macOS
Homebrewverified · 100%
brew install duplicitylocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install duplicityMacPorts ports tree · sysutils/duplicity/Portfile · source: api.github.com
brew
Install duplicity with Homebrew, apk, apt, dnf, MacPorts, Nix, pacman, zypper
Bandwidth-efficient encrypted backup. Version 3.1.0 via Homebrew; verified 2026-06-22.
install
Additional install commands
Linux
Alpine Linux apkverified · 92%
sudo apk add duplicityAlpine Linux edge package indexes · duplicity · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install duplicityDebian stable package indexes · duplicity · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install duplicityFedora Rawhide package metadata · duplicity · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#duplicitynixpkgs package indexes · pkgs/by-name/du/duplicity/package.nix · source: api.github.com
Arch Linux pacmanverified · 92%
sudo pacman -S duplicityArch Linux sync databases · duplicity · source: geo.mirror.pkgbuild.com
openSUSE zypperverified · 92%
sudo zypper install duplicityopenSUSE Tumbleweed package metadata · duplicity · source: download.opensuse.org
overview
Package summary
Bandwidth-efficient encrypted backup
Project links
Commands and aliases
- duplicity
history
Project history and usage
duplicity is a long-running encrypted, bandwidth-efficient backup tool. It backs up directories by creating encrypted tar-format volumes and uploading them to local or remote storage, using librsync so incrementals record only changed parts of files.
Project history
duplicity's public identity has stayed remarkably stable: encrypted remote backups built from tar, GnuPG, and the rsync algorithm. The official site describes this design directly and notes that the package also includes `rdiffdir`, an extension of librsync's `rdiff` idea to directories.
The project later moved its public development to GitLab, where the repository metadata records the current project namespace as created in 2019. The official site still links to older Launchpad downloads for historical releases, showing a longer project history than the GitLab creation date alone.
By 2026 duplicity had reached the 3.x series, with the official site listing 3.1.0 as the current release on June 16, 2026. The stable README also reflects modern Python packaging changes, recommending pipx/venv-style installs for Python 3.11-era externally managed environments.
Adoption history
duplicity's adoption rests on a simple Unix promise: encrypted incremental backups to many storage protocols from a CLI. The official site says it is mature software used for large personal and corporate backups.
The project is packaged broadly across Homebrew, Alpine, Debian, Fedora, MacPorts, Nix, Arch, Ubuntu, and openSUSE-style ecosystems in the batch metadata. The official site also names Fedora, Debian, and Ubuntu distribution inclusion, reinforcing its long-standing Linux distribution presence.
Its ecosystem includes frontends such as Déjà Dup and duply. The official duplicity homepage points to Déjà Dup releases and describes duply as a shell frontend formerly known as ftplicity.
How it is used
Typical usage is to run duplicity against a source directory and a target URL, using GnuPG keys or passphrases for encryption/signing and a backend URL for storage. Supported backends listed by the official site include S3, Backblaze B2, Dropbox, FTP, GIO, Google Drive, IMAP, local filesystem, Mega, Azure, OneDrive, rclone, rsync, SSH/SCP, SwiftStack, Tahoe-LAFS, and WebDAV.
duplicity supports deleted files, Unix permissions, directories, symbolic links, FIFOs, and device files, but the official site notes hard links are not supported. Administrators often wrap it in cron jobs, system scripts, duply profiles, or GUI frontends.
Why package nerds care
duplicity matters to package maintainers because it is old, security-sensitive infrastructure at the intersection of Python packaging, GnuPG, librsync, remote-storage SDKs, and system backup policy.
It also anchors a family of related packages. Duplicacy's README compares itself directly with duplicity, and duply exists primarily to profile and automate duplicity invocations. That makes duplicity both an executable and a reference point in backup-tool design debates.
Timeline
- 2000s: duplicity establishes its core model of encrypted tar volumes plus librsync-based incrementals.
- 2019: The current GitLab project namespace is created.
- 2025: duplicity 3.0.x releases continue through GitLab tags.
- 2026: duplicity 3.1.0 is released on June 16, 2026 according to the official homepage.
Related projects
- librsync and GnuPG are core dependencies in duplicity's design.
- rdiff-backup is historically adjacent and is linked from duplicity's site.
- Déjà Dup and duply are prominent frontends called out by the official homepage.
- Duplicacy, restic, Duplicati, bup, and Attic are related backup tools often compared with duplicity.
Sources
- https://duplicity.us/ documents the core design, maturity/adoption statement, supported backends, current release, related frontends, and distribution inclusion.
- https://duplicity.us/stable/README.html documents modern installation and development guidance.
- https://duplicity.us/stable/duplicity.1.html documents command-line behavior and backend URL usage.
- https://gitlab.com/api/v4/projects/duplicity%2Fduplicity documents current GitLab repository metadata.
