1)   AsMask 2.6
AsMask can encrypt and hide all format secret files or text messages into an image. You can set a password to protect the encryption files and text messages. You can view the image hidden files and text messages as same as normal image.

 2)   Message Smuggler 2.2.10.8
Message Smuggler software | smuggle or hide text message into image | 256-bit encryption algorithm and password protect. Create secret picture message with certified 256-bit encryption algorithm and password protection. - absolute security

 3)   Message Smuggler Pro 2.2.10.7
Total privacy and cleaning solution - Enhanced version of Message Smuggler with over 1 million downloads. Send confidential data and files securely over the Internet by storing it in images. System cleaner with software autodetection - 1click clean