Reliable long-term cloud storage.
Open source backend. $0.02/GB.

  • Built by SpiderOak on the same proven backend storage network which powers hundreds of thousands of backups
  • Focus on high throughput and reliability, while sacrificing low latency for cost effectiveness
  • REST API similar to Amazon S3
  • 100% open source server software and client libraries. Open spec hardware.

We are currently in private beta. Sign up and we'll send you an invitation as soon as we're ready!

Striped storage architecture

Nimbus.IO uses parity striping to spread data across many servers redundantly — providing bulk storage with equal reliability and lower overhead than replication based storage systems.

View the parity architecture »


The RESTful JSON API is similar to S3 or Rackspace Cloud Files and the client libraries are drop-in alternatives to the most popular libraries of competing cloud storage platforms.

Read the documentation »

Open source

The server and client components are all free and open source software. The server software is made available under the AGPL license. Client libraries are available under LGPL.

Contribute »


Transfer in is always free. Transfer out is $0.06/GB.

PUT and LISTMATCH requests are $0.01 per 1000. Other requests are $0.01 per 10,000 or free.

$0.02/GB of storage.

Review the API methods »