Duplicati – Free Backup Software

Duplicati is a free, open-source backup client that securely stores encrypted, incremental, compressed backups on cloud storage services and remote file servers. It works with standard protocols like FTP, SSH, and WebDAV, as well as popular services like Backblaze B2, Amazon S3, Google Drive, OneDrive, and many others. The web-based interface makes configuration simple.

Key Features

• Web Interface – Easy-to-use browser-based configuration
• Cloud Support – 20+ cloud storage backends supported
• Encryption – AES-256 encryption before upload
• Incremental Backups – Only changed data is uploaded
• Scheduling – Automated backup schedules
• Email Notifications – Get notified of backup status

Installation

# Debian/Ubuntu
wget https://updates.duplicati.com/beta/duplicati_2.0.7.1-1_all.deb
sudo dpkg -i duplicati_2.0.7.1-1_all.deb
sudo apt -f install

# RHEL/CentOS/Fedora
wget https://updates.duplicati.com/beta/duplicati-2.0.7.1-2.0.7.1_beta_20230403.noarch.rpm
sudo dnf install duplicati-*.rpm

# Start service
sudo systemctl start duplicati
sudo systemctl enable duplicati

Configuration

# Access web interface
# http://localhost:8200

# Command line backup
duplicati-cli backup "file:///backup/path" "/home/user" --passphrase="secret"

# Backup to S3
duplicati-cli backup "s3://bucket-name" "/data" \
  --aws-access-key-id=KEY --aws-secret-access-key=SECRET

Use Cases

Duplicati is ideal for home users, small businesses, cloud backup strategies, scheduled automated backups, and cross-platform backup solutions.

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