---
title: Backblaze B2
slug: backblaze-b2
url: "https://toolweight.com/options/backblaze-b2"
homepage: "https://www.backblaze.com/cloud-storage"
categories: s3-compatible-storage
last_verified: 2026-07-23
license: CC-BY-4.0
---

# Backblaze B2

> Cheap US and EU object storage with free egress up to three times stored volume.

B2 is the storage half of a company that made its name on consumer backup, and it prices accordingly: USD 6.95 per terabyte per month with Class A, B and C API calls all free on pay-as-you-go, so uploads, downloads and listings cost nothing per request. Egress is free up to three times your stored data and USD 0.01/GB after that, and transfer to Cloudflare and Fastly is free under the Bandwidth Alliance. There is no Australian region, the nearest locations are US West and Amsterdam.

## Identity

|  |  |
| --- | --- |
| Name | Backblaze B2 |
| Company | Backblaze |
| One-liner | Cheap US and EU object storage with free egress up to three times stored volume. |
| Site | https://www.backblaze.com/cloud-storage |
| Docs | https://www.backblaze.com/docs/cloud-storage |
| Founded | 2007 |
| Brand | https://toolweight.com/vendors/Backblaze |
| Compared in | 1 |

## Where it is compared

### [S3-compatible storage](https://toolweight.com/compare/s3-compatible-storage)
Ranked **#4 of 12** on default weights.
| Field | Value | Confidence | Verified | Source | Note |
| --- | --- | --- | --- | --- | --- |
| True cost /mo (USD) | $26.95 /mo | Inferred | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | Storage 1 TB x $6.95 = $6.95. Free egress allowance is 3x stored = 3 TB, so 2,000 GB billable x $0.01 = $20.00. Requests $0.00: B2 now makes Class A, B and C calls free on pay-as-you-go, which covers all 10 M of this scenario's uploads, downloads and listings. Total $26.95. Serving through Cloudflare instead would zero the $20 under the Bandwidth Alliance, leaving $6.95. |
| True cost /mo (AUD) | A$40.96 /mo | Inferred | 2026-07-23 | - | $26.95 x 1.52. |
| True cost from Sydney (AUD) | - | Unknown | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-data-regions | Not priceable from Australia at any figure: B2's regions are US West, US East and Amsterdam, so there is no Australian or Oceania location to serve this scenario from. Null here is a statement about geography, not about our research. |
| Storage $/TB/mo | $6.95 /TB/mo | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | $6.95/TB/month pay-as-you-go. This page previously carried $6.00, which is the older rate. |
| Egress $/TB | $10 /TB | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | $0.01/GB, but only after a free allowance of three times your average stored volume. Transfer to Cloudflare and Fastly is free under the Bandwidth Alliance regardless of volume. |
| Egress cap (x stored) | 3 x stored | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | Egress is free up to three times your average monthly stored data, then billed at $0.01/GB. Unlike Wasabi and iDrive, exceeding it produces an invoice rather than an account review, which is why this row has a computable total and theirs do not. |
| Class A $/M ops | $0 /M ops | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | Class A, B and C API calls are all free for pay-as-you-go customers, so uploads, downloads and listings alike cost nothing per request. The only metered transactions left are Class D, outbound event-notification callbacks, at $0.004 per 10,000 beyond 2,500 a day, which this scenario does not generate. |
| Class B $/M ops | $0 /M ops | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/transaction-pricing | Free. This cell previously carried $0.40 per million from the old Class B rate, which no longer applies on pay-as-you-go. |
| Min retention | 0 ms | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | - |
| Min billed object | 0 B | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/pricing | - |
| S3 API coverage | 85 % | Inferred | - | - | The S3-compatible endpoint covers CRUD, multipart, presigned URLs, versioning, lifecycle and object lock. The native B2 API remains the fuller surface. |
| Presigned URLs | ● | Inferred | - | - | - |
| Multipart upload | ● | Inferred | - | - | - |
| Versioning | ● | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-file-versions | Versioning is on by default, which surprises people migrating from S3, lifecycle rules are how you stop paying for old versions. |
| Lifecycle rules | ● | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-lifecycle-rules | - |
| Event notifications | ● | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-event-notifications | Backblaze's own event notification format to a webhook, not S3 event JSON. |
| CDN integration | partner | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/cloud-storage/integrations/cloudflare | Bandwidth Alliance: free origin egress to Cloudflare and Fastly, which effectively zeroes bandwidth if you already run one of those. |
| Max object size | 9.1 TB | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-large-files | 10 TB, above the S3-inherited 5 TiB ceiling most providers stop at. |
| IAM granularity | 3 | Inferred | - | - | Application keys scoped to a bucket and optionally a name prefix, with a fixed capability list and optional expiry. |
| Sydney region | ○ | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-data-regions | Regions are US West, US East and Amsterdam. Nothing in APAC. |
| TTFB from Sydney | 180 ms | Inferred | - | - | US West to Sydney is a transpacific round trip; 160-200 ms is typical for an uncached small-object GET. |
| Durability (nines) | 11  nines | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/blog/cloud-storage-durability/ | - |
| Uptime SLA | 99.9 % | Inferred | - | - | Credit-backed SLAs are published for B2 Reserve; the pay-as-you-go tier's commitment is weaker. |
| Object lock / WORM | ● | Vendor-claimed | 2026-07-23 | https://www.backblaze.com/docs/cloud-storage-object-lock | - |
| Replication model | single-az | Inferred | - | - | One region per bucket. Cross-region cloud replication exists but is a separate, separately billed feature. |
| Official MCP server | ○ | Inferred | - | - | - |
| GA year | 2,015 | Inferred | - | - | - |
| Positioning | Commodity bulk storage for backup targets and media archives. | Inferred | - | - | - |

