
Description: Free Ruler is a free screen ruler utility for Windows that allows you to measure objects on screen using horizontal, vertical, and angle rulers. It has basic measurement features with a simple and lightweight interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Shottr is a free and open-source screenshot tool for Windows. It provides basic screenshot capturing and editing features like adding text, arrows, highlighting etc. Shottr is good for quick annotation of screenshots.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API