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File Sharing and Sync

Discover how to privately share your files between your devices, with your friends and family, or anonymously online.

File Sharing

Send

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Send logo

Send is a fork of Mozilla’s discontinued Firefox Send service which allows you to send files to others with a link. Files are encrypted on your device so that they cannot be read by the server, and they can be optionally password-protected as well. The maintainer of Send hosts a public instance. You can use other public instances, or you can host Send yourself.

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Send can be used via its web interface or via the ffsend CLI. If you are familiar with the command-line and send files frequently, we recommend using the CLI client to avoid JavaScript-based encryption. You can specify the --host flag to use a specific server:

ffsend upload --host https://send.vis.ee/ FILE

OnionShare

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OnionShare logo

OnionShare is an open-source tool that lets you securely and anonymously share a file of any size. It works by starting a web server accessible as a Tor onion service, with an unguessable URL that you can share with the recipients to download or send files.

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FreedomBox

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FreedomBox is an operating system designed to be run on a single-board computer (SBC). The purpose is to make it easy to set up server applications that you might want to self-host.

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File Sync

Syncthing

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Syncthing is an open-source peer-to-peer continuous file synchronization utility. It is used to synchronize files between two or more devices over the local network or the internet. Syncthing does not use a centralized server; it uses the Block Exchange Protocol to transfer data between devices. All data is encrypted using TLS.

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