Easy and efficient file synchronization and backup solutions

rsync client

Acrosync for Windows

The only native rsync client for Windows

Acrosync for Mac

A great tool for file sync and backup

Acrosync for iOS

Enjoy the power of rsync on mobile devices

modern cloud backup

Duplicacy for Windows/Mac/Linux

Duplicacy is a new generation network and cloud backup tool based on the idea of Lock-Free Deduplication. Currently it supports local drives, SFTP servers, Amazon S3, Wasabi, Backblaze B2, Microsoft Azure, Google Cloud Storage, Google Drive, OneDrive, Dropbox, and Hubic

Vertical Backup for VMware ESXi

Vertical Backup is a special edition of Duplicacy developed for VMware vSphere (ESXi) which can backup virtual machines to networked drives, SFTP server, Amazon S3, Wasabi, Microsoft Azure, and Backblaze B2.

Open Source

Acrosync Library

At the heart of our Acrosync products is a C++ rsync client library written from scratch and therefore not subject to GPL. It is available on GitHub under the Reciprocal Public License. Contact us if you are interested in a commercial license.


The source code of the command line version of Duplicacy is publicly available and completely free to personal users.