BorgBackup vs Duplicacy
BorgBackup
borgbackup.org
Duplicacy
duplicacy.comSide by side
| Figure | BorgBackup | Duplicacy |
|---|---|---|
| Price from | Free | $0.17/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 12 |
| Spec score · NAS Backup Software | 8.4 (#16) | 9.2 (#3) |
| Spec score · Backup software | 8.1 (#56) | 9.0 (#15) |
| Backup scope | mixed | file |
| Computer backup | Yes | Yes |
| Deduplication | Content-defined chunking stores each new chunk once, including across files, backups, and machines sharing a repository. | Its lock-free deduplication design uses a two-step fossil collection algorithm to delete unreferenced chunks without a centralized chunk database. |
| Encryption | Borg supports client-side 256-bit AES encryption and verifies data integrity and authenticity with HMAC-SHA256. | Storage encryption is optional during initialization and uses a user-supplied password; leaving it blank leaves backups unencrypted. |
| Free plan | Yes | Yes |
| Integrations | The project lists BorgBase repository hosting, Hetzner Storage Box with Borg support, and rsync.net cloud storage with Borg support. | The user guide documents storage setups for Microsoft Azure, Dropbox, Google Drive, OneDrive, Wasabi, DigitalOcean Spaces, and MinIO. |
| Platforms | The documentation lists binaries for Linux, macOS, FreeBSD, OpenBSD, and NetBSD; Cygwin and Windows Subsystem for Linux are listed with experimental limitations. | windows,macos,linux |
| Purpose | BorgBackup is a deduplicating backup program with optional compression and authenticated encryption. | Duplicacy is a cross-platform backup tool that backs up files to cloud storage with client-side encryption and deduplication. |
| Restore modes | file | file |
| Support | Free community support is available through documentation, the issue tracker, IRC, Matrix, and the mailing list. | Personal GUI licenses include public forum support, while commercial GUI and CLI licenses include private ticket support. |
Plans
Duplicacy
- Personal License — first year$20 a year
- Personal License — subsequent years$5 a year
- Personal License — additional computer, first year$10 a year
- Personal License — additional computer, subsequent years$2 a year
- Commercial License$50 a year
- CLI License$50 a year
- CLI personal useFree
- Personal GUI license$20 a year
- Personal GUI License$20 a year
- CLI license$50 a year
In their own words
BorgBackup
BorgBackup is free, open-source backup software for computers and servers on Linux, macOS and Windows. It uses content-defined chunking so repeated chunks are stored once, including across files, backups and machines sharing a repository. Optional compression is available with lz4, zstd, zlib and lzma. Client-side 256-bit AES encryption protects backups, while HMAC-SHA256 verifies data integrity and authenticity. Backups can be stored on remote hosts over SSH. Archives can be mounted as user-space file systems for interactive browsing and file restores. Listed repository and storage options include BorgBase, Hetzner Storage Box and rsync.net. Community help is available through documentation, the issue tracker, IRC, Matrix and a mailing list; commercial consulting, support and development are also listed. BorgBackup is licensed under BSD 3-clause, and its documentation says security and functionality can be independently audited. The site identifies version 1.4.5 as stable; the 2.0 beta remains in testing and should not be used in production. Major-version changes may repeatedly break compatibility.
Duplicacy
Duplicacy is a cross-platform tool for backing up files to cloud storage, local disks, or SFTP servers, including computers and NAS boxes. It supports Windows, macOS, and Linux. Client-side encryption is optional: users set a password when initializing storage to encrypt it, while leaving the password empty means storage is not encrypted. Its lock-free deduplication design uses a two-step fossil collection process to remove chunks that are no longer referenced, without a centralized chunk database. The Web Edition can back up, restore, check, copy, and prune data, with scheduling and email notifications; its dashboard displays storage and backup status. The CLI can run manually or from scripts, and its source code is available on GitHub. CLI personal backups on a home computer and CLI restore, check, copy, and prune operations do not require a license. The Web Edition downloads a fully functional 30-day trial license automatically when used for backups without a license. Paid licenses vary by use and computer count; the listed personal license costs $20 a year for the first year and $5 a year thereafter for one home computer.