Filechain & Filehub
Upload NFT images and metadata, add redundancy for content you care about, or store anything else on-chain.
Use case · Data
The blockchain built for data.
Chromia changes the structure of blockchain state. You get relational tables at consensus instead of key-value mappings, with native indexing, SQL-like queries, and file storage that lives on-chain.
Decentralized data as a service
Why this matters.
Decentralized relational DB
Most Web3 projects still lean on a centralized database for their relational data. Chromia removes that dependency.
Application data layers
Public records, order books, AI memory, vector embeddings. Anything that wants structured queries fits here.
How it works
A relational model, not key-value.
Traditional blockchains store key-value mappings. Chromia stores relational tables. That difference is what makes structured queries fast and complex applications practical.
- →Query on-chain data natively. Filter, sort, project, and join.
- →Run thousands of read and write operations inside a single transaction.
- →Block data is indexed automatically, so you do not need a third-party indexer.
Case study
VfB Stuttgart.
A digital collectibles marketplace, live on Chromia.
VfB Stuttgart launched its marketplace in November 2023. It uses Filechain and Filehub to store images and metadata directly on Chromia. The project is a proof of concept for how NFT collections on any chain can drop their reliance on centralized infrastructure.
Community
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270k users around the world are already part of the journey.