
Description: Regexxer is a powerful regular expression editor and tester for creating, testing and debugging regular expressions. It has an intuitive interface with features like syntax highlighting, explanation of regex components, and testing against sample inputs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Windows Grep is a command-line utility for searching text and retrieving matching lines in files. It allows using regular expressions to match complex patterns. As it runs on Windows, it provides grep functionality natively without needing additional Linux tools.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API