Data portability is the ability for users to obtain, move and reuse their personal or application data across services in a structured, machine-readable format without lock-in. It is both a legal right under regimes such as GDPR and a technical property enabled by open formats and interoperable storage. In decentralised-web designs it lets individuals carry data between providers, shifting control from platforms to users.
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- As a legal right it obliges providers to return personal data in a structured, commonly used format on request. As a technical capability, decentralised storage such as personal data pods lets users grant and revoke application access without surrendering custody of the data.