# Backblaze B2 vs Bunny Storage

Canonical: https://inetgeek.com/compare/backblaze-b2-vs-bunny-storage/

Every value below is read from Backblaze B2's and Bunny Storage's own documentation. See https://inetgeek.com/methodology/ for how.

## At a glance

| Criterion | Backblaze B2 | Bunny Storage |
| --- | --- | --- |
| Egress over allowance | Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable. | Free to Bunny's own CDN, and no API fees or API egress charges. Bunny prices storage by replication rather than by transfer. |
| Storage price | $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier | $0.01 per GB per month on Standard HDD for up to two regions, then $0.005 per additional region up to nine. Edge SSD is $0.02 per GB per region across up to fifteen. Three regions on Standard is $0.025 per GB. |
| Operations price | Transactions are not charged on the $6.95/TB tier. Backblaze notes that its published chart uses U.S. West rates and that competitor rates vary by region and volume. | None. Bunny states no API fees. |

## Where they differ

### Egress over allowance

- Backblaze B2: Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable. ([source](https://www.backblaze.com/cloud-storage/pricing))
- Bunny Storage: Free to Bunny's own CDN, and no API fees or API egress charges. Bunny prices storage by replication rather than by transfer. ([source](https://bunny.net/storage/))

### Storage price

- Backblaze B2: $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier ([source](https://www.backblaze.com/cloud-storage/pricing))
- Bunny Storage: $0.01 per GB per month on Standard HDD for up to two regions, then $0.005 per additional region up to nine. Edge SSD is $0.02 per GB per region across up to fifteen. Three regions on Standard is $0.025 per GB. ([source](https://bunny.net/storage/))

### Operations price

- Backblaze B2: Transactions are not charged on the $6.95/TB tier. Backblaze notes that its published chart uses U.S. West rates and that competitor rates vary by region and volume. ([source](https://www.backblaze.com/cloud-storage/pricing))
- Bunny Storage: None. Bunny states no API fees. ([source](https://bunny.net/storage/))

## Which should you choose?

Pick Backblaze B2 if Bulk capacity where egress is predictable — free up to three times what you store each month, which covers most backup and archive patterns comfortably at $6.95 per terabyte.

Pick Bunny Storage if Assets served from a CDN, where paying per replicated region buys latency you would otherwise build yourself — and traffic to Bunny's CDN costs nothing.

Consider something else: Backblaze B2 — Egress is only free to that 3x ceiling. A bucket read far more often than its size, like a public media library, is the shape this pricing is not built for.

Consider something else: Bunny Storage — Replication is the price axis, so multi-region storage costs a multiple of single-region rather than a premium, and it is a CDN origin rather than a general-purpose S3 endpoint.

## Documented by only one

- Free tier: Backblaze B2: Yes
- Pricing model: Bunny Storage: Per region rather than per gigabyte alone: replication is the price axis, so cost scales with how many of Bunny's regions hold a copy. True pay-as-you-go with a $1 monthly minimum and no commitments.
- Storage (entry plan): Backblaze B2: 10 GB free, permanently — 'First 10GB storage is always free.' The statement is a row-level note on Backblaze's pricing-model table, so it applies to B2 storage rather than to one plan, and it is an ongoing allowance rather than the 'Start Free' trial the page advertises separately.
- Minimum storage duration: Backblaze B2: None. Backblaze states no minimum file size or storage duration fee on B2 Cloud Storage, so an object deleted an hour after upload is billed only for that hour.
- S3-compatible API: Backblaze B2: Supported
- SOC 2: Backblaze B2: SOC 2 Type 2 compliant, audited by an independent third-party firm; the data centers Backblaze operates in are also SOC 2 compliant.
- ISO 27001: Backblaze B2: Not a Backblaze organizational certification — Backblaze states it primarily operates in data centers that hold ISO 27001 certificates, a facility-level attestation rather than one covering Backblaze itself.
- HIPAA: Backblaze B2: A Business Associate Agreement is available on request for business customers who are Covered Entities under HIPAA.
- GDPR / data residency: Backblaze B2: Adheres to GDPR and UK GDPR privacy policies; Data Processing Agreement addendums are available for EEA/EU and UK residents.
- PCI DSS: Backblaze B2: Card processing is handled through Stripe, which combined with Backblaze's internal security controls contributes to PCI-DSS adherence — not a direct PCI-DSS certification of Backblaze's own storage platform.

## Questions this comparison answers

**Egress over allowance: Backblaze B2 or Bunny Storage?**

Backblaze B2: Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable.
Bunny Storage: Free to Bunny's own CDN, and no API fees or API egress charges. Bunny prices storage by replication rather than by transfer.

**Should I choose Backblaze B2 or Bunny Storage?**

Pick Backblaze B2 if Bulk capacity where egress is predictable — free up to three times what you store each month, which covers most backup and archive patterns comfortably at $6.95 per terabyte.
Pick Bunny Storage if Assets served from a CDN, where paying per replicated region buys latency you would otherwise build yourself — and traffic to Bunny's CDN costs nothing.