
Description: Pythex is a free, open-source Python module and web application for testing, debugging and building regular expressions. It provides a simple interface for visualizing, building, testing and debugging regex.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: A beginner's guide to learning regular expressions. Covers the basics like metacharacters, quantifiers, character classes, grouping and more. Helps you understand regular expressions through examples and exercises.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API