The world’s safest cloud storage, by design.
Build on an open network of independent storage providers. Encrypt data in your application, distribute it globally, and keep control of your keys.
Your file
Encrypted with your key
Encrypt in your application
The SDK encrypts the file before any byte leaves your application. The key never leaves it.
Stream an encrypted video straight from the network
Press play and your browser fetches the shards straight from storage providers, rebuilds each chunk from any 10 of its 30 shards, and decrypts it on your device.
30 shards. Any 10 rebuild the chunk.
- Providers holding it
- 122
- Countries
- 32
Shard 1 is stored with a provider in Portugal at SIA.opik.net:9984.
2.04 GB · 49 chunks · 1,470 shards
Video: NASA. Map: Natural Earth. Sia Storage shares the file. The video data comes straight from providers to your browser.
Open the collection in Sia Share(opens in a new tab)Build on the network
The SDK encrypts data in your application and transfers it directly to storage providers. An indexer keeps track of objects and storage contracts but never relays your data.
Read the quickstart(opens in a new tab)import { PinnedObject } from '@siafoundation/sia-storage'
const source = new Blob(['Hello, Sia!']).stream()const object = await sdk.upload(new PinnedObject(), source)await sdk.pinObject(object)Or use one of our apps
Built on the same SDK, for personal storage and S3‑compatible software.
How the network keeps your data
Independent providers
Applications store data with many independent providers instead of relying on a single cloud operator.
Encrypted before upload
The SDK encrypts data inside your application. Providers only ever see encrypted shards, and the keys stay with you.
Verifiable storage
Storage contracts and cryptographic proofs let the network check that providers still hold the data they agreed to keep.
Built for redundancy
With the default 10-of-30 scheme, any 10 shards rebuild a chunk. Transfers run in parallel, and repair keeps data available when providers go offline.
