Can files backed up to Backblaze B2 be downloaded without KopiaCLI or KopiaUI?

Hello, I’m currently setting up KopiaUI together with Backblaze B2 for the first time. Previously I have used B2 to upload files manually and it’s great because I can later download them from 's file browser, for example from my phone.

However when I upload snapshots from KopiaUI I see a lot of random files that I do not recognize in B2. Is it possible to upload files as-is so that I can later download them without having to use Kopia or KopiaUI. Or any other alternative to have my files easily available from a browser? Thanks!

I think you are using the wrong tool for the job…

To get what you described you should look at something like rclone -

Well rclone is also not the right tool for me because I want something with a UI that can run periodically. They had an experimental UI but it’s completely abandoned.

Having a KopiaUI for Android/iOS/webapp would solve my issue.

B2 supports S3 - isn’t it? It means that you can use many GUI S3 browsers available. Free and paid options are plenty. Do your Google.

And use rclone to periodically upload your stuff to the cloud (B2).

For sure kopia is not what you need - based on your requirement.

Anything else does not belong to this forum:)

Yes B2 is S3-compatible.

I already did some hours of googling and couldn’t find any of those “plenty options” you mentioned. As mentioned I want a decent app with a UI that can automatically and periodically sync files to B2/S3, not just a browser, are you sure there is plenty of those? I guess you want to keep them secret!

Regarding my message not belonging to this forum, are you a moderator? I couldn’t find any rule about not being able to freely talk about my matter.

In any case I like KopiaUI so much that I’ll keep using it. There is already KopiaUI for Windows, MacOS and Linux, why not Android and iOS in the future even with only browse/read capabilities? Is that a crazy suggestion that does not belong to this forum also?

It is simple courtesy - if you need help with kopia use Support category, otherwise use General/Off-topic.

Well my original post asks if there are more ways to download files uploaded with KopiaUI, I think it fits well enough with the Support category for Kopia, maybe the title should omit Backblaze B2 as that part now seems to be irrelevant but the question about a potential KopiaUI for mobile remains.

In any case it’s a shame that you are talking about off-topic matters in my post like telling me what I can or cannot talk about without even being a moderator, or mentioning “plenty options” without giving a single example, yet trying to teach me something about “simple courtesy”.

FWIW, it looks like Kopia (CLI) runs under Termux in Android on a Pixel 6 phone, at least enough to run the encryption benchmarks. I didn’t test its ability to connect to a repo. I used kopia-0.15.0-linux-arm64.tar.gz.

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Thanks for that, I didn’t even know about Termux. Using it, I tried:

./kopia repository connect b2 --bucket=xxx --key-id=xxx --key=xxx

And I get:

ERROR can't connect to storage: unable to create client: Get "": dial tcp: lookup on [::1]:53: read udp [::1]:41175->[::1]:53: read: connection refused

I tried with both kopia-0.15.0-linux-arm64.tar.gz and kopia-0.15.0-linux-arm.tar.gz on my Xiaomi Mi 11 Lite 5G and I get the same error. I double checked the same command with the same keys runs successfully on the regular MacOS version.

If anyone can guess different things to try I may be able to dedicate some time to it.

I don’t know anything about Termux, but regarding your original question, the “random” files you see in B2 are encrypted chunks (not sure if chunks is the correct word). Kopia enfonces encryption. AFAIK it can’t be disabled.

As an alternative, you might want to look at Duplicati which has a web-based user interface and (if I recall correctly) doesn’t enforce encryption.