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Duplicacy Web Edition
Duplicacy Web Edition
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Duplicacy Web Edition free download for Mac

Duplicacy Web Edition

Version 1.2.1

Web interface to the open source backup tool.

Duplicacy Web Edition overview

Duplicacy Web Edition is a web interface to the popular open-source backup tool. Unlike other backup tools, Duplicacy is built on top of a novel idea called Lock-Free Deduplication, which works by relying on the basic file system API to manage deduplicated chunks without using any locks. A two-step fossil collection algorithm is devised to solve the fundamental problem of deleting unreferenced chunks under the lock-free condition, making the deletion of old backups possible without using a centralized chunk database.

Thanks to Lock-Free Deduplication, Duplicacy work smoothly with most cloud storage services without compromising any essential features required of a state-of-the-art backup tool. In addition, Duplicacy also supports local disks and your own SFTP servers such as Mac or Linux computers, or NAS boxes.

With the newly designed web-based GUI you can effortlessly set up backup, copy, check, and prune jobs that will reliably protect your data while making the most efficient use of your storage space. The intuitive dashboard includes several statistical charts that help you monitor the overall health of your backups and storages at a mere glance.

  • Incremental backup: only back up what has been changed
  • Full snapshot : although each backup is incremental, it must behave like a full snapshot for easy restore and deletion
  • Deduplication: identical files must be stored as one copy (file-level deduplication), and identical parts from different files must be stored as one copy (block-level deduplication)
  • Encryption: encrypt not only file contents but also file paths, sizes, times, and attributes.
  • Deletion: every backup can be deleted independently without affecting others
  • Concurrent access: multiple clients can back up to the same storage at the same time
  • Snapshot migration: all or selected snapshots can be migrated from one storage to another
Supported Storages:
  • Local disk
  • SFTP
  • Amazon S3
  • DigitalOcean Spaces
  • Minio S3
  • Backblaze B2
  • Google Cloud Storage
  • Microsoft Azure
  • Google Drive
  • Microsoft OneDrive
  • OpenStack Swift
  • WebDav

What’s new in version 1.2.1

Updated on Feb 13 2020

Version 1.2.1:
New Features
  • HTTP reports
  • Maximum run time for schedule
  • Allow global options to set for a job (such as `-v`)
  • Add an option to exclude log messages with certain IDs when sending email notifications
Bug fixes
  • Fixed layout bugs in the password dialog and enabled the Enter key to work
  • Disable text cursor in the file browsing dialog
  • Open forum in a new window
  • Correctly handle storage names that contain dots
  • Fixed a bug that causes a new administration password to be rejected on the first start
  • Fixed a potential deadlock issue when stopping a schedule
  • Append * to directory include/exclude patterns
  • Ignore deletion error when the filters file doesn't exist
  • SMTP fixes: set timeout when connecting to the SMTP server; supply real hostname instead of `localhost` in case some server requires it
  • Upgrade the crypto library to support the ACME v2 API required by Let's Encrypt





14.4 MB

Developer’s website




App requirements

  • Intel 64
  • Mac OS X 10.4 or later
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