
Description: Kaitai Struct is an open-source binary data parsing language and library for parsing complex file formats. It allows developers to describe file formats and then generate code in different target languages to easily read and process those formats.
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