
Description: FlexHex is a cross-platform hex editor for viewing, editing, analyzing, and comparing binary files. It includes features like tabs, multiple data views, undo/redo, powerful search and replace tools, checksums/hashes, insertion of byte patterns, offset manager, data inspector, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: HxD is a free and open-source hex editor, disk editor, and memory editor for Windows. It allows users to view, edit, analyze, modify, and export raw binary data and files in hexadecimal or ASCII. Common uses include editing game hacks and mods, low-level hard drive editing, analyzing network packets, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API