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Backblaze B2 pricing and limits

iScore63–74 · ≈#1/9
www.backblaze.com/cloud-storage · Object storage
SEPT 2026 audit

S3-compatible object storage sold per terabyte, with free egress capped at a multiple of stored capacity.

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Free tierYes
CategoryObject storage

Reviewed by Palash BagchiUpdated 17 criteria comparedSources last checked

Backblaze B2 pricing at a glance

What the free plan includes
The first 10 GB of storage is always free, egress is free up to three times average monthly storage, and the first 2,500 Class D… source ↗
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 source ↗

First line of each sourced value. The full text is in Backblaze B2 pricing below.

01.Evaluation guide

Who it suits

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.

Consider something else if…

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.

Editorial · Palash Bagchi · approved

Machine-derived signals

Not sourced facts — counts and matches read by a script, not a person. See each line for where it comes from.

Backblaze B2's own site (backblaze.com) self-detects as: hosting — US hosting, Cloud Hosting, Cloud PaaS, Server Location, Australian hosting · CDN — Edge Delivery Network · DNS — TLD Redirects (category-level via BuiltWith, not a named vendor)

Each value below links to the page it was read from, with the sentence it came from. Criteria Backblaze B2 does not publish are not listed.

Backblaze B2 pricing

4 criteria
Free tierYes
Sources (1) →
Kind of free offerFree tier
Sources (1) →
What the free plan includesThe first 10 GB of storage is always free, egress is free up to three times average monthly storage, and the first 2,500 Class D transactions each day are free.
Sources (1) →
Egress over allowanceFree 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.
Sources (1) →

Limits

1 criteria
Storage (entry plan)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.
Sources (1) →

Infrastructure

1 criteria
Uptime SLACredits begin below 99.9% monthly user uptime. The SLA is per user account and covers B2 Cloud Storage and Computer Backup.
Sources (1) →

Storage

4 criteria
Storage price$6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier
Sources (1) →
Operations priceTransactions 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.
Sources (1) →
Minimum storage durationNone. 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.
Sources (1) →
S3-compatible APISupported
Sources (1) →

Support

2 criteria
Support on entry paid planGiga support with every subscription. Tera and Peta are paid add-ons bought per service.
Sources (1) →
  • Backblaze Customer Support Plans ↗

    “all backblaze computer backup and backblaze b2 cloud storage customers receive giga support as part of their subscription and can add on our tera or peta support plans for each service.”

    Read 2026-09-14 · official site · Report a correction

Response time commitmentTarget response for email support: one business day on Giga, the included plan; 4 business hours on Tera; 2 business hours on Peta. Email support runs 9am to 5pm Pacific.
Sources (1) →

Compliance

5 criteria
SOC 2SOC 2 Type 2 compliant, audited by an independent third-party firm; the data centers Backblaze operates in are also SOC 2 compliant.
Sources (1) →
ISO 27001Not 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.
Sources (1) →
HIPAAA Business Associate Agreement is available on request for business customers who are Covered Entities under HIPAA.
Sources (1) →
GDPR / data residencyAdheres to GDPR and UK GDPR privacy policies; Data Processing Agreement addendums are available for EEA/EU and UK residents.
Sources (1) →
PCI DSSCard 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.
Sources (1) →

When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.

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Backblaze B2 in the news

Headlines from other publications, not checked by us · collected

Selected by a search on this company, refreshed weekly. Nobody here has verified these claims — where something material is confirmed, it is written into the page above with its source, the way every other fact on this site is.

Backblaze B2 pricing questions

Does Backblaze B2 have a free tier?

Yes. The first 10 GB of storage is always free, egress is free up to three times average monthly storage, and the first 2,500 Class D transactions each day are free.

Backblaze B2 Cloud Storage Pricing · read

How much does Backblaze B2 charge for egress?

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.

Cloud Storage Pricing — Backblaze · read

What uptime does Backblaze B2 guarantee?

Credits begin below 99.9% monthly user uptime. The SLA is per user account and covers B2 Cloud Storage and Computer Backup.

Backblaze Service Level Agreement · read

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Comments

Every page here is sourced and dated.