
Description: Directory Opus is a popular and powerful file manager for Windows. It offers advanced customization options, dual pane browsing, file searching and previewing, and integration with many other programs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Double Commander is an open-source, cross-platform file manager with two panels side-by-side interface. It allows easy copy, move, delete, rename, search operations and has advanced features like custom commands, plugins, archives support and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API