stegify is a simple command line tool capable of fully transparent hiding any file within an image. This technique is known as LSB (Least Significant Bit) steganography





The Result file contains the Data file hidden in it. And as you can see it is fully transparent.


$ go get -u


As a command line tool

$ stegify -op encode -carrier <file-name> -data <file-name> -result <file-name>
$ stegify -op decode -carrier <file-name> -result <file-name>

When encoding, the file with name given to flag -data is hidden inside the file with name given to flag -carrier and the resulting file is saved in new file in the current working directory under the name given to flag -result. The file extension of result file is inherited from the carrier file and must not be specified explicitly in the -result flag.

When decoding, given a file name of a carrier file with previously encoded data in it, the data is extracted and saved in new file in the current working directory under the name given to flag -result. The result file won’t have any file extension and therefore it should be specified explicitly in -result flag.

In both cases the flag -result could be omitted and it will be used the default file name: result

Programmatically in your code

stegify can be used programmatically too and it provides easy to use functions working with file names or raw Readers and Writers. You can visit godoc under steg package for details.


If carrier file is in jpeg or jpg format, after encoding the result file image will be png encoded (therefore it may be bigger in size) despite of file extension inherited from the original carrier file (which is .jpeg or .jpg).

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