**Verdict.** The sensible middle: cheap, boring, feature-complete enough, and the Bandwidth Alliance makes egress free outright if Cloudflare or Fastly is already in your stack. The absence of any APAC region is the single reason to rule it out for Australian workloads.

## Alternatives

- [AWS S3](https://toolweight.com/options/aws-s3), The API everything else copies, and by far the most expensive egress in this roster.
- [Bunny Storage](https://toolweight.com/options/bunny-storage), Edge storage built as a CDN origin, with its own API rather than a faithful S3 one.
- [Cloudflare R2](https://toolweight.com/options/cloudflare-r2), S3-compatible object storage with zero egress fees, on Cloudflare's network.
- [DigitalOcean Spaces](https://toolweight.com/options/digitalocean-spaces), Bundled object storage plus free CDN, priced as a flat base fee with overages.
- [Hetzner Object Storage](https://toolweight.com/options/hetzner-object-storage), The cheapest credible S3 endpoint in Europe, with a deliberately thin feature set.
- [iDrive e2](https://toolweight.com/options/idrive-e2), USD 4/TB S3-compatible storage with zero-egress marketing and a fair-use cap.
- [MinIO](https://toolweight.com/options/minio), The self-hosted S3 reference implementation, your hardware, your bandwidth, your SLA.
- [Scaleway Object Storage](https://toolweight.com/options/scaleway-object-storage), European-sovereign S3 storage with multi-AZ classes and a real IAM system.
- [Storj](https://toolweight.com/options/storj), Decentralised erasure-coded storage: USD 4/TB stored, USD 7/TB egress, no regions.
- [Tigris](https://toolweight.com/options/tigris), Globally distributed S3-compatible storage that caches objects near readers.
- [Wasabi](https://toolweight.com/options/wasabi), Flat-rate hot storage with no egress or API fees, bounded by a fair-use cap.

## Licence and attribution

Data from toolweight (https://toolweight.com), licensed CC-BY-4.0.

- Licence: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)
- Canonical HTML: https://toolweight.com/options/backblaze-b2
- Machine-readable: https://toolweight.com/options/backblaze-b2.md · https://toolweight.com/api/v1 · https://toolweight.com/mcp
- toolweight takes no affiliate revenue and sells no placements. Corrections: https://toolweight.com/suggest