Finitio - A Data Language

August 6, 2026 · View on GitHub

Finitio is a data language. For now, it is limited to a data definition language (DDL). Think "JSON/XML schema", but a slightly different way, that puts the emphasis on precision. Finitio comes with a dedicated type system for defining data and a theory, called information contracts, for interoperability with programming and data exchange languages.

Implementation

  • Finitio-rb - Finitio in Ruby (validation & coercing, 0.x.y release)
  • Finitio-js - Finitio in Javascript (validation & coercing, about to release)

Web site

www.finitio.io is built from website/, a statically generated Nuxt application. See website/README.md to run it locally.

The Dockerfile at the root builds that site and serves the result with nginx on port 4000; make image / make push-image / make redeploy drive the pipeline.

Contributing

Please join the google group for questions and discussions about Finitio.

We also welcome pull-requests with cucumber features demonstrating use cases and suggesting new features! Especially welcome if an implementation already exists in some binding such as Finitio-rb or Finitio-js.

License

© 2014 — The University of Louvain

The specification and documentation of Finitio is distributed under a under a Creative Commons Attribution-ShareAlike 4.0 International License