Free backup software to store encrypted backups online for Windows!

Duplicati
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Duplicati

  -  92.68 MB  -  Open Source
Free Download

Safe & Secure

  • Latest Version

    Duplicati 2.3.0.4 (64-bit) LATEST

  • Review by

    Michael Reynolds

  • Operating System

    Windows 7 64 / Windows 8 64 / Windows 10 64 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Duplicati Team / External Link

  • Filename

    duplicati-2.3.0.4_stable_2026-07-09-win-x64-gui.msi

  • MD5 Checksum

    214926c2cd7f01dd231285723d0c9e5b

Duplicati is a free backup program to store encrypted backups online for PC! It works with standard protocols like FTP, SSH, WebDAV as well as popular services like Microsoft OneDrive, Amazon Cloud Drive & S3, Google Drive, box.com, Mega, hubiC, and many others.

Duplicati Screenshot 1

Backup files and folders with strong AES-256 encryption. Save space with incremental backups and data deduplication. Run backups on any machine through the web-based interface or via a command-line interface. It has a built-in scheduler and auto-updater.

Duplicati is free software and open source. You can use the app for free even for commercial purposes. The source code is licensed under LGPL. Duplicati runs under Windows, Linux, macOS.

It requires the.NET Framework 4.5 or Mono. It uses strong AES-256 encryption to protect your privacy. You can also use GPG to encrypt your backup.

It was designed for online backups from scratch. It is not only data efficient but also handles network issues nicely. E.g. interrupted backups can be resumed and the program tests the content of backups regularly. That way broken backups on corrupt storage systems can be detected before it’s too late.

The backup app is configured by a web interface that runs in any browser (even mobile) and can be accessed - if you like - from anywhere. This also allows running the app on headless machines like a NAS (network-attached storage).

Features and Highlights
  • It uses AES-256 encryption (or GNU Privacy Guard) to secure all data before it is uploaded.
  • Duplicati uploads a full backup initially and stores smaller, incremental updates afterward to save bandwidth and storage space.
  • A scheduler keeps backups up-to-date automatically.
  • Encrypted backup files are transferred to targets like FTP, Cloudfiles, WebDAV, SSH (SFTP), Amazon S3, and others.
  • It allows backups of folders, document types like e.g. documents or images, or custom filter rules.
  • The app is available as an application with an easy-to-use user interface and a command-line tool.
  • The program can make proper backups of opened or locked files using the Volume Snapshot Service (VSS) under Windows or the Logical Volume Manager (LVM) under Linux.
Compatible with your storage providers

Azure Blob Storage
Efficient, cost-effective tiered storage solution ideal for long-term data retention.

Dropbox
Cloud storage with time-saving features for seamless file access and sharing.

Google Cloud Storage
A fully managed service designed for scalable storage of unstructured data.

OneDrive
Microsoft's personal cloud storage solution for secure online file management.

Amazon S3
Offers object storage accessible via a web service interface.

SFTP Server
A secure communication protocol with multiple layers of security architecture.

External Hard Drive
An at-home solution for creating and maintaining personal data backups.

Box.com
Cloud-based collaboration and file-sharing platform tailored for businesses.

Network-Attached Storage (NAS)
A storage solution that allows local file access over a network.

Pricing

FREE
  • Monitor backups from anywhere
  • Secure credential storage (planned)
  • Insights dashboard
  • Monitor up to 5 machines
  • View the last 200 backups
  • 1 year monitoring retention
  • Community support
Duplicati Pro - $5

Per machine/month. Billed yearly
  • Org Management
  • Monitoring & alerts webhooks
  • Advanced backup anomaly alerting
  • 3 year monitoring retention
  • View the last 200 backups
  • Priority support
  • Cloud based backup management
PROS
  • Supports multiple backends.
  • Strong encryption (AES-256).
  • Incremental backups and deduplication.
  • Cross-platform compatibility.
  • Free and open-source.
  • Web-based interface for easy access.
CONS
  • Requires .NET 4.5 or Mono.
  • Encryption setup may be complex.
  • Web-based interface might not suit all users.
  • Limited mention of mobile app support.
  • Dependency on network connectivity for online backups.


Download Duplicati Latest Version
Why is this app published on FileHorse? (More info)

  • Duplicati 2.3.0.4 (64-bit) Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Duplicati 2.3.0.4 (64-bit) Screenshot 1

What's new in this version:

Security and Privacy:
- We improved handling of filtered paths so that paths excluded by filters are no longer accessed, and sensitive paths are now filtered out of reported log data. For reports we now rely on the OS default certificate validator.

Stability Fixes:
- We fixed a memory leak that could occur when backing up the macOS Photos library, and fixed a startup race condition in the Agent that could cause instability on launch.
- We also made the backup process more robust against metadata errors, preventing a crash that could otherwise abort the backup.

Backend and Configuration Improvements:
- The Duplicati backend now has a configurable authentication timeout, and the HTTP message sending logic now retries transient failures correctly.
- We also fixed the handling of MSSQL default instances, and corrected the option types for the S3 lock mode so the correct values are displayed.

Secret Provider and Licensing:
- It is now possible to disable the default secret provider, and the secret provider loader has been improved together with the license checker for greater flexibility.
- The libsecret integration was updated to work better with KDE, and we now prevent creating a useless encryption key in certain scenarios.

Other Changes:
- This release adds server-side filter evaluation, fixes a few minor issues with remote sources, updates rclone in the Docker images, and corrects some incorrect help text.

Detailed list of changes:
- Allow disable default secret provider
- Block path traversal in recovery tool
- Add server-side filter eval
- Improve license flexibility
- Add an auth timeout to the Duplicati backend
- Avoid crash on metadata error
- Filter paths in reported log data
- Don't access filtered path
- Fixed retry of HTTP messages
- Fix incorrect option types for lock mode
- Fix MSSQL default instance handling
- Update libsecret for KDE
- Improve secret provider and license checker
- Prevent creating a useless key
- Fix incorrect help text
- Fix Agent startup race
- Fix MacOS Photos memory usage
- Update rclone in Docker images
- Fix minor issues with remote sources
- Use default OS certificate validator

Updates to ngclient:
- Prevent frontend from requesting lock repair override
- Added ability to browse for a destination path
- Added support for browsing MS365 and Google Workspace, so filters can be applied while content is visible
- Added support for server-side filters in treeview
- Showing shortcuts in pickers as we can now resolve them
- Added a debouncer to filter calls
- Added error indicator to tree view
- Clean up target disk layout
- Apply extended search only if we are restoring from a destination that needs it
- Include server-only options, if any
- Better Google Workspace error messages
- Fixes to allow listing full disks on Windows
- Fixed issue with evaluating globbing

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