Guide
Data portability: why it decides how painful switching really is
Data portability sounds like a technical footnote, but it is the single factor that most determines whether switching tools or services later turns out to be simple or painful.
Portability means a usable export, not just any export
A service can technically let you download your data while still making it nearly useless elsewhere, by exporting it in a format nothing else can open. Real portability means the export is something another tool could actually use.
It matters most for the things you did not expect to need
People tend to think about exporting obvious files like documents and photos, while forgetting things like organizational structure, tags, or notes attached to items — details that are often exactly what gets lost.
Checking portability before you commit, not after
It is far easier to check whether a service offers a reasonable export option before building years of material inside it than to discover the answer only once you already want to leave.
Questions people ask
Does having an export option mean full portability?
Not always — it depends on whether the exported format preserves the structure and detail you would actually need elsewhere.
Is data portability only relevant when switching services?
It is also relevant if a service simply shuts down, since the same export option is often the only path to keeping your own data at all.