
Description: Sublist3r is an open source subdomain enumeration tool used for penetration testing. It helps security researchers identify subdomains of a target domain that may be vulnerable entry points.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OWASP Amass is an open source network mapping and asset discovery tool. It can passively collect information from public sources like certificate transparency logs and search engines to map out an organization's external attack surface.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API