
Description: Downstream is an open-source automation server designed to help teams collaborate on workflows and integrated systems. It provides a visual workflow editor, scheduler, notifications, reporting, and APIs to connect applications.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: BlackHole Music Player is an open-source, minimalist music player for macOS. It has a clean and intuitive interface allowing users to easily manage large music libraries. Key features include gapless playback, last.fm scrobbling support, and audio device routing.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API