Overview
Files & backups, explained plainly
A plain record of how file storage, syncing, and backups actually work — no product to sell, nothing to recommend.
Quick concepts
start hereworth knowinggoes deeper
File sync
A tool that keeps the same files updated across more than one device automatically
Version history
Older saved states of a file kept alongside the current one
3-2-1 rule
Three copies of a file, on two different kinds of storage, with one kept elsewhere
Local backup
A copy kept on a drive or device you physically control
Data portability
The ability to take your files and data out of a service in a usable format
File format longevity
How likely a file format is to still be openable many years from now
Recently added
How cloud file sync actually works
File sync feels like magic until a conflict or a missing file forces you to think about what is actually happe…
Local storage or cloud sync: how to actually decide
The choice between keeping files on a device and syncing them elsewhere is usually framed as a technology ques…
What version history actually saves you from
Version history gets mentioned as a backup feature, but it solves a narrower and more specific problem than pe…
What happens to your files when a service shuts down
Online services close, get replaced, or quietly stop maintaining old features far more often than people plan …
The 3-2-1 backup rule, explained without the jargon
The 3-2-1 rule gets repeated constantly in backup advice, often without anyone explaining why those specific n…
Moving your files to a new device without losing anything
Switching to a new phone, laptop, or computer is one of the most common moments where files quietly go missing…