Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.
Cost / License
- Free
- Proprietary
Platforms
- Online

Regex.ai is described as 'AI-powered tool that generates regular expressions with ease and accuracy. It allows users to create regular expressions that match specific patterns with our easy-to-use interface and convenient UI/UX' and is an app. There are more than 25 alternatives to Regex.ai for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best Regex.ai alternative is regular expressions 101, which is free. Other great apps like Regex.ai are RegExr, RegexMate, Wildcard and RegexBuddy.
Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.

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.

RegexMate offers seamless regex crafting and testing on macOS and iOS. Its minimalist interface provides an instant live preview, and users can save their expressions into a library for quick reference. A comprehensive guide with tutorials is always accessible, with light and dark mode options.






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



Regex Generator is a tool to generate simple regular expressions. The goal is that people with less experience can create regex smoothly.

The only one Regular Expression tester you need, that will help you to test your regular expressions in flavors:


.NET regular expression tester with instantaneous highlighting, code completion, and C# and VB.NET code generation.



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

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

Patterns is a simple yet powerful tool for working with regular expressions. Build great patterns quickly and effortlessly with syntax coloring and with matching and replacing occurring in real time.
