Frictionless Framework is an open-source Python framework (MIT licence) for describing, extracting, validating and transforming tabular data, built on the Frictionless Standards. Developers and data teams use it in scripts and data pipelines. It is installed as a library on the user's own machines or servers, so it runs on the organisation's own infrastructure.
The project is maintained within Frictionless Data, a project of the Open Knowledge Foundation, a not-for-profit organisation incorporated in England and Wales, outside the EU. The library has no vendor-operated cloud service, so data stays wherever the organisation runs the code. For a European organisation this is a self-hosted option with no external provider in the data flow, and the MIT licence allows the code to be inspected and modified.