- https://gitlab.com/api/v4/projects/duplicity%2Fduplicity/repository/tags?per_page=20 documents recent release tags.
security posture
No protected-tool coverage found yet
No matching local secret-handling manifest was found for duplicity. Nucleus package metadata is still published here so future coverage has a stable package URL.
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 7 runtime dependencies.
- Build metadata lists 3 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
duplicity | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version3.1.0
manager updated2026-06-22
local dataok
upstreamnot checked
latest detectednot detected
https://gitlab.com/duplicity/duplicity
- infoRelease/tag comparison is only available for GitHub repositories.https://gitlab.com/duplicity/duplicitynone confidence
install metadata
Package metadata
| Package key | brew:duplicity |
|---|---|
| Version | 3.1.0 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/duplicity |
| Homepage | https://gitlab.com/duplicity/duplicity |
| Repository | https://gitlab.com/duplicity/duplicity |
| Upstream docs | https://duplicity.us/docs.html |
| License | GPL-2.0-or-later |
| Source archive | https://files.pythonhosted.org/packages/ee/5e/6085f6c98ca17f689ef70862749facced6cf708c4496d6241f603471fb37/duplicity-3.1.0.tar.gz |
| Last updated | 2026-06-22T14:03:12-07:00 |
| Pulse | updated |
| Dependencies | certifi, cryptography, gnupg, librsync, libsodium, libyaml, python@3.14 |
| Build dependencies | gettext, pkgconf, rust |
| Uses from macOS | libffi, libxml2, libxslt |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | duplicity |
| Version Scheme | 0 |
| Revision | 1 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
duplicity 3.0.4-1+b1
encrypted bandwidth-efficient backup
sudo apt install duplicity- Section: utils
- Architecture: amd64
- Source Package: duplicity
- 13 dependencies
- 10 optional deps
- normalized package name match
- Matched by: Duplicity
Nix95%
duplicity
nix profile install nixpkgs#duplicity- normalized package name match
- Matched by: Duplicity
Ubuntu apt95%
duplicity 2.1.4-3ubuntu2
encrypted bandwidth-efficient backup
sudo apt install duplicity- Section: utils
- Architecture: amd64
- 7 dependencies
- 12 optional deps
- normalized package name match
- Matched by: Duplicity
apk95%
duplicity 3.0.7-r0
Encrypted bandwidth-efficient backup using the rsync algorithm
https://duplicity.gitlab.io/duplicity-web/
sudo apk add duplicity- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: duplicity
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Duplicity
apk95%
duplicity-doc 3.0.7-r0
Encrypted bandwidth-efficient backup using the rsync algorithm (documentation)
https://duplicity.gitlab.io/duplicity-web/
sudo apk add duplicity-doc- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: duplicity
- normalized package name match
- Matched by: Duplicity
apk95%
duplicity-lang 3.0.7-r0
Languages for package duplicity
https://duplicity.gitlab.io/duplicity-web/
sudo apk add duplicity-lang- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: duplicity
- normalized package name match
- Matched by: Duplicity
apk95%
duplicity-pyc 3.0.7-r0
Precompiled Python bytecode for duplicity
https://duplicity.gitlab.io/duplicity-web/
sudo apk add duplicity-pyc- License: GPL-2.0-or-later
- Architecture: x86_64
- Source Package: duplicity
- 1 dependencies
- normalized package name match
- Matched by: Duplicity
dnf95%
duplicity 3.0.7-4.fc45
Encrypted bandwidth-efficient backup using rsync algorithm
sudo dnf install duplicity- License: GPL-2.0-or-later AND MIT AND GPL-3.0-or-later
- Category: Unspecified
- Architecture: x86_64
- Source Package: duplicity
- 10 dependencies
- 3 provides
- normalized package name match
- Matched by: Duplicity
pacman95%
duplicity 3.0.7-2
A utility for encrypted, bandwidth-efficient backups using the rsync algorithm
sudo pacman -S duplicity- License: GPL-2.0-only
- Architecture: x86_64
- 4 dependencies
- 15 optional deps
- normalized package name match
- Matched by: Duplicity
zypper95%
duplicity 3.0.7-2.3
Encrypted bandwidth-efficient backup using the rsync algorithm
sudo zypper install duplicity- License: GPL-3.0-or-later
- Category: Productivity/Archiving/Backup
- Architecture: x86_64
- Source Package: duplicity
- 9 dependencies
- 3 provides
- normalized package name match
- Matched by: Duplicity
zypper95%
duplicity-lang 3.0.7-2.3
Translations for package duplicity
sudo zypper install duplicity-lang- License: GPL-3.0-or-later
- Category: System/Localization
- Architecture: noarch
- Source Package: duplicity
- 1 dependencies
- 3 provides
- normalized package name match
- Matched by: Duplicity
MacPorts95%
duplicity
sudo port install duplicity- normalized package name match
- Matched by: Duplicity
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment