Clotho lets you hide files or folders in other files

Martin Brinkmann
Jun 22, 2012
Updated • Jul 23, 2013
Software, Windows software

If you want to hide files on a hard drive, you have quite the options at hand to do so. You can simply create a password protected archive, use True Crypt or another encryption software, maybe even with a hidden volume inside, or use an easy to use program like Clotho which allows you to hide files inside other files or folders.

Hiding in the latter case does not mean setting a file's attribute to hidden, but to move the file or folder that you want to hide inside another file that you select. Other users would then see only the file that you have used for the hiding, but not the actual file or folder that you decided to hide on your system.

When you start Clotho after installation you are automatically taken to the creation tab where you can select the mask file, which is the file that you will use to hide another file or folder in to, and the file or folder that you want to hide. A new file name is generated automatically that you can change if you want.

Clotho will automatically display the estimated size of the new file in the interface. The options that are displayed on the page make the program even more interesting.

Here you can select to encrypt, compress or obfuscate data among other options.

  • Compress reduces the file size of the resulting file.
  • Obfuscate scrambles the data without damaging it
  • Encrypting protects the hidden file from being accessible even if it is somehow extracted

The program offers to make the files compatible with winrar, so that they can be extracted with the program or a comparable archiver.

The unpack tab lets you extract the hidden file or folder from the selected source file again. Depending on your selections, you may need to supply a password before this happens. Here you can also select to clean the source file which basically removes the hidden data permanently from it.

Closing Words

Clotho can be useful if you just want to hide a single file or folder on your system. I personally would prefer using a True Crypt container for that with a hidden volume, but that's more difficulty to setup.


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  1. Mikey said on July 22, 2012 at 12:54 pm

    I agree, just tried it out. Works quite nicely, and the process seems just like steganography from what I can tell. You’ve got my attention, now I’m interested. But much like steganography from five years back, I will like to know how easily (or not) a prying expert would be able to identify a volume as having a file inside it. I haven’t tried Steg since 2005, so it’s been awhile, but I remember it was quite easy then. This however, seems to include extra features — compression, password protection, data scramble, and some special Winrar compatible mode.

    Can’t find anything else on the net at the moment.

  2. BalaC said on June 25, 2012 at 9:30 am

    This reminds me about Steganography ( ) which is used in 9/11 attacks

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