
Description: Debuggex is a free online visual regex tester. It allows you to visually construct regex patterns and test them against input strings to see if there is a match.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: RegexPal is a free regular expression tester and visualizer. It allows you to easily test regex patterns, analyze them and understand how they work. Useful for learning and debugging regular expressions.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API