# Alternatives to Duplicati

Open source encrypted backup to any cloud.

Duplicati ranks #1 of 12 in Backup software, with an Alt Score of 100. It is licensed under MIT, open source with paid hosting from $2/machine/month and available on Windows, macOS and Linux. 10 of 10 checklist rows are verified against a public source.

Source: https://altcatalog.com/alternatives/duplicati/
Category: Backup software

## Where Duplicati stands out

- **Open source** — 5 of 12 apps with a verified answer have this

## Overview

- **Who it's for**: Individuals and technical users (e.g., self-hosters, sysadmins) who want to back up personal or server files to cloud or remote storage without paying for a commercial backup service.
- **What you get**: Duplicati produces encrypted, incremental, deduplicated backups, encrypting data locally (AES-256) before it leaves your machine. It supports a wide range of storage backends, including S3, Azure Blob, Google Drive, Dropbox, OneDrive, SFTP, WebDAV, and local/external drives. A local web UI lets you configure backup jobs, schedules, and retention policies (keep N versions or backups for a set duration).
- **How it works**: You install the client, then use its web interface to define a backup job: pick source folders, a destination/storage backend, an encryption passphrase, and a schedule. Duplicati then runs backups in the background, uploading only changed data blocks, and you restore files by browsing and selecting from the stored versions through the same web UI.

## Profile

- **License**: MIT (verified 2026-07-11)
- **Pricing model**: OSS + paid hosting (verified 2026-07-11)
- **Starts at**: $2/machine/month (verified 2026-07-11)
- **Platforms**: Windows, macOS, Linux
- **Status**: active (verified 2026-07-11)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [Kopia](https://altcatalog.com/alternatives/kopia.md) | 100 | Apache-2.0 | Windows, macOS, Linux |
| 2 | [Duplicacy](https://altcatalog.com/alternatives/duplicacy.md) | 96 | Proprietary | Windows, macOS, Linux |
| 3 | [Restic](https://altcatalog.com/alternatives/restic.md) | 96 | BSD-2-Clause | Windows, macOS, Linux |
| 4 | [Arq](https://altcatalog.com/alternatives/arq.md) | 91 | Proprietary | Windows, macOS |
| 5 | [Vorta](https://altcatalog.com/alternatives/vorta.md) | 86 | GPL-3.0 | macOS, Linux |
| 6 | [IDrive](https://altcatalog.com/alternatives/idrive.md) | 82 | Proprietary | Windows, macOS, Linux, iOS |
| 7 | [SpiderOak](https://altcatalog.com/alternatives/spideroak.md) | 82 | Proprietary | Windows, macOS, Linux |
| 8 | [UrBackup](https://altcatalog.com/alternatives/urbackup.md) | 82 | AGPL-3.0 | Windows, macOS, Linux |
| 9 | [Backblaze](https://altcatalog.com/alternatives/backblaze.md) | 64 | Proprietary | Windows, macOS |
| 10 | [Carbonite](https://altcatalog.com/alternatives/carbonite.md) | 42 | Proprietary | Windows, macOS |
| 11 | [Acronis](https://altcatalog.com/alternatives/acronis.md) | 37 | Proprietary | Windows, macOS, iOS, Android |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Feature comparison

Legend: Yes / No / Partial / ? (not verified).

| Backup software checklist | Duplicati | Kopia | Duplicacy | Restic | Arq | Vorta |
|---|---|---|---|---|---|---|
| Pricing model | OSS + paid hosting | Free | Subscription | Free | One-time | Free |
| Starts at | $2/machine/month | ? | $20/year | ? | $49.99 one-time (per computer) | ? |
| License | MIT | Apache-2.0 | Proprietary | BSD-2-Clause | Proprietary | GPL-3.0 |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux | Windows, macOS, Linux | Windows, macOS, Linux | Windows, macOS | macOS, Linux |
| Incremental backups | Yes | Yes | Yes | Yes | Yes | ? |
| E2E encryption | Yes | Yes | Yes | Yes | Yes | Yes |
| Deduplication | Yes | Yes | Yes | Yes | Yes | Yes |
| Cloud targets supported | Yes | Yes | Yes | Yes | Yes | Partial |
| Local / NAS targets | Yes | Yes | Yes | Yes | Yes | Yes |
| Scheduling | Yes | Yes | Yes | Partial | Yes | Yes |
| Versioning & retention policies | Yes | Yes | Yes | Yes | Yes | Yes |
| Restore granularity | Yes | Yes | Yes | Yes | Yes | Yes |
| Open source | Yes | Yes | Partial | Yes | No | Yes |
| Compression | Yes | Yes | Yes | Yes | Yes | Yes |

