Sia Logo
hardfork-icon.png

The v2 hardfork activates today! Make sure your software is up to date. Yes, this means YOU!

See what powers the Sia network.

Sia makes some bold claims — because no other cloud storage has our design. See for yourself.

how-it-works.png

How Your File Gets Stored

Sia is a pure decentralized peer-to-peer network. No central access point, no gatekeepers, and no insanely expensive hardware requirements. Why does decentralization matter? It’s the key to how Sia keeps a file safe and sound.

Ready to roll up your sleeves?

Get a step-by-step overview of the onboarding process or jump straight into the docs.

How Pricing Works

Competitive Open Market

Sia’s decentralized network works as an open global market.

Sia Finds the Best Deals

Sia’s software finds the best deals based on your preferences.

Providers Set Their Prices

Each provider determines the price they’d like to charge.

You Save, They Earn

You save a ton. Storage providers earn. Everyone wins.

$3.29/TB/month

storage at 3X redundancy

$0.07/TB

upload

$3.39/TB

download

Sia Tech Stack

Instead of forcing users to entrust their data to a centralized cloud storage network, we created a new decentralized one that can store — but not see — your data.

At its foundation is a blockchain layer that supports the software above it. This software uses smart contracts to automatically distribute fragmented, encrypted data across a global network of independent storage providers. Data is never stored on the blockchain. Users pay providers for storage using Siacoin.

Non-Profit Model

Sia is an open-source project supported by the nonprofit Sia Foundation and sustained by community donations.

Open-source project
Only you have access to your data
Funded by community donations
Provided as a public service
No proprietary code
No selling data to third parties
No investors or advertisers
No profit motives

Join Discord

For community and support

Contribute to GitHub

Check out what people are building

Get the Newsletter

For updates, milestones and more