Download Duplicati – Encrypted Backup Windows, macOS, Linux

What Is Duplicati and Why It Matters

Duplicati is a free, open‑source backup solution that combines strong encryption with a flexible storage model. Designed for both home users and small‑to‑medium businesses, the tool lets you protect sensitive files on your local hard drive by automatically creating encrypted copies in the cloud or on a network share. Its core strength lies in the use of AES‑256 encryption, which is widely regarded as one of the most secure symmetric algorithms available today.

Because the encryption happens on the client side, your data is never exposed to the storage provider in plain text. Duplicati also supports a wide range of back‑end services—including Microsoft OneDrive, Amazon S3, Google Drive, Dropbox, and many others—so you can choose the cloud that best fits your workflow or budget.

The software is cross‑platform, running natively on Windows, macOS, and Linux.

A lightweight web interface gives you full control from any modern browser, whether you’re sitting at your desktop or checking the status from a tablet while traveling. Incremental backups, scheduled runs, and built‑in integrity checks ensure that you always have a reliable, up‑to‑date replica of your most important files without wasting bandwidth or storage space. In short, Duplicati offers a robust, secure, and highly configurable way to keep your data safe—without the price tag of many commercial backup suites.

Key Features That Set Duplicati Apart

• Client‑Side AES‑256 Encryption: All data is encrypted before it leaves your device, guaranteeing privacy even on public cloud services.
• Wide Cloud Compatibility: Native connectors for OneDrive, Google Drive, Amazon S3, Backblaze B2, Azure Blob, and many more.
• Incremental & Scheduled Backups: Only changed portions of files are uploaded, and you can set precise schedules (hourly, daily, weekly, etc.).
• Cross‑Platform Web UI: Manage jobs, view logs, and restore files from any browser on Windows, macOS, Linux, or mobile devices.
• Compression & Deduplication: Reduces storage costs by compressing data and eliminating duplicate blocks.
• Built‑In Integrity Checks: Periodic verification of stored backups to catch corruption early.
• Open‑Source Transparency: Fully audited codebase under the GNU GPL, encouraging community contributions and security reviews.
• Command‑Line Interface (CLI): Automation scripts can invoke Duplicati directly for advanced workflows.

Installation, Configuration, and Compatibility

Installing Duplicati is straightforward on all supported operating systems. For Windows, simply download the installer (.exe) from the official site and follow the wizard; a single click installs the service, the web interface, and creates a start‑menu shortcut. macOS users can use the Homebrew package (brew install --cask duplicati) or download the .dmg file, which installs the application bundle and launches the web UI automatically. Linux enthusiasts have several options: a native .deb/.rpm package for Debian‑based or Red Hat‑based distributions, a Docker image for containerised deployments, or a simple apt-get install duplicati command on Ubuntu‑derived systems.

Once installed, Duplicati runs as a background service and opens a local web server (by default on http://localhost:8200). The first time you access the interface, you’ll be guided through a “wizard” that helps you create a new backup job. You’ll select the source folders, choose a destination (cloud provider, FTP, SSH, or a local network share), and set encryption passwords.

The UI also lets you configure advanced options such as retention policies, bandwidth limits, and custom scripts that run before or after each backup.

Supported operating systems: Windows 10/11 (64‑bit), Windows Server 2016‑2022, macOS 10.14 and newer, Ubuntu 20.04 LTS and later, Debian, Fedora, CentOS, openSUSE, and any Linux distribution that can run the .NET Core runtime. Mobile access is achieved through the responsive web UI, so iOS and Android users can monitor jobs from their phones without installing a separate app.

Pros, Cons, and Frequently Asked Questions

Pros & Cons

• Pros
• Free, open‑source, and no hidden fees.
• Strong client‑side encryption (AES‑256).
• Supports virtually any cloud storage provider.
• Incremental backups save bandwidth and storage.
• Cross‑platform web UI works on desktop and mobile browsers.
• Built‑in integrity verification reduces risk of silent data loss.
• Cons
• Initial setup can be intimidating for non‑technical users.
• Web UI may feel basic compared to polished commercial dashboards.
• No native mobile app (relies on browser).
• Performance depends on the chosen cloud provider’s API limits.

FAQ – Your Most Common Duplicati Questions

Duplicati delivers a rare combination of security, flexibility, and zero cost. While the UI could be more polished, the depth of features—especially the client‑side AES‑256 encryption and extensive cloud support—makes it a top choice for anyone serious about protecting data without a subscription.

Final Verdict and How to Get Started

If you’re looking for a reliable backup solution that won’t break the bank, Duplicati checks all the boxes. Its open‑source nature ensures continuous improvements, while the strong encryption model keeps your files safe from prying eyes. The ability to target virtually any cloud storage provider gives you freedom to choose the most cost‑effective or region‑specific service for your needs.

Although the initial configuration may require a bit of learning, the long‑term payoff—automated, encrypted, and verified backups—is well worth the effort.

Ready to protect your data? Download Duplicati now, run the quick setup wizard, and schedule your first backup in minutes.

With regular integrity checks and incremental uploads, you can rest easy knowing that every important file on your Windows, macOS, or Linux machine is securely duplicated and ready for recovery whenever you need it.