
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: Hex Fiend is a fast and clever open source hex editor for macOS. It has a simple, easy-to-use interface for viewing and editing binary files in hexadecimal or ASCII. Useful for analyzing raw data, inspecting disk images, patching software, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API