Steghide - Steghide is a steganography program that is able to hide data in various kinds of image- and...
Hidden Bar - A ultra-light MacOS utility that helps hide menu bar icons.
OpenPuff - OpenPuff is a professional steganography tool: HW seeded random number generator (CSPRNG)
Hocus Focus - A Mac menu bar utility that hides your inactive windows
DeepSound - DeepSound is the way of hiding your message in an audio file.
Pliim - One click and be ready to go up on stage and present!