
Description: Orion Viewer is a free open-source image viewer focused on speed and usability. It's lightweight with support for common raster image formats like JPEG, PNG, BMP, as well as RAW formats. Key features include basic image editing, exif data display, customizable themes, and customizable keyboard shortcuts.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: MJ PDF Reader is a free, lightweight PDF viewer for Windows. It allows you to view, print, and annotate PDF documents. Key features include tabbed browsing, search, bookmarks, and basic annotation tools.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API