Unlock cloud storage that can't spy on you.

Encrypted, decentralized storage where no one holds the keys but you. Start with 200GB free.

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Storage without compromise

Files are encrypted on your device before upload. Nobody can read them. Not even us.

Built-in redundancy across independent hosts worldwide. No single point of control or failure.

No advertisers mining your data. No trackers watching your activity. No AI training on your files.

Open source at its core. A growing ecosystem of apps and tools built by developers worldwide.

Parallel downloads from multiple hosts mean faster speeds and zero downtime. Your files are always there when you need them.

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Plan cards go here

Whether you're accessing files on the go or integrating Sia into your existing tools, we've got you covered.

Access your files from any device. Upload photos, download documents, and manage your storage wherever you are.

Available for iOS, Android, and desktop

S3-compatible API that works with the tools you already use. Rclone, Cyberduck, or any S3-compatible client—just point it at Sia.

Drop-in replacement for Amazon S3

Sia's open platform welcomes developers. Build your own apps, integrations, or tools.