
Description: Outguess is an open-source steganography tool that allows hiding data within various kinds of image and audio files. It provides techniques to embed hidden information into redundant bits of data sources. The intended use is for safely transferring information between parties.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: The Hider is a free, open-source program that allows you to hide files, folders, partitions and even entire operating systems. It uses advanced steganography techniques to conceal data within image and audio files.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API