The right to data portability (Article 20 of the GDPR)
In some circumstances, you may be entitled to obtain your personal data from a data controller in a format that makes it easier to reuse your information in another context, and to transmit this data to another data controller of your choosing without hindrance. This is referred to as the right to data portability.
When does the right to data portability arise?
This right only applies where processing of personal data (supplied by the data subject) is carried out by automated means, and where you have either consented to processing, or where processing is conducted on the basis of a contract between you and the data controller.
This right only applies to the extent that it does not affect the rights and freedoms of others.
When this right applies, how must data controllers provide and transmit data?
Where this right applies, data controllers must provide and transmit personal data in structured, commonly used and machine readable form. Data is structured and machine readable if it can be easily processed by a computer.
Under this right, you can ask a data controller to transmit your data to another data controller, if such transmission is technically feasible.