLv2 with Class Path Exception.

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

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





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 results.

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


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 easily and quickly done. String swapping consists on replacing WordX with WordY and WordY with WordX.


Having trouble getting your regular expressions just right? Not sure what they match and what they leave out? Tired of having to write test programs every time? RegExhibit can help.

RegEx Lab allows you to test regular expressions. The app highlights and underlines text to show matches and capture groups. There's also a handy cheatsheet and a results list view. It has a replace feature too.


DevUtilHub provides 24+ free online developer tools including regex tester, Base64 encoder/decoder, JWT debugger, JSON formatter, hash generators, and more. All tools run entirely in your browser for maximum privacy and speed. No signup required.

