Kopia
Kopia is open-source backup software for Windows, Mac, and Linux, with encrypted, compressed, and deduplicated backups using chosen cloud storage.
About Kopia
Kopia is open-source backup software for Windows, macOS, and Linux. It creates encrypted, compressed, and deduplicated backups using cloud storage selected by the user. It is intended for use on small laptops and large servers.
The tool provides both a desktop app with a graphical interface and a command-line interface. In the desktop app, you can create snapshots, define backup policies, and restore files. The command-line version can be used with storage options including Google Cloud Storage, with settings for encryption and compression.
Kopia suits users who want to manage their own backups on laptops or servers and are comfortable choosing and configuring storage. The website provides downloads, recorded demos of the graphical and command-line interfaces, documentation, and a user forum for questions and discussion about features and issues.
Key features
- Encrypted, compressed and deduplicated backups
- Works with user-chosen cloud storage
- Desktop app for Windows, macOS and Linux
- Command-line interface on desktop systems
- Create snapshots, set policies and restore files
Best for: Windows, Mac, and Linux users who want open-source software to manage their own encrypted backups.
Good for
- Available for Windows, macOS and Linux
- Offers both GUI and command-line use
- Encryption, compression and deduplication included
- User forum for questions and discussion
Watch out for
- Requires choosing and configuring your own storage
Kopia at a glance
- Website
- kopia.io
- Category
- Software & Utilities › Backup & Recovery
- Type
- Online tool
- Pricing
- Free
- Platforms
- Linux, macOS, Windows
- Open source
- Yes
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Backup & Recovery
Kopia alternatives
Tools and sites you could use instead, ranked by how closely they match.
Kopia backs up data across Windows, macOS, and Linux with incremental backups, client-side encryption, compression, and deduplication.
Open source
7 alternatives
restic backs up data on Linux, macOS, Windows, FreeBSD, and OpenBSD; its project describes it as fast, efficient, and secure.
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Duplicati provides encrypted backups to cloud storage and local hardware, with support listed for S3, WebDAV, and SFTP.
Borg UI adds a web interface for creating, scheduling, and restoring Borg Backup jobs, replacing terminal commands with a graphical workflow.
Open source
7 alternatives
Rescuezilla supports disk cloning and imaging and works with Clonezilla; its repository calls it a graphical interface for Clonezilla.
Open source
9 alternatives
Apple’s macOS backup feature for automatic file history on supported external or network storage.
Free
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Kopia FAQ
What is Kopia used for?
Kopia is open-source backup software that creates encrypted, compressed, and deduplicated backups. You can create snapshots, define policies, and restore files.
Which operating systems does Kopia support?
Kopia supports Windows, macOS, and Linux. It offers both a desktop app and a command-line interface.
Where does Kopia store backups?
Kopia stores backups in cloud storage you choose. Google Cloud Storage is one example shown on the site.
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