A fun, easy way to communicate privately over the internet.

StegaMail is an application that enables hiding text in image files. Text is encoded in the image color information, all Qt supported image formats may be used, but the encoded image must use a lossless format like png or bmp.

The free edition does not permit selection of an encode/decode key, any text encoded will be decodable by anybody who has a copy of StegaMail. The paid edition allows creation of "Stealthy" encoded images with no watermark and a key of your choosing; someone would have to guess that text is encoded in the image, and then guess the key to decode the text.

Stealthy encoding does not make visible changes, every graphic on this page has hidden messages in it. However, StegaMail is detectable by hard core steganography researchers, and if a secret is thought to be valuable enough to make a serious effort at decoding, the 56 bit key isn't unbreakably strong cryptography.

When using Stealthy encoding in an image that nobody suspects of hiding a message and a hard to guess key, you should be reasonably assured that your private communications over the internet will remain private. StegaMail is fun, easy privacy for ordinary people, not undetectable unbreakable steganographic cryptography for terrorists and criminals.

Although you can input a key of any length, in order to self classify as 5D992b - NLR. No Encryption Registration Number (ERN) required, keys are hashed and compressed to 56 bits. Commodity Classification Automated Tracking System reference number G144010 issued by the U.S. Department of Commerce Bureau of Industry and Security May 9, 2012.