PrivacyTools.io
Replace today: WeTransfer Dropbox

Anonymous File Sharing & Encrypted Sync in 2026

Private alternatives to WeTransfer, Dropbox, vetted against our public criteria.

Sometimes you need to move a file between your own devices, and sometimes you need to hand one to another person, and the easy defaults route it through a company that keeps a copy. These tools sync and share with encryption, some peer-to-peer with no server at all, and one sends a file anonymously over Tor. Pick the one that fits the job.

Sync versus share

Two different needs live here. Continuous sync keeps a folder mirrored across your own devices, and Syncthing does this peer-to-peer with no cloud in the middle. One-off sharing sends a file to someone else, ideally end-to-end encrypted and set to expire, and OnionShare can even send it anonymously over Tor. Match the tool to whether you are syncing your devices or handing something to a person.

What to look for

End-to-end encryption so nothing readable sits on a third-party server, peer-to-peer transfer where possible so there is no middleman at all, open-source code, and expiring links for one-off shares. Avoid services that keep an indefinite, readable copy of whatever you move.

A note on trust

Peer-to-peer tools are the strongest option because your files never touch someone else’s server; the trade-off is that both devices need to be online to sync. Encrypted transfer services are more convenient for sending to other people. Reach for the right one rather than defaulting to whatever is already installed.

Frequently asked

Is this like Dropbox?
Some of it. Peer-to-peer sync keeps a folder mirrored across your own devices like Dropbox does, but without a company holding a copy in the middle. Other tools here are for sending a one-off file to someone else.
Does my file sit on a server somewhere?
With peer-to-peer tools like Syncthing, no. The file moves directly between your devices and never lands on a third-party server. Encrypted transfer services hold it only briefly and only as data they cannot read.
Can I send something anonymously?
Yes. OnionShare sends a file directly to someone over the Tor network, with no account and no server keeping a copy, which is about as private as file sharing gets.