
Description: PixelPerfect is a graphic design and photo editing software that focuses on pixel-based editing. It provides tools for drawing, painting, masking, animations, layers, and effects along with support for PSD files.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Overlay2 is a storage driver for Docker that leverages the layering filesystem of UnionFS to enable image layers and containers to share files efficiently. It improves upon the older Overlay driver with enhanced performance and stability.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API