CloudSync backs up your documents, photos and notes securely. Files are encrypted on your device before upload ā we never see your data.
Learn how it worksAES-256 client-side encryption. Keys never leave your devices, so even we cannot read your files.
Only changed parts of files are uploaded. Saves bandwidth and makes backups near-instant.
Windows, macOS, Linux, iOS and Android. One account keeps every device in sync.
Since 2023 CloudSync has helped more than 40,000 users keep their personal archives safe. We are a small independent team based in Tallinn, Estonia, and we fund the service with paid plans ā not with ads or data selling.
Our infrastructure runs in EU data centres (Hetzner, Germany & Finland), all traffic is TLS 1.3, and our sync protocol is open for independent audit.
Create an account, install the desktop or mobile client, and pick the folders you want to protect. The first backup runs automatically in the background. You can restore any previous version of a file from the version history panel.