Duplicacy vs Kopia vs BlinkDisk: A Detailed Comparison

Compare Duplicacy, Kopia, and BlinkDisk side by side. See features, pricing, privacy, platforms, storage options, and performance compared.

Duplicacy

Kopia

BlinkDisk

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General

Basic info about each tool.

	Duplicacy	Kopia	BlinkDisk
Open Source	Partially CLI source-available, GUI proprietary	Yes	Yes
Release Year	2016	2019	2025 Built on Kopia, released in 2019
Country of Origin	🇺🇸 United States	No data	🇦🇹 Austria

Platforms

Supported operating systems.

	Duplicacy	Kopia	BlinkDisk
Windows	Supported	Supported	Supported
macOS	Supported	Supported	Supported
Linux	Supported	Supported	Supported
Android	Not supported	Not supported	Not supported
iOS	Not supported	Not supported	Not supported

Pricing

Simple and transparent pricing calculators.

Duplicacy

Personal License

Home computers, backing up personal files only

Computers

$20.00/year

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Kopia

Free

All features included
Only pay for storage

BlinkDisk

Free

All features included
Only pay for storage

CloudBlink

Our optional cloud storage service

$0for 30 days

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Storage

Where you can store your backups.

	Duplicacy	Kopia	BlinkDisk
Managed Cloud Provider's own cloud storage	Not supported	Not supported	Supported CloudBlink
Local Filesystem External drives, USB, etc.	Supported	Supported	Supported
Network Attached Storage Backup to NAS devices	Not supported	Supported	Supported
S3-Compatible Storage AWS S3, Backblaze B2, etc.	Supported	Supported	Supported
SFTP Secure file transfer protocol	Supported	Supported	Supported
WebDAV Web-based file access	Supported	Supported	Supported
Rclone Remotes 50+ cloud providers via Rclone	Not supported	Partially supported Experimental	Partially supported Experimental

Level

What level of backup each tool supports.

	Duplicacy	Kopia	BlinkDisk
File/Folder Backups	Supported	Supported	Supported
Disk Image Backups	Not supported	Not supported	Not supported

Interface

How you interact with each backup tool.

	Duplicacy	Kopia	BlinkDisk
Command Line Interface Can be operated from a terminal or shell	Supported	Supported	Partially supported Via Kopia CLI
Graphical User Interface Provides a desktop app or visual interface	Partially supported GUI is paid	Supported	Supported

Features

Core backup capabilities.

	Duplicacy	Kopia	BlinkDisk
Deduplication Avoids storing duplicate data	Supported	Supported	Supported
Compression Reduces backup size	Supported	Supported	Supported
Version History Access previous file versions	Supported	Supported	Supported
Scheduled Backups Automatic backups on a schedule	Partially supported Web GUI only	Supported	Supported

Privacy

Encryption and data protection.

	Duplicacy	Kopia	BlinkDisk
End-to-End Encryption Encrypted on your device	Supported	Supported	Supported
Zero-Knowledge Provider doesn't hold the keys	Supported	Supported	Supported

Backup Strategies

Which backup methods each tool supports.

	Duplicacy	Kopia	BlinkDisk
Incremental Backups Copies changes since the previous backup	Supported	Supported	Supported
Full Backups Copies all selected data each time	Not supported	Partially supported	Partially supported
Differential Backups Copies changes since the last full backup	Not supported	Partially supported	Partially supported

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