About
Backblaze B2 Cloud Storage is an S3-compatible object storage service for backup, active archiving, recovery, media workflows, and application data. The pricing page lists pay-as-you-go storage at $6 per TB per month, with free egress up to 3x average monthly storage and no minimum file size or storage duration fees.
The service includes a perpetual free allowance for the first 10 GB of storage, plus free API calls for B2 Reserve customers and limited free API calls for pay-as-you-go customers. It is aimed at developers and infrastructure teams that need object storage with predictable pricing, integration support, and optional annual capacity commitments.
- S3-compatible object storage
- First 10 GB storage free
- Free egress up to 3x storage
- No minimum file size fees
- No minimum storage duration fees
- Pay-as-you-go monthly billing
- Annual capacity billing option
- Free API calls for B2 Reserve
Free Tier Value
The pricing page states that the first 10GB of storage is always free, plus free egress up to 3x average monthly storage and free API calls for Class A/B/C (with Class D only charged beyond the first 2,500/day). Using the cheapest paid storage rate shown ($6.95/TB/mo), 10GB of storage is worth about $0.07/month (10/1024 × 6.95), and the egress/API freebies are usage-dependent so I conservatively value only the guaranteed storage cap. No explicit no-credit-card claim or trial/credit amount appears on the page, so those are null/false.
What's included in the free tier
- First 10GB of storage is always free.
- Free egress up to 3x average monthly storage.
- Egress beyond 3x average monthly storage billed at $0.01 per GB.
- No minimum file size fees.
- No minimum storage duration fees.
- Class A API calls are free.
- Class B and C API calls are free for the first 2,500 per day per class.
See Backblaze B2 Cloud Storage pricing for current limits.
Paid plans
Backblaze B2 Cloud Storage
- storage
- $6.95 per TB per month
- egress
- free up to 3x average monthly storage
- egress_overage
- $0.01 per GB
- API calls
- Class A, B, and C free; Class D $0.004 per 10,000 calls
- free_storage
- first 10GB always free
- Pay as you go monthly or for capacity annually
- No minimum file size or storage duration fees
- Free egress up to 3x storage
- Free transactions
- S3 compatible object storage
Backblaze B2 Overdrive
- storage
- $15 per TB per month
- egress
- unlimited free
- commitment
- multi-petabyte commitment required
- Higher-throughput object storage
- Dedicated vaults with private networking integration
- White glove onboarding and support
- Unlimited free egress
- Built on Backblaze B2 foundation
B2 Reserve
- commitment
- starts at 20TB
- billing_term
- annual from 1-5 years
- Capacity-based cloud storage
- Predictable pricing
- Bundled egress/API transaction fees
- Annual billing
- Invoice payment
Pricing extracted from Backblaze B2 Cloud Storage's pricing page. Always verify current pricing before committing.
