Downloads of v 2.7.2:


Last Update:

19 Nov 2020

Package Maintainer(s):

Software Author(s):

  • Acrosync LLC


duplicacy backup


  • 1
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2.7.2 | Updated: 19 Nov 2020



Downloads of v 2.7.2:



Software Author(s):

  • Acrosync LLC

  • 1
  • 2
  • 3
duplicacy 2.7.2

  • 1
  • 2
  • 3

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Validation Testing Passed

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Scan Testing Resulted in Flagged:

This package was submitted (and approved) prior to automated virus scanning integration into the package moderation processs.

We recommend clicking the "Details" link to make your own decision on installing this package.

Learn More

Deployment Method: Individual Install, Upgrade, & Uninstall

To install duplicacy, run the following command from the command line or from PowerShell:


To upgrade duplicacy, run the following command from the command line or from PowerShell:


To uninstall duplicacy, run the following command from the command line or from PowerShell:


Deployment Method:

📝 NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Enter Your Internal Repository Url

(this should look similar to

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Copy Your Script

choco upgrade duplicacy -y --source="'INTERNAL REPO URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade duplicacy -y --source="'INTERNAL REPO URL'" 

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Install duplicacy
    name: duplicacy
    version: '2.7.2'
    state: present

See docs at

chocolatey_package 'duplicacy' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '2.7.2'

See docs at

cChocoPackageInstaller duplicacy
    Name     = "duplicacy"
    Version  = "2.7.2"
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at

package { 'duplicacy':
  ensure   => '2.7.2',
  provider => 'chocolatey',
  source   => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

Private CDN cached downloads available for licensed customers. Never experience 404 breakages again! Learn more...

This package was approved as a trusted package on 21 Nov 2020.


Duplicacy is a new generation cross-platform cloud backup tool based on the idea of Lock-Free Deduplication.

This repository hosts source code, design documents, and binary releases of the command line version of Duplicacy. There is also a Duplicacy GUI frontend built for Windows and Mac OS X available from

There is a special edition of Duplicacy developed for VMware vSphere (ESXi) named Vertical Backup that can back up virtual machine files on ESXi to local drives, network or cloud storages.


There are 3 core advantages of Duplicacy over any other open-source or commercial backup tools:

  • Duplicacy is the only cloud backup tool that allows multiple computers to back up to the same cloud storage, taking advantage of cross-computer deduplication whenever possible, without direct communication among them. This feature literally turns any cloud storage server supporting only a basic set of file operations into a sophisticated deduplication-aware server.

  • Unlike other chunk-based backup tools where chunks are grouped into pack files and a chunk database is used to track which chunks are stored inside each pack file, Duplicacy takes a database-less approach where every chunk is saved independently using its hash as the file name to facilitate quick lookups. The lack of a centralized chunk database not only makes the implementation less error-prone, but also produces a highly maintainable piece of software with plenty of room for development of new features and usability enhancements.

  • Duplicacy is fast. While the performance wasn't the top-priority design goal, Duplicacy has been shown to outperform other backup tools by a considerable margin, as indicated by the following results obtained from a benchmarking experiment backing up the Linux code base using Duplicacy and 3 other open-source backup tools.

Comparison of Duplicacy, restic, Attic, duplicity

Getting Started


Duplicacy currently provides the following storage backends:

  • Local disk
  • SFTP
  • Dropbox
  • Amazon S3
  • Wasabi
  • DigitalOcean Spaces
  • Google Cloud Storage
  • Microsoft Azure
  • Backblaze B2
  • Google Drive
  • Microsoft OneDrive
  • Hubic
  • OpenStack Swift
  • WebDAV (under beta testing)
  • pcloud (via WebDAV)
  • (via WebDAV)

Please consult the wiki page on how to set up Duplicacy to work with each cloud storage.

For reference, the following chart shows the running times (in seconds) of backing up the Linux code base to each of those supported storages:

Comparison of Cloud Storages

For complete benchmark results please visit


$ErrorActionPreference = 'Stop';
$toolsDir   = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
$url        = ''
$url64      = ''
$checksum      = '100c4a6be05bde5c562a194adbf89e2e0175e477153b8840febc60acad76e1a9'
$checksumType  = 'sha256'
$checksum64    = '6a270aa0e1ab44bc00f0114055f034cc569f84e0c91ebaf52384edc9e5243083'
$checksumType64= 'sha256'

Get-ChocolateyWebFile -PackageName $packageName -FileFullPath $toolsDir\'duplicacy.exe' -Url $url -Url64bit $url64 -Checksum $checksum -ChecksumType $checksumType -Checksum64 $checksum64 -ChecksumType64 $checksumType64

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Add to Builder Version Downloads Last Updated Status
duplicacy 2.7.1 144 Friday, October 2, 2020 Approved
duplicacy 2.7.0 81 Sunday, September 27, 2020 Approved
duplicacy 2.6.2 104 Monday, August 31, 2020 Approved
duplicacy 2.6.1 133 Wednesday, July 8, 2020 Approved
duplicacy 2.6.0 61 Monday, July 6, 2020 Approved
duplicacy 2.5.2 167 Sunday, May 17, 2020 Approved
duplicacy 2.2.3 219 Friday, October 4, 2019 Approved

This package has no dependencies.

Discussion for the duplicacy Package

Ground Rules:

  • This discussion is only about duplicacy and the duplicacy package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or duplicacy, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.
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