bimbashrestha

Good catch. But the SHA hash is salted per backup destination though. So you can't figure out the content from the hash alone.

EDIT: I should make note of that on the docs page really. It currently gives the impression that I'm just straight up calculating the sha of the content.

Or maybe I'm confused about your question haha.

Do you simply mean is it possible to restore backups to local? Or a reverse backup operation from cloud to local?

It uses a custom algorithm and data format but uses a similar deduplication technique to restic. There is bit of info in the docs page about this [1].

[1]: https://blobbackup.com/docs.php#data-format

Thanks!

Its built in a combination of C and python. Using zstandard for compression and openssl for crypto. Qt for the GUI.

Ah this isn't supported right now. It wouldn't be terribly difficult to add but it's just never been brought up by users till now.

What is your use case for this?

It's generally faster to backup [1], way faster to restore [1], backups use less space [1], has a native app for each OS and usability (subjective I know but give the two a shot yourself) is better imo.

[1] Benchmark on open data set. https://blobbackup.com/10_gb_benchmark.php

Hey! Thanks for asking. On mobile right now so this isn't comprehensive but a few advantages jump to mind.

1. Compression/deduplication. Your data will (generally speaking) take up about half the space it did before even including the multiple file versions.

2. Automation. You won't have to manually do anything after you configure a schedule once.

3. Management of multiple backups.

4. A really nice native GUI

5. All the advantages that backup with file versioning has over sync (which is what it looks like you have). Safe from ransomware (you'll have an older version always even if your infected ones get synced accidentally), projection from human error by being able to revert to older versions, etc

Developer here.

Started this because I was looking for a cross platform backup GUI tool that let me create encrypted incremental snapshots to my NAS and B2 bucket on a schedule. The tools I found (both paid and free) were either clunky to use or didn't have a good engine (block-level deduplication, adjustable compression, encryption, speed, etc).

Here is a quick benchmark I did comparing BlobBackup to Duplicacy, Duplicati, Arq, and QBackup a few days ago. The benchmark doesn't cover all use cases (I'm going to try to do some to different storage destinations when I find time), but it's a decent measure of backup engine efficiency and speed.

https://blobbackup.com/10_gb_benchmark.php

I also put quite a bit of thought into the UI so it's much more usable (subjective I know but try the free version yourself) than the alternatives.