duplicity

Install command: 
brew install duplicity

Bandwidth-efficient encrypted backup

https://gitlab.com/duplicity/duplicity

License: GPL-2.0-or-later

Development: Pull requests

Formula JSON API: /api/formula/duplicity.json

Formula code: duplicity.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 golden gate ✅
tahoe ✅
sequoia ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 3.2.1

Depends on:

certifi 2026.10.23 Mozilla CA bundle for Python
cryptography 50.0.2 Cryptographic recipes and primitives for Python
gnupg 2.5.24 GNU Privacy Guard (OpenPGP)
librsync 2.3.4 Library that implements the rsync remote-delta algorithm
libsodium 1.0.22 NaCl networking and cryptography library
libyaml 0.2.5 YAML Parser
python@3.15 3.15.2 Interpreted, interactive, object-oriented programming language

Depends on when building from source:

gettext 1.0 GNU internationalization (i18n) and localization (l10n) library
pkgconf 3.0.10 Package compiler and linker metadata toolkit
rust 1.99.1 Safe, concurrent, practical language

Uses from macOS: libffi, libxml2 (since macOS Ventura), libxslt

Binaries: duplicity

Analytics:

30 days90 days365 days
Installs1454073,226
Installs (--HEAD)015
Installs on Request1333843,078
Installs on Request (--HEAD)015
Build Errors0

Known vulnerabilities in the current version:

GHSA-wj6h-64fc-37mp (high) Minerva timing attack on P-256 in python-ecdsa
GHSA-vp96-hxj8-p424 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_...
GHSA-5pwr-322w-8jr4 pyOpenSSL DTLS cookie callback buffer overflow
GHSA-3jp2-3mrg-2vxc (high) OAuthLib: Bearer token can be retrieved as long as client knows a valid client ID for device work...

Data from Homebrew/advisory-database. Run brew vulns duplicity for a live check.