Personal data store

Last updated on January 11, 2026

General term for data that is owned by the user, and attached to different apps.

This is in contrast to each app having and storing its own files, often on a hosted server not under control of the user.

ATProtocol also uses the term PDS / Personal Data Server for the software instance that stores your account data.

Atprotocol

ATProto was developed by [[Bluesky]] as an open social protocol. The AT Protocol is a networking technology created to power...

Personal Data Server is abbreviated as PDS. The more generic [[Personal Data Store]] is a non-protocol specific label for the...