# Does Emolysis work offline?

> Partly: golden tests on DuckDB with local files work offline, while writing code, deploying and sharing a dashboard all need a network connection.

Partly. Running templates and golden tests on [DuckDB](https://emolysis.com/platforms/duckdb) with files already on your machine works without a network connection. Writing code needs the model provider, so it needs a connection. Connecting, sampling and deploying need your platform, and publishing a dashboard needs Emolysis's services.

Signing in the first time needs a connection too, because every use of Emolysis needs an Emolysis account. After that, the app checks your plan when it is online, and your plan stays active through short periods offline.

In short: testing on local files works on a plane; writing code, deploying and sharing do not. See [what leaves your machine](https://emolysis.com/security) and the [data handling docs](https://emolysis.com/docs/data-handling).

---

Page: https://emolysis.com/faq/will-emolysis-work-offline. Emolysis is a product of Bandpey GmbH, Munich, Germany. It is in private development, and nothing is released yet.