Cloudfogger

When you upload files to cloud services like Dropbox, Google Drive, and SkyDrive, they are automatically encrypted to protect your personal documents from others. To add extra security, though, you'll need to use an encryption program for cloud storage services to encrypt your files completely.

Cloudfogger uses the AES 256-bit encryption algorithm. The first time you use it, you'll have to decide whether to register Cloudfogger for use on multiple devices or set a specific encryption for your PC. It's advisable to create an account in order to use the tool even when you're not at home.

Once you're registered, you can choose which folders to protect. Although there's no size limit, you can choose everything you have on a single cloud, or only one per server, depending on what you want. Cloudfogger also lets you specify email addresses for people with whom you want to share your documents so they won't be encrypted when they are downloaded.

If you want to protect your files, Cloudfogger is an ideal tool to safeguard your personal documents from anyone who doesn't have permission to open them.