Sia is the world’s safest cloud storage, by design.
Discover how our decentralized design puts you in control of your data, by default.
Decentralized Design
Others claim it — but we built it. Sia network has no central access point, no gatekeepers, and no expensive hardware requirements.
Supreme Privacy
Sia stores—but never sees—your data. It splits each file into tiny encrypted shards, jumbles them up, and then distributes them across our decentralized network.
Impenetrable Security
We render bad actors impossible, or cosmically improbable, with insurmountable security layers and knowledge asymmetries.
Continuous Performance
Our design enables distributed workloads and parallel retrieval — making it faster, more resilient, and outage-proof.
Non-profit Model
An open source project sustained by community donations, Sia is free from profit motives and works for the public good.Wait?! There’s a problem with traditional storage?
Learn moreBuilt on the Safest Cloud Storage Network.
Sia is a thriving, open source ecosystem powered by storage enthusiasts, data ownership champions, and commercial platforms.
HostScore
HostScore is a host scoring and benchmarking platform for the Sia data storage network.
S5
Content-addressed storage, but fast. Works with Sia and any S3-compatible storage provider.
Vup
Private and decentralized open-source cloud storage app with encrypted file sharing and media streaming support.
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Projects built on Sia$3.2M
allocated to grant funding in 2025foundation
Sia v2: A New Brand for a New Era of Decentralized Storage
privacy
From Fragile to Fail-proof: Why the World Needs Sia Cloud Storage
foundation
Sia v2: A Fork in the Road
foundation
From Genesis to Adoption: The Past, Present, and Future of Sia
privacy
[Censored]: No Free Speech Without Data Privacy and Ownership
recap
The State of Sia, April 2025
privacy
From Disaster to Design — Engineering the Cloud for Continuous Performance
privacy
Data Breaches: The New Normal We’re Not Ready for
privacy
Impenetrable by Design: Real Security Starts Before the First Byte Is Stored
recap
