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BitClamp, the encryption software for Mac OS X. Easily secure confidential documents and personal files with trusted 448-bit Blowfish, AES 256-bit and 256-bit Serpent encryption. Simply drag and drop the required files to encrypt your documents with industry-standard encryption methods for remarkable security.

BitClamp is the only brand of encryption software offering file mimicking - a feature used to hide encrypted data within other files for optimal security. In addition, smart Covert features can further disguise your files by giving them unrelated names. All of this and more makes BitClamp a trusted, easy-to-use and more...

What's New

Version 1.5.1:
  • [NEW] Refresh button added to password generator.
  • [NEW] You now have the option to save files in the same directory as the first file in the encryption list.
  • [Change] Nag window is now displayed on launch if you have not registered the application.
  • [Fix] Less CPU usage.
  • [Fix] The preferences will no longer allow you to always mimic nothing, causing nil object errors. more...


Mac OS X 10.4 or later (Leopard Compatible)

*Previously available here

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BitClamp User Discussion

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Beamy Member IconComment+200

It seems, that the software does not exist anymore.
The download link does not work, the website does not work, hmm...


Reply0 replies
Version 1.5.1
Bl0dwyn Member IconComment+13

I started the 15 day trial on this software, and on day one I had a query on how to make file mimicking work. I posted a query on the developers forum, and a day later I emailed their support email address.

My trial period is now pretty much over, and I have had no reply to my forum posting, nor to the email I sent to their support address.

This feels like abandonware to me, so I don't buy.

Reply0 replies
Version 1.5.1
softwaremgowerj Member IconComment+2

This is a brilliant program and a perfect solution for anyone who needs to keep anywhere from a few to a few hundred files secure and, if you use the file mimicking feature, hidden in plain sight. File mimicking is a very, very useful option and makes this app a superior solution to anything else I've tried, paid or not. The app is fast and easy to use and the developer is the most responsive and helpful I've yet run across.

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Version 1.5
MacFevre Member IconReview+20

The ability to take a text file, (or any file for that matter,) Compress it, Encrypt it, and hide it into a photo jpg, or xls, or any other kind of file is brilliant. Companies should be looking at this as standard practice for traveling. Look at people being stopped at airports and are forced to unlock their private company files for the authorities.

Any file that's encrypted can be forced open, by coercion to the owner or by brute force to the file. But what if all that is sitting there is a bunch of photos of your family? That actually opens to the picture when launched? Only you know what's hidden and encrypted on top of that. I don't see Disk Utility doing that.

Not that I have anything that's worth encrypting like that, but it's really nice to know it's there if I ever did. A must if you have something you would just rather keep to yourself, even if someone stole your computer, it would still be yours.

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Version 1.5
grahamw Member IconReview+2

Avoid this, it is a realbasic gui glued to a closed-source 3rd party encryption library. I doubt there is any validation of this library and I wouldn't trust the code or the encrypted files at all. If you need more than OS X provides natively, look at GNU PGP or PGP Desktop.

Reply1 reply
Version 1.1.2

I am disappointed the dev never posted a response to this charge. Tends to make me think it's true.

DannyCSS (Developer) Member IconDev+13
DannyCSS (Developer)

Just like to add a quick comment:
With 1.1 we added a new suite of algorithms and we are now stronger than disk utility. :-)

Reply0 replies
Version 1.1
Mr.Ash Member IconReview+16

Good app but useless.

You can use the OSX disk utility to create a 256bit encrypted disk image for free. In combination with automater it's also possible to create a program witch does the same job (also with drag & drop) for free.

It's up to you to pay 20$ or do it for free with OSX disk utility.

Reply1 reply
Version 1.0.5

Why is it useless? You definitely don't get 448 bit encryption with disk utility, nor do you get transferability and the ability to cloak your files.

You cannot open .dmg's in Windows, and you definitely cannot save the .dmg you create as a .png to hide its true contents, can you?

You might want to try the app out more, to see what it can really do.

Ronl Member IconComment+926

Anyone using a recent Mac can use DiskUtility to do this for free. Simply open DiskUtility and click on Help in the menubar and search for AES. Help will tell you how to set up a VERY secure, and VERY quick to open... i.e. literally a few seconds DMG. The encrypted DMGs can be easily set for sizes from MBs to GBs in size. VERY easy (no tech-savy needed) with either 128 or 256 bit encryption.

Reply0 replies
Version 1.0.5
fraXis Member IconComment+1

First class support.

I found a slight bug with the initial release version and sent off an e-mail to the developer. Within a matter of minutes I had a reply that told me he would look into it as quickly as possible.

Less than 48 hours, there was a fix available and a personal e-mail from the developer telling me that the fix was available.

After this, I registered my copy of BitClamp right away.

How often can you find a first rate program with first rate support? In my 25 years of PC/Mac experience; not very often.


Reply0 replies
Version 1.0.2
itaiferber Member IconReview+5

BitClamp is a great app. I'm very surprised to see the negative reviews on this.

BitClamp is very different from the encryption appications I've seen so far (Data Guardian, Exces).
Exces, for instance, creates a .dmg-like virtual disk that is encrypted with a password, but can only be opened using Exces.

Data Guardian creates a database of encrypted files that hold information. But this is limiting, because it does not encrypt whole folders and other files.

BitClamp, however, can encrypt multiple files, no matter what they are, and compresses them together into a file that does not rely on BitClamp to be opened.

And besides, the UI is clean and minimalistic and is incredibly easy to use.

Reply0 replies
Version 1.0.2
There are no Ratings for this App yet.
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Current Version (1.x)


Downloads 4,445
Version Downloads 2,688
License Shareware
Date 17 May 2008
Platform OS X / PPC 32 / Intel 32
Price $19.95