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Carbonite vs Tarsnap: catalog facts
Carbonite	Tarsnap
Paid Annual plans for one computer, with discounted first-year prices and a 30-day money-back…	Paid Prepaid usage billing at $0.25 per GB-month stored and $0.25 per GB transferred, with no…
Windows, macOS	macOS, Linux, Command line
Unlimited cloud storage on personal plans Runs automatically after setup	Client-side encryption with keys only you hold Deduplication uploads only changed data
Personal plans cover only one computer Video backup is automatic only on higher tiers	Command line only, with no graphical interface No native Windows client, only Cygwin or WSL
Downloadable app, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.