
Description: Upzilla is an open-source crowdsourced alternative to Bugzilla, a defect tracking system. It allows teams to track software bugs and issues during development. Upzilla is web-based, customizable, and offers features like voting, attachments, due dates, and custom fields.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SMTP Diag Tool is a free, open-source Windows application used to diagnose issues with sending and receiving emails. It can test SMTP servers, validate email addresses, verify DNS records, and check for common email delivery problems.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API