How to Switch from Wasabi to Backblaze B2
· 3 min read · Updated
Wasabi and Backblaze B2 both sell themselves as low-cost, S3-compatible alternatives to AWS S3. Their pricing rules differ, and those differences are why people switch from one to the other.
Wasabi charges $7.99/TB/month (since July 1, 2026) with no egress fees, under these conditions:
- There is a 90-day minimum retention: if you delete or overwrite a file within 90 days, you still pay for the full 90 days of storage.
- Egress is free under fair use: your monthly egress cannot exceed your stored data. If you store 1 TB and download 1.5 TB in a month, Wasabi may contact you about their "reasonable use" policy.
- Wasabi has no CDN bandwidth alliance partnerships like the one Backblaze has.
Backblaze B2 charges $6.95/TB/month for storage and $0.01/GB for egress, with these terms:
- Egress from B2 to Cloudflare is free through the Bandwidth Alliance. If you use Cloudflare as your CDN (many do), egress is effectively $0.
- There is no minimum retention, so you can store and delete whenever you want.
- Each month includes free egress of 3x your storage amount. Store 1 TB and you get 3 TB of free downloads.
For most use cases, Backblaze B2 costs the same as Wasabi or less, with fewer restrictions.
Wasabi and Backblaze B2 both speak the S3 protocol, so the move in Blober is a plain copy. The files pass through your computer on their way from Wasabi to B2.
- Add Wasabi as a provider with your Access Key, Secret Key, and region. Wasabi uses region-specific endpoints like
s3.us-east-1.wasabisys.com. - Add Backblaze B2 with your Application Key ID and Application Key.
- Create a workflow with Wasabi as the source and B2 as the destination, then browse your Wasabi buckets and select what to move.
- Run it. Blober resumes automatically after an interruption.
Backblaze B2 buckets can be in different regions, and Blober finds the region of each one for you. On the Wasabi side, you choose the region.
When you leave Wasabi, remember its 90-day minimum retention. Files you uploaded to Wasabi less than 90 days ago are billed for the full 90 days, even after you delete them.
A practical order:
- Transfer everything to Backblaze B2.
- Wait until the newest files in Wasabi pass the 90-day mark.
- Delete the data and close the Wasabi account.
That way you don't pay both Wasabi and B2 for the same data longer than necessary.
| Wasabi | Backblaze B2 | |
|---|---|---|
| Storage per TB/mo | $7.99 | $6.95 |
| Egress per GB | $0 (with conditions) | $0.01 (free via Cloudflare) |
| Min retention | 90 days | None |
| Free egress allowance | Equal to storage | 3x storage |
| CDN partnership | None | Cloudflare Bandwidth Alliance |
Is Backblaze B2 cheaper than Wasabi? For most use cases. B2 storage costs $6.95/TB/month against Wasabi's $7.99, and B2 has no minimum retention. B2 bills $0.01/GB for egress beyond 3x your stored data, but egress to Cloudflare is free.
What happens if I delete files from Wasabi before 90 days? You still pay for the full 90 days of storage. The same applies to files you overwrite within 90 days.
Is Wasabi egress really free? Yes, as long as your monthly egress does not exceed your stored data. Download 1.5 TB in a month with 1 TB stored and Wasabi may contact you about their "reasonable use" policy.
Do I have to tell Blober which region each B2 bucket is in? No. Blober finds each bucket's region for you.