Backblaze B2
S3-compatible object storage sold per terabyte, with free egress capped at a multiple of stored capacity.
- object storage
- Yes
- Not documented
- Not documented
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
What the documentation says.
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.
Pricing
Free tier
Yes
Sources (1) →Sources ↓
- Cloud Storage Pricing — Backblaze ↗
“Start Free”
Read 2026-09-06 · official pricing
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.
Sources (1) →Sources ↓
- Cloud Storage Pricing — Backblaze ↗
“Free egress up to 3x storage [...] Free transactions [...] Unlimited free egress [...] B2 includes 750 TB of monthly egress in this scenario.”
Read 2026-09-06 · official pricing
Storage
Storage price
$6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier
Sources (1) →Sources ↓
- Cloud Storage Pricing — Backblaze ↗
“$6.95 / TB / mo [...] Free egress up to 3x storage [...] $15 / TB / mo [...] Unlimited free egress”
Read 2026-09-06 · official pricing
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.
Sources (1) →Sources ↓
- Cloud Storage Pricing — Backblaze ↗
“Free transactions [...] This chart features published rates for the U.S. West region. Backblaze competitors' rates can vary by region, amount stored, and other factors.”
Read 2026-09-06 · official pricing
S3-compatible API
Supported
Sources (1) →Sources ↓
- Cloud Storage Pricing — Backblaze ↗
“Enterprise-grade, security & compliance-ready, S3 compatible object storage—at a fraction of the cost.”
Read 2026-09-06 · official site