

BackBlaze
103 likes
Pioneering scalable cloud backup offers unlimited data protection and application storage with S3 compatibility, ensuring seamless data recovery and privacy compliance, backed by 24/7 support at one-fifth the cost of traditional solutions.
License model
- Paid • Proprietary
Application types
Country of Origin
United States
Platforms
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
Features
BackBlaze News & Activities
Highlights All activities
Recent News
- POX published news article about BackBlazeBackblaze announces pricing changes and product upgrades for B2 Cloud Storage and Computer Backup services
Backblaze, the well-known online backup application and cloud storage service, has recently announc...
Recent activities
- Fla updated BackBlaze
- iav added S3 compatible as a feature to BackBlaze
- POX added BackBlaze as alternative to Voltaserve
- OpenSourceSoftware added BackBlaze as alternative to Restic Robot
- namdx1987 liked BackBlaze
- UniqueGo added BackBlaze as alternative to Total Drive
BackBlaze information
AlternativeTo Categories
Backup & Sync, Security & Privacy, File SharingApple AppStore
- Updated Mar 4, 2025
- 2.78 avg rating
Comments and Reviews
Wirecutter recommends Backblaze in the guide "The Best Online Cloud Backup Service."
https://www.nytimes.com/wirecutter/reviews/best-online-backup-service/#our-pick-backblaze
Long story short: for all of Backblaze's marketing talk about security and end-to-end encryption, that is only the case if you never need to restore anything from your backup! Which is, of course, not the point of doing backups.
The idea behind end-to-end encryption is this: you use a private key to encrypt your files locally, before sending them to Backblaze servers. They only ever store the encrypted data, and, since they don't know your private key, have no reasonable way to decrypt it – neither would any malicious attacker that in some way or another gains access to your backups. If you request back your files, you get the encrypted version, that only you can decrypt again with your private key, which is supposed to never leave your computer and control. Never sharing your private encryption key with anyone is the whole point of end-to-end encryption.
Backblaze pretends to uphold this while backing up your data. You enter your private key in the client, your data is encrypted locally before transmission. That is, as long as you trust that that's really what their closed-source client is doing behind the scenes.
I have been happy with this – until I actually needed to restore files from a hard drive that died. In short: there doesn't seem to be a way to restore your files without first sending your private encryption key to Backblaze, letting them decrypt your data on their servers, and send the restore to you. Backblaze claim to have years of experience in implementing security. And then they do that! Sharing your private key with anyone is the absolute biggest "no-no" in information security. It should never, ever be done. But this is exactly what Backblaze requires you to do if you want to retrieve your backed up files.
You have the option of either downloading a backup as a ZIP file, or having it delievered to you on a USB drive or hard disk. In the ZIP method, you request your backup through the web interface. You supply your private key, select what to restore, then wait for Backblaze to prepare an unencryped, not even password-protected, ZIP archive of your files on their servers for you to download. If you choose the USB method, you still have to supply your private key. They will decrypt your data, and actually re-encrypt it on the USB drive for some semblance of security in transit of the drive to you, but it will be with a separate encryption key that is displayed to you in your account. Hence, Backblaze still handles your data on their servers in unencryped form.
All of this turns the entire concept of end-to-end encryption into a fake, a completely pointless exercise. Because you'll have to undo the entire security effort the moment you want to get back any of your files. And why would you set up a backup solution if you never intended to retrieve any files from it?
This may sound harsh, and since I don't store any really sensitive data with them I'm kind of fine with still using their service – the price is good, the servers fast, the client nice. But I really hope they'll step up their game and actually follow through on their promises of security and encryption. Looking at their marketing talk on the website now, it all seems like one big lie. I believed in the lie for more than two years, because only when you get to the point of needing to restore files, you realise that none of it was true.
If you care about encryption, CrashPlan is probably the better choice for now. Their servers may be slower, their client harder to use, and generally less stable and performant (Java! Ugh! Who still uses Java for productive software?) but they seem more concerned about letting actions and processes follow their promises. Technically, you still need to trust a closed-source client, so for the really security-aware it's still not an option. But their solution seems much clearer and thought-through. For reference and comparison, here are CrashPlan's promises on private key encryption: "Encryption key exists only on source computer. Your custom key is never cached at any remote location. The custom key is held in memory for the purpose of restoring files; it is never written to disk. The custom key is flushed from memory once files are restored."
All of these promises are fundamental for encryption to make any sense at all. Backblaze breaks all of them. If CrashPlan at some point does the switch to a native client, which they've promised for many years now, Backblaze will have a very tough stand. And if they actually made their client open-source to make independent security audits possible, that would pretty much enable them to beat all of their competitors. Let's see how things develop on both sides.
[Edited by Anamon, January 07 2018]
I really appreciate your review highlighting Backblaze's security practices. Are there any better alternatives in the current year?
