
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: Catch22 HexEdit is a free hex editor software for Windows. It allows users to view and edit the raw binary content of files. Features include powerful search and replace, checksum/hash generation, file comparison, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API