Kopia
Kopia backs up data across Windows, macOS, and Linux with incremental backups, client-side encryption, compression, and deduplication.
About Kopia
Kopia is an open-source backup and restore tool for Windows, macOS, and Linux with command-line and graphical interfaces. It creates encrypted snapshots of selected files and directories and stores them locally, on network-attached storage, on a Kopia repository server, or on remote and cloud storage chosen by the user.
It uses incremental backups with client-side end-to-end encryption, compression, deduplication, and error correction. It does not create whole-machine images, and users must provision and pay for their own storage separately.
Key features
- Incremental snapshots of selected files and directories
- Client-side end-to-end encryption with user control
- Compression, deduplication, and error correction for snapshots
- Command-line and graphical interfaces included
- Stores snapshots on S3-compatible, Azure, B2, Google Cloud
- Supports WebDAV, SFTP, local disk, NAS, repository server
Best for: Users on Windows, macOS, or Linux who want to back up selected files to storage they manage themselves.
Good for
- Available for Windows, macOS, and Linux with CLI and GUI options
- Lets users choose from many local, network, and cloud storage destinations
- Licensed under Apache License 2.0 with source code publicly available
Watch out for
- Does not create whole-machine images, only selected files and directories
- Requires users to provision and pay for their own storage separately
- Rclone-based destinations are experimental and some may not work
Kopia at a glance
- Website
- github.com/kopia/kopia
- Category
- Software & Utilities › Backup & Recovery
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Windows
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Backup & Recovery
Kopia alternatives
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Kopia FAQ
Does Kopia back up my whole computer?
No. It backs up and restores files and directories you select; it does not image the whole machine.
Where can I store backups?
Locally, on network-attached storage, on a Kopia repository server, or on supported S3-compatible, Azure Blob, Backblaze B2, Google Cloud, WebDAV, SFTP, and some Rclone destinations. You must set up and pay for the storage yourself.
Can I use Dropbox, OneDrive, or Google Drive?
Those have been tested through Rclone, which you must download and set up separately. Rclone support is experimental and not all Rclone destinations work.
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