8 Best Free and Open Source Steganography Tools

Steganography is the art and science of concealing messages in other messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message. It’s a form of security through obscurity. Steganography is often used with cryptography. Plainly visible encrypted messages, no matter how unbreakable they are, arouse interest. This weakness is avoided with steganography.

Hiding messages is not new. Before the digital age, messages were hidden with invisible ink, subtle indentations in paper, messages written in Morse code that are knitted into an item of clothing, and even tattooing messages under the hair of messengers.

Ideally, the original message is not noticeably degraded by presence of a hidden message. As a result, the most effective techniques tend to make use of data that contains a lot of redundancy, such as raw audio and image files. Steganography works much less effectively, if at all, with efficient compressed formats such as JPEG.

We recommend the following steganography tools captured in a LinuxLinks-style ratings chart. All the software is free and open source goodness.

Ratings chart for best free and open source steganography tools

Let’s explore the steganography tools. For each program we have compiled its own portal page, a full description with an in-depth analysis of its features, together with links to relevant resources.

Steganography Tools
OpenStegoJava based tool to hide secret data in image files
stegifyTool written in Go for LSB steganography
SteganoSupports hiding data in PNG images via LSB encoding
SnowWhitespace steganography program
SteganorouteSend steganographed text messages to mtr with fake hops in the network
SteghideUses an algorithm which is undetectable by color-frequency tests
StegoshareJava based steganography tool
WavstegUses least significant bit steganography to hide a file in .wavs
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11 months ago

stegify is pretty useful