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description=Add encrypted, user-owned storage to browser, mobile, desktop, and server apps with the Sia Storage SDK. No storage infrastructure to operate.;

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sia developer portal build private user owned storage into any app sia developer portal search k sia storage sdk build private user owned storage into any app sia is a decentralized storage network the sdk encrypts data on the user s device spreads it across independent storage providers worldwide and gets it back on demand with no storage infrastructure for you to operate start building how it works store rs rust go python dart js with a connected sdk instance let reader std io cursor new b hello sia let obj object default let obj sdk upload obj reader uploadoptions default await sdk pin_object obj await println object id obj id 01 install the sdk 02 connect a storage account 03 store an object 04 download it back how it works your app sends encrypted data directly to storage providers and coordinates through an indexer which stores only encrypted records users approve your app once then own their data independently of you your app the sdk encrypts and erasure codes data locally keys stay on the user s device indexer tracks encrypted object records and keeps data healthy hosted by sia storage or self hosted it never sees plaintext storage providers independent nodes worldwide store encrypted shards never filenames metadata or readable data the trust deployment model covers what the indexer can see who pays for storage and what happens if it goes offline what can you build photo backup back up camera rolls to storage the user owns desktop sync keep folders in sync across a user s devices encrypted documents store records nobody but the user can read media archives archive large video and audio libraries durably user controlled app data give users data that outlives your service file sharing share objects with public or time limited links why sia private by default data and metadata are encrypted on the user s device before they touch the network the coordination service and storage providers never see plaintext there is nothing for a provider to read scan or leak no infrastructure to run the sdk talks directly to the network from your app there are no buckets to provision no servers to operate and no per app backend required just to store files durable by design every object is erasure coded into 30 shards spread across independent storage providers worldwide any 10 shards reconstruct the data so it survives even if 20 of the 30 providers go offline no lock in sia is an open network your app can use the hosted indexer a third party one or your own and users hold the keys to their data either way pick your sdk first party sdks for rust go python dart and javascript the javascript sdk runs in node and the browser and the dart sdk supports flutter on mobile and desktop rust reference cargo add sia_storage go reference go get go sia tech siastorage latest python reference pip install sia storage dart reference dart pub add sia_storage javascript reference npm install siafoundation sia storage start free sia storage is a hosted indexer with a 50gb free tier and no setup and because the sdk works with any sia indexer including self hosted ones you re never locked in follow the quickstart explore the concepts sia how it works about privacy policy terms of service 2026 the sia foundation