Alternatives to Kopia
Cross-platform dedup backup with GUI
Kopia ranks #2 of 12 in Backup software, with an Alt Score of 100. It is licensed under Apache-2.0, free and available on Windows, macOS and Linux. 10 of 10 checklist rows are verified against a public source.
Individuals and sysadmins who want a fast, secure backup tool for their own laptops, workstations, or servers rather than a managed consumer backup service; comfortable using a CLI, a desktop GUI, or both.
Client-side encrypted, deduplicated, and compressed snapshots of files and directories, so repeated backups only upload changed data and storage costs stay low. Snapshots can be scheduled, retained with configurable policies, and browsed or mounted like a filesystem for restores. It stores to a wide range of backends, including local/network disk, SFTP, WebDAV, S3-compatible storage, Backblaze B2, Azure Blob, and Google Cloud Storage. It's free, open source (Apache 2.0), and available for Windows, macOS, and Linux.
You point Kopia at a repository (the storage backend) and create snapshots of chosen directories via the CLI or the KopiaUI desktop app; content-addressable storage deduplicates and compresses data before encrypting it. Snapshots run on a schedule or on demand per defined policies, and you restore by browsing snapshot history and copying back or mounting a snapshot as a virtual filesystem.
Where Kopia stands out
Verified capabilities most alternatives don't have.
Why people leave Kopia
Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.
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Ranked alternatives
Ordered by Alt Score. Click any score to see the breakdown.
Feature comparison
Rows come from the Backup software checklist (14 rows). Human-verified cells only. ? means the value has not been verified.
| Backup software checklist | Kopia | Duplicati | Duplicacy | Restic | Arq | Vorta |
|---|---|---|---|---|---|---|
| Pricing model | ||||||
| Starts at | ||||||
| License | ||||||
| Platforms | ||||||
| Incremental backups | ||||||
| E2E encryption | ||||||
| Deduplication | ||||||
| Cloud targets supported | ||||||
| Local / NAS targets | ||||||
| Scheduling | ||||||
| Versioning & retention policies | ||||||
| Restore granularity | ||||||
| Open source | ||||||
| Compression |
Every fact and feature listed for Kopia is verified against its own pages. Each alternative is sourced on its own page.
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License Apache-2.0 verified 2026-07-11
Apache License, Version 2.0, January 2004
https://github.com/kopia/kopia/blob/master/LICENSE -
Platforms Windows, macOS, Linux verified 2026-07-11
Cross-platform backup tool for Windows, macOS & Linux
https://github.com/kopia/kopia -
Pricing model Free verified 2026-07-11
fast and secure open-source backup/restore tool that allows you to create encrypted snapshots of your data
https://github.com/kopia/kopia -
Status active verified 2026-07-11
Kopia v0.23.1. is a bugfix release which fixes a rare race condition which might lead to a data loss - an upgrade is recommended
https://github.com/kopia/kopia/releases/tag/v0.23.1 -
Incremental backups Yes verified 2026-07-11
Each snapshot is always incremental. This means that all data is uploaded once to the repository based on file content, and a file is only re-uploaded if the file is modified.
https://kopia.io/docs/features/ -
E2E encryption Yes verified 2026-07-11
Kopia uses end-to-end encryption, with user-controlled encryption keys, to encrypt all data before it leaves your machine
https://kopia.io/docs/features/ -
Deduplication Yes verified 2026-07-11
Multiple copies of the same file will be stored once. This is known as deduplication and saves you a lot of storage space
https://kopia.io/docs/features/ -
Cloud targets supported Yes verified 2026-07-11
Amazon S3 and any cloud storage that is compatible with S3
https://kopia.io/docs/features/ -
Local / NAS targets Yes verified 2026-07-11
Any remote server or cloud storage that supports SFTP
https://kopia.io/docs/features/ -
Scheduling Yes verified 2026-07-11
how frequently/when Kopia should automatically create snapshots of your data
https://kopia.io/docs/features/ -
Versioning & retention policies Yes verified 2026-07-11
how long to retain a snapshot before expiring it and removing it from the repository
https://kopia.io/docs/features/ -
Restore granularity Yes verified 2026-07-11
or selectively restore individual files from a snapshot
https://kopia.io/docs/faqs/ -
Open source Yes verified 2026-07-11
Apache License, Version 2.0, January 2004
https://github.com/kopia/kopia/blob/master/LICENSE -
Compression Yes verified 2026-07-11
Kopia can compress your data to save storage and bandwidth. Several compression methods are supported
https://kopia.io/docs/features/
FAQ
Yes. Restic, Vorta and IDrive have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.
Duplicati, Restic and Vorta — every license claim links its source.