Privacy Ratings

Open-source file sync and backup

11 file sync and backup whose code is public under an OSI-approved license, rated for privacy with evidence. Picks first, then by score.

  1. bewCloud Grade B

    Self-hosted personal cloud written in TypeScript and Deno, with files, notes, photos, contacts and calendar. A lighter alternative to Nextcloud and ownCloud.

    AGPL-3.0. Source code

  2. BorgBackup Grade B

    Deduplicating command-line backup program with compression and authenticated encryption. Backs up to local disks or remote servers over SSH.

    BSD-3-Clause. Source code

  3. Déjà Dup Grade B

    Backup app for the GNOME desktop that schedules encrypted, incremental backups to local drives, network servers or cloud storage, using restic or duplicity.

    GPL-3.0. Source code

  4. Pika Backup Grade B

    Backup app for the GNOME desktop built on BorgBackup, with scheduled, deduplicated and encrypted backups to local drives or remote repositories.

    GPL-3.0. Source code

  5. restic Grade B

    Command-line backup program with deduplication and end-to-end encryption. Backs up to local disks, SFTP, REST servers and cloud storage such as S3, Backblaze B2 and Azure.

    BSD-2-Clause. Source code

  6. Syncthing Grade B

    Open source, peer-to-peer continuous file synchronization between two or more devices. Data is encrypted in transit and never stored on a central server.

    MPL-2.0. Source code

  7. Vorta Grade B

    Desktop front end for BorgBackup that schedules backups, browses archives and restores files. Works with local drives, SSH servers and hosted Borg repositories.

    GPL-3.0. Source code

  8. Nextcloud Grade C

    Self-hosted collaboration platform for file sync and sharing, with desktop and mobile clients plus apps for calendar, contacts, office documents and chat. Supports optional server-side and end-to-end encryption.

    AGPL-3.0. Source code

  9. Kopia Grade D

    Backup tool with a command-line interface and a desktop app, offering deduplication, compression and end-to-end encryption. Stores snapshots on local disks, SFTP, WebDAV and cloud storage.

    Apache-2.0. Source code

  10. ownCloud Infinite Scale Grade D

    Self-hosted file sync and sharing platform from ownCloud, written in Go without a database. Offers web access, desktop and mobile sync clients, and spaces for team folders.

    The server is Apache-2.0 and the desktop and mobile clients are GPL. Source code

  11. rclone Grade D

    Command-line program to sync, copy and mount files on more than 70 cloud storage services, with optional client-side encryption through its crypt backend.

    MIT. Source code

Compare all 19 file sync and backup, open source or not.