@ImNotARobot: Unfortunately not that I know of. Despite my two-star review, I'm still a customer and have my private backups there. I keep checking out the competition occasionally, but the value-for-money with Backblaze is still so good that for now I just put up with the fact that their encryption concept is a joke. For my personal backup, I can live with it, until someone comes along that does it right, for a similar price. I stand by my two-star rating, despite the fact that I really like the company (nice people, great support), because it's such a fundamental (and unnecessary) technical flaw and borderline false advertising. But all the competitor's I've tried so far are getting stuff wrong that would get them a one-star rating from me.
Thanks for the review. I'd like to ask you a few question about encryption in Blackblaze - particularly doesn't the manual encryption of the backups solve the problem? Like encrypting the backups with cryptomator/veracrypt/password protected 7zip etc before uploading them to Blackblaze. Even with the 'sending your private key to Blackblaze' issue your backup files still keep being manually encrypted, doesn't it? Or do they require even the password of your, say, password protected 7zip file? Well in that case that's completely unaccepted ofcourse. Thanks in advance for your reply. Best regards
Hi @altmltky, thanks for the question. If you separately encrypt the files that you back up with Backblaze, then that should be safe (unless you also back up the key along with everything else, of course ;)). Backblaze itself doesn't care what you back up, it just funnels the files up to their servers with their additional encryption on top.
My issue is only with their marketing, which implies that their backups are securely encrypted by default, which isn't really true. To have actual end-to-end encryption, you'd have to add manual steps like the ones you suggest. I'm personally too lazy and/or nonchalant about my data privacy to do it, though :D and I still stick with Backblaze despite everything, because of their great value for money. I just wanted to warn people against a false sense of security.
Also, an update to my review: since I wrote it, CrashPlan has discontinued their unlimited offer for personal use (in late 2018, I think). So that alternative isn't around anymore. I'm currently unaware of any other service besides Backblaze which offers truly unlimited (also in terms of the types of files you can back up) cloud backup for home users.
Good pricing with bad interfaces (web and app), but that's not the focus of the service.
I recommend Backblaze to colleagues, friends, and family. Not only is it inexpensive, but it's also easy to use. I use it for work, and it's excellent!
Cheap and unlimited online backup for computer. Allow access-backed up files from phone and website. Option to buy hard drive filled with backed up files and shipped it to you to skip downloading files yourself. The downside is that they do not back up folders that belongs to apps installation, so all those settings and configuration files won't be backed up by them. They also won't backup files they claim are "typically non-user data" such as .ISO files, so all those digital CDs & DVDs images/copy won't be backed up too. These are one of the few fine prints for their "unlimited" claim.
The file type exclusions are defaults, but you can change them in settings if you do explicitly want them backed up. This was actually my reason for dropping CrashPlan, who introduced a lengthy list of default exclusions last year. The reason why I use a cloud backup service is because I don't want to have to worry and micromanage my backups. I'm not in the mood to permanently check if some obscure application I use happens to save my user data in files with an .rbf or .tib extension! And file extensions are an extremely poor way to identify file types, anyway. All file extension and file size exclusions in Backblaze can be removed so that everything is backed up. The only fixed exclusions that you can't remove are the default folders you mentioned (default locations for Windows installation, recycle bin, program files, installation caches, etc.). The list is available here: https://help.backblaze.com/hc/en-us/articles/217664948-How-do-I-exclude-folders-file-types-or-file-sizes- Current-day Windows applications store their configuration in user directories, so those should still be backed up.
Great prices and great service.
For storing data they're pretty not bad. https://www.backblaze.com/b2/cloud-storage-pricing.html
1TB = 5$ / mo. But you can use smaller amounts of data. For example for regular backups whole WordPress database and site, I need around 40GB (by last 3 years of using the service) and my price tag is 1.2$ yearly.
Is it cheaper for me to store data somewhere else? No, I do not think so. 120 cents for 40GB of data per YEAR, I do not think, that I can find something cheaper.
But here is a big BUT! If I wanna to download all of my data or restore frequently from my b2 storage, my bills will be next:
As you see, a price for downloading backups 3x more then a price for storing data. I realized it, when I tried to take all my backups from them (which is not easy to do, if you wanna download whole bucket). And I realized that I must to pay them some money ( I have backups of several terrabytes also there too).
Here is example:
As you see on the image above, if I willing to download all my data, I will forced to pay them 51$ Instead of 17$. Imagine that you have not 3TB but for example 10TB of data.
Summary: I have NOTHING against this service, I just wish to warn people about this service, that there are not really hidden costs, but what to expect. If you back up a lot of your data and store it online, it's great. But if you need access to your files and download them - it's not really cost effective.
Much cheaper will be to use any cloud storage.
For example something like sync, or any other alternative.