
Description: Instant Username Search is a free online tool that allows you to check if a desired username or vanity URL is available across over 70 popular social media sites and apps. It provides real-time feedback on username availability to help users find an unused, unique username for their profiles.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Namechk is a free online tool that checks if your desired username or domain name is available across popular social networks and websites. It allows you to quickly search for name availability and find an unused, unique name for your brand.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API