License

Hydra ETL is open source under the GNU Affero General Public License v3.0 or later (AGPL-3.0-or-later).

You can, for free

Use Hydra ETL for any purpose, including inside a company and for commercial work.
Run your own pipelines with it, internally or for clients.
Modify it and redistribute it.

Using Hydra ETL to move your data does not place your data, your YAML pipelines or your other applications under the AGPL.

The one obligation

If you modify Hydra ETL itself and make it available to others — including over a network, for example as a hosted service — you must publish your modified source code under the same license.

Commercial license

If that obligation does not fit your case — typically, you embed a modified Hydra ETL in a proprietary product, or offer it as a service without publishing your changes — a commercial license is available.

Contact: admin@hydraetl.com — reply within two business days.

Questions we are often asked

We run Hydra ETL on our own servers to load our own warehouse. Nothing to publish. The AGPL applies to Hydra ETL's source code, not to the data it moves.
We wrote our own connector for internal use only. Nothing to publish, as long as it is not distributed or exposed to third parties over a network.
We ship a product that bundles a modified Hydra ETL. Either publish your changes under the AGPL, or take a commercial license.

This page summarises the license in plain language; the LICENSE file is what applies. It is not legal advice.