
Description: Rulers is a free, open source screen ruler app for Windows, Mac, and Linux. It provides customizable rulers, guides, and tools for measuring objects on your screen with pixel perfect accuracy. Useful for designers, developers, and anyone needing to measure items digitally.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: JR Screen Ruler is a free on-screen pixel ruler for Windows. It allows you to accurately measure objects on your screen in pixels, centimeters, or inches. Useful for web designers and developers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API