Tahoe Least-Authority File Store is a free and open, secure, decentralized, fault-tolerant, distributed data store and distributed file system. It can be used as an online backup system, or to serve as a file or Web host similar to Freenet, front-end used to insert and access files in the Tahoe system.
Tahoe-LAFS is the first Free Software/Open Source storage technology to offer provider-independent security. Provider-independent security means that the integrity and confidentiality of your files is guaranteed by mathematics computed on the client side, and is independent of the servers, which may be owned and operated by someone else. To learn more, read our one-page explanation.
Tahoe-LAFS provides reliable, fault-tolerant storage. Even if you do not need its security properties, you might want to use Tahoe-LAFS for extremely reliable storage.