[blergh123]

I didn't really think about it before, but I now feel very uncomfortable that Dropbox has copies of my unencrypted files. I would feel much better if the files were encrypted before being synched. Is there a service that does this?

I don't want Dropbox to be able to see the contents of my file system at their end.

[pmontra]

If you don't trust Dropbox you should encrypt your files before copying them to the Dropbox folder because you can't trust the client too. You should encrypt them with a key the client cannot read from fs. Basically you're going to use it as a backup service because you won't be able to work on files in the DB folder. Maybe one of those file systems that work in user space and store only encrypted data will do. Check this http://www.howtogeek.com/121737/how-to-encrypt-cloud-storage...

[aabaker99]

I'm not sure what your OS is but I do something documented at [0] to encrypt my Dropbox files. The encfs approach also makes it easy to decrypt all of them for use. I'd even say with a little more fine tuning (running encfs on startup, for example), the process could be pretty automated. There's even an Android app that you can use (though it's a little more tedious) to decrypt the files on mobile.

[0] https://wiki.archlinux.org/index.php/Dropbox#Setup_EncFS_wit...