## Sources

Sources for Duplicati. Each alternative is sourced on its own page.

- **License**: MIT — <https://github.com/duplicati/duplicati/blob/master/LICENSE> (verified 2026-07-11)
  - Note: Software")"
  - Quote: “Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ”
- **Pricing model**: OSS + paid hosting — <https://duplicati.com/pricing> (verified 2026-07-11)
  - Note: $0 USD" - "Always free" with basic features including insights dashboard and monitoring up to 2 machines."
  - Quote: “Free Tier: ”
- **Starts at**: $2/machine/month — <https://duplicati.com/pricing> (verified 2026-07-11)
  - Note: $2 USD" per machine/month (annual billing), up to 100 machines"
  - Quote: “Pro Tier: ”
- **Platforms**: Windows, macOS, Linux — <https://github.com/duplicati/duplicati/blob/master/README.md> (verified 2026-07-11)
  - Quote: “Duplicati is licensed under the MIT license and is available for Windows, macOS, and Linux.”
- **Status**: active — <https://github.com/duplicati/duplicati/releases/tag/v2.3.0.4_stable_2026-07-09> (verified 2026-07-11)
  - Quote: “v2.3.0.4_stable_2026-07-09”
- **Incremental backups**: Yes — <https://github.com/duplicati/duplicati/blob/master/README.md> (verified 2026-07-11)
  - Quote: “Only initial backup is with full contents, all additional backups are differential to save bandwidth and storage”
- **E2E encryption**: Yes — <https://duplicati.com/individuals> (verified 2026-07-11)
  - Quote: “Duplicati runs your backups in the background, encrypts your data before it leaves your device, and keeps everything up to date automatically.”
- **Deduplication**: Yes — <https://docs.duplicati.com/technical-details/architecture-premises> (verified 2026-07-11)
  - Quote: “Blocks are only stored once to reduce storage space (deduplication)”
- **Cloud targets supported**: Yes — <https://github.com/duplicati/duplicati/blob/master/README.md> (verified 2026-07-11)
  - Quote: “Amazon S3, IDrive e2, Backblaze (B2), Box, Dropbox, FTP, Google Cloud and Drive, MEGA, Microsoft Azure and OneDrive, Rackspace Cloud Files, OpenStack Storage (Swift), Storj DCS, SSH (SFTP), WebDAV”
- **Local / NAS targets**: Yes — <https://github.com/duplicati/duplicati/blob/master/README.md> (verified 2026-07-11)
  - Quote: “Encrypted backups can be transferred to destinations like FTP, WebDAV, SSH (SFTP), Amazon S3, and more.”
- **Scheduling**: Yes — <https://github.com/duplicati/duplicati/blob/master/README.md> (verified 2026-07-11)
  - Quote: “Built-in scheduler ensures backups stay up-to-date automatically.”
- **Versioning & retention policies**: Yes — <https://duplicati.com/individuals> (verified 2026-07-11)
  - Quote: “Easily choose how long your backups are kept. From simple options to advanced or your own custom rules.”
- **Restore granularity**: Yes — <https://docs.duplicati.com/getting-started/restoring-files> (verified 2026-07-11)
  - Note: Continue"."
  - Quote: “Click the files or folders that you want to restore and then click ”
- **Open source**: Yes — <https://github.com/duplicati/duplicati/blob/master/LICENSE> (verified 2026-07-11)
  - Quote: “MIT License”
- **Compression**: Yes — <https://docs.duplicati.com/technical-details/architecture-premises> (verified 2026-07-11)
  - Quote: “Volumes are compressed to save storage space (compression)”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/