Backblaze B2: verified facts and rating
Checked 2026-11-04
Score breakdown
95% backed by facts · How we rank
Backblaze B2 against the market
The dot is the company, the line is the median of all companies in this ranking.
Storage price per GB-month (standard class)$0.006$0.023$0.00695 · median $0.01463
Egress price per GB (to the internet)$0.00$0.11176$0.01 · median $0.00816
Uptime SLA99.9%99.95%99.9% · median 99.9%
Backblaze B2 strengths and weaknesses
Pros
- Free or cheap egress
- Object Lock for immutable backups
- Independently audited security
- High uptime in a published SLA
Cons
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All facts
| Fact | Value | Source | Checked |
|---|---|---|---|
| Storage price per GB-month (standard class) | $0.00695 | B2 Cloud Storage | $6.95 / TB / month | Free up to 3x average monthly storage | None. Pay as you go, or commit 1 to 5 years | | backblaze.com | 2026-11-04 |
| Egress price per GB (to the internet) | $0.01 Overage rate: $0.01 per GB beyond the free allowance. | backblaze.com | 2026-11-04 |
| Permanent free tier | Yes First 10 GB of storage is always free. | backblaze.com | 2026-11-04 |
| Minimum storage duration | 0 days No minimum storage duration fee. | backblaze.com | 2026-11-04 |
| S3 API compatible | Yes Backblaze B2 Cloud Storage is always-hot, S3-compatible object storage | backblaze.com | 2026-11-04 |
| Regions (provider's count) | 4 you choose whether that account’s data is stored in the US East region, the US West region, the EU Central region, or the Canada East region. | backblaze.com | 2026-11-04 |
| Object versioning | Yes Each bucket has a set of lifecycle rules that instruct Backblaze B2 to hide or delete old versions of files. | backblaze.com | 2026-11-04 |
| Lifecycle rules | Yes Each bucket has a set of lifecycle rules that instruct Backblaze B2 to hide or delete old versions of files. | backblaze.com | 2026-11-04 |
| Object Lock (immutable storage) | Yes Backblaze B2 Cloud Storage Object Lock lets you make data immutable by preventing a file from being changed or deleted until a given date | backblaze.com | 2026-11-04 |
| Encryption at rest | Yes Server-side encryption (SSE) protects your data by encrypting it before it is stored on disk to B2 Cloud Storage. | backblaze.com | 2026-11-04 |
| SOC 2 or ISO 27001 | Yes Backblaze has achieved Service Organization Control (SOC) 2 Type 2 compliance by an independent third-party firm. | backblaze.com | 2026-11-04 |
| Uptime SLA | 99.9% Backblaze agrees to meet or exceed a Service Level Objective (“SLO”) of 99.9% for the Monthly User Uptime Percentage. | backblaze.com | 2026-11-04 |
| Public status page | Not verified | — | |
| Founded | 2007 Gleb Budman is a co-founder and has served as our chief executive officer since 2007, guiding the business from its inception | backblaze.com | 2026-11-04 |
| Company headquarters | Not verified | — | |
| Company | Backblaze, Inc. This Service Level Agreement ("SLA") is between Backblaze, Inc. ("Backblaze") and users of our services | backblaze.com | 2026-11-04 |
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