SpiderOak provides an easy, secure and consolidated free online backup, sync, sharing, access & storage solution for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora)
1. Access all your data in one de-duplicated location
2. Configurable multi-platform synchronization
3. Preserve all historical versions & deleted files
4. Share folders instantly in web ShareRooms w / RSS
5. Retrieve files from any internet-connected device
6. Comprehensive 'zero-knowledge' data encryption
7. 2 GBs Free / $10 per 100 GBs / Unlimited devices

Whether you need to access a document you have stored on a remote server, synchronize data between a Mac, Windows or Linux device, share important business documents with your clients, or just rest easy knowing all of your data is safely, securely, and automatically backed up - SpiderOak's free online backup, online sync and online sharing solution can handle all your needs!

SpiderOak offers a different approach to online backup by combining a suite of services into one consolidated tool - free online backup, synchronization, sharing, remote access, and storage. This difference is further measured in our zero-knowledge privacy policy - the first one ever employed in this setting. Our flexible design allows you to handle data from any operating system (Mac, Windows and Linux) or location (external drives, network volumes, USB keys, etc...) using just one centralized account.

Limitations:
* Space limited to 2 Gigabytes

The license of this software is Free Trial Software, you can free download and get a free trial.