
Description: OpenSSH is a free and open source suite of network connectivity tools for remote login and other secure network services over an unsecured network. It provides secure encrypted communication channels between two devices.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Putty is a popular SSH and telnet client for Windows. For Mac users, some good alternatives are Termius, Secure Shellfish, and iTerm2. These provide similar connectivity options with added features like multi-tab terminal access, encrypted connection saving, and rich text formatting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API