Backblaze B2 vs Storj
SEPT 2026 auditA comparison of Backblaze B2 and Storj built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
Choose 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.
Editorial · Palash Bagchi · approved
Choose Storj if…
Workloads that want data spread across many independent locations rather than one provider's region, at a storage rate close to the cheapest here.
Editorial · Palash Bagchi · approved
Consider something else if…
- 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.
- Storj: Egress is charged at the same $7 per TB as storage, so a read-heavy workload costs roughly double what the storage line suggests — the three free-egress providers here charge nothing for it.
3 sourced criteria separate them — see where, with sources, below.
Pick the criteria you care about. The chart counts how many of them lean toward each provider — the same read as scanning the bars below, just totalled for the ones you chose.
Backblaze B2 0
Storj 0
At a glance.
| Criterion | Backblaze B2 | Storj |
|---|---|---|
| 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. | $7 per TB, the same rate as storage — reduced from $20 per TB on the Standard tier. Storj charges for egress where R2, Wasabi and Tigris do not, but at a tenth of what S3 charges. |
| Storage | ||
| Storage price | $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier | $7 per TB per month, which is $0.007 per GB. A $5 monthly minimum applies to Standard and Advanced accounts. |
| 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. | Segment fees have been eliminated across all new tiers. They still apply to accounts on legacy plans. |
| S3-compatible API | Supported | Supported |
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.
- Storj
- $7 per TB, the same rate as storage — reduced from $20 per TB on the Standard tier. Storj charges for egress where R2, Wasabi and Tigris do not, but at a tenth of what S3 charges.
Sources (2) →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
- Pricing — Storj ↗
“Egress $7/TB [...] to reduce egress on the Standard tier from $20/TB to $7/TB”
Read 2026-09-06 · official pricing
Storage price
- Backblaze B2
- $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier
- Storj
- $7 per TB per month, which is $0.007 per GB. A $5 monthly minimum applies to Standard and Advanced accounts.
Sources (2) →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
- Pricing — Storj ↗
“MONTHLY STORAGE $7/TB Egress $7/TB [...] Minimum monthly fee for Storj Object Storage Standard and Advanced plan accounts is $5.”
Read 2026-09-06 · official pricing
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.
- Storj
- Segment fees have been eliminated across all new tiers. They still apply to accounts on legacy plans.
Sources (2) →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
- Pricing — Storj ↗
“Are segment fees still charged? No. Segment fees have been eliminated across all new tiers. Segment fees still apply for users on legacy plans.”
Read 2026-09-06 · official pricing
When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.
Documented by only one.
These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.
Questions this comparison answers.
Egress over allowance: Backblaze B2 or Storj?
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.
Storj: $7 per TB, the same rate as storage — reduced from $20 per TB on the Standard tier. Storj charges for egress where R2, Wasabi and Tigris do not, but at a tenth of what S3 charges.
Should I choose Backblaze B2 or Storj?
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 Storj if Workloads that want data spread across many independent locations rather than one provider's region, at a storage rate close to the cheapest here.