Kopia: encrypted backups and a test restore

What is Kopia used for?

Kopia saves snapshots of selected files and folders in an encrypted repository. KopiaUI provides a desktop interface; the command-line version supports scripting. Both use the same underlying program. You choose local, network or supported cloud storage and arrange access to it yourself.

A repository password protects the backup. Keep it in a separate recoverable location: Kopia cannot recover the files if you lose that password. Cloud capacity and download charges are separate from the open-source software. A repository on the same disk as the originals will not survive loss of that disk.

Choose storage and prove that restoration works

Start with a small folder containing disposable documents. Create a repository, select the source folder and create a snapshot. Record its date and identifier. Retention policies determine which snapshots remain available; review them before adding important data.

Restore the sample into a new empty directory, leaving the original folder untouched. Open restored documents and compare their contents. Repeat the exercise with an older snapshot after changing the sample. This checks whether you can retrieve the version you actually need.

Download Kopia from the official website

On the project’s download page, choose the build for your operating system.

Check the website address. Follow the developer’s instructions for verifying the file’s signature or checksum.

Getting started with Kopia

1. 1Download KopiaUI for your operating system from the official installation page.
2. 2Create or connect to a repository and retain its password separately.
3. 3Create a snapshot of a disposable test folder and record its identifier.
4. 4Restore that snapshot into a separate empty folder and check the files.
5. 5Set the schedule and retention only after the test succeeds; repeat recovery tests after changes.

Kopia interface and illustrations

Kopia logo

Official Kopia logo; not an application screenshot

KopiaOfficial Kopia logo; not an application screenshot

1 / 1

Enlarge

1 of 1. Kopia: Official Kopia logo; not an application screenshot

1

KopiaOfficial Kopia logo; not an application screenshot · 1 / 1

Original in a new tab

Limitations and data protection in Kopia

Kopia backs up files and directories rather than producing a bootable image of the whole computer. Open databases need application-specific preparation. Encryption does not stop an attacker with sufficient storage permissions from deleting your repository.

Default snapshot verification checks repository structures and the presence of required data, but does not read and decrypt every file. Full file verification consumes storage traffic; it still does not replace opening restored files in their applications. Do not expose the management interface to the public internet.

Alternatives for related tasks

Choose KopiaUI when you want a graphical backup workflow. Restic is another option for command-line work. Syncthing synchronizes folders; configure a separate recovery strategy because deletions can spread between devices.

Documentation and images