It helps to hide the data in various types of image and audio files. It is a command-line software where it is important to learn the commands to use it effectively.
2. Exif tool
Exif tool is a Kali Linux application that allows a user to view and manipulate the metadata of the image. An image can give tons of information like which device, ISO, date, time, lens type, flash settings, etc.
Binwalk is an open-source steganographic tool for analyzing, reverse engineering and extracting firmware images. This tool automatically detects and extracts hidden files.