
Restic
Duplicati
FreeFileSync
Duplicacy
rsync
BlinkDisk
Acronis True Image
Fast and Secure Open-Source Backup Software for Windows, Mac, and Linux

Managed Hosting for developers, entrepreneurs, and businesses like yours

Which is more popular?
Based on our record, Kopia seems to be more popular. It has been mentioned 34 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | kopia.io | opalstack.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Kopia yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Kopia and Opalstack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


There are actually really good free backup solutions, like https://kopia.io/. - Source: Hacker News / 3 months ago
Backblaze's B2 storage is fine if used with a separate app over which you have more control. Others here have mentioned Arq. I have used it, as well as Kopia[0] and Blinkdisk[1] (Blinkdisk is essentially Kopia but with a nicer UI). Can... - Source: Hacker News / 5 months ago
Regarding the first two points, maybe Kopia [0] come close. It has both GUI and a CLI. For the GUI, it saves your backup key for you (although I have to admit I didn't check how much securely stored it is), but you still have to keep a... - Source: Hacker News / over 1 year ago
Tracking Opalstack since Sep 2023.
When comparing Kopia and Opalstack, you can also consider the following products.

Easy: Doing backups should be a frictionless process, otherwise you are tempted to skip it.
Compare Restic to Kopia or Opalstack:

Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Compare Duplicati to Kopia or Opalstack:

FreeFileSync is a free open source data backup software that helps you synchronize files and folders on Windows, Linux and macOS.
Compare FreeFileSync to Kopia or Opalstack:

A new generation cross-platform cloud backup tool
Compare Duplicacy to Kopia or Opalstack:

rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
Compare rsync to Kopia or Opalstack:

BlinkDisk is a desktop application that lets you effortlessly backup all your important files with just a few clicks.
Compare BlinkDisk to Kopia or Opalstack: