Backblaze
S3-compatible object storage and computer backup for AI, apps and home users
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Pricing
Free · from $6.95/mo
API
Yes
Company
Backblaze
Platforms
What is Backblaze?
Backblaze is a cloud storage company. Its main product is B2 Cloud Storage, which is S3-compatible object storage. It also sells unlimited computer backup for Macs and PCs, for both individuals and businesses.
B2 is always-hot storage starting at $6.95/TB per month. You can pay as you go or commit to an annual capacity term. It has no minimum file size or storage duration fees. Egress is free up to 3x your stored data, and unlimited through partner CDNs and compute providers such as Cloudflare, Fastly, bunny.net and CoreWeave. B2 Overdrive is a premium tier starting at $15/TB per month for throughput-heavy workloads. It offers terabit speeds, dedicated vaults and unlimited free egress, but requires a multi-petabyte commitment.
Backblaze is aimed at AI and GenAI developers, neocloud platforms, application builders, media teams and IT departments that need backup, disaster recovery and immutable ransomware protection. The company is publicly traded under the ticker BLZE.
Key features
- S3-compatible object storage API
- Free egress up to 3x average monthly storage
- Unlimited free egress via partner CDNs and compute
- Immutable backups for ransomware recovery
- White-label B2 for your own platform
- Unlimited Mac and PC computer backup
- Assisted data migration
- Up to 1Tbps throughput with B2 Neo and Overdrive
Use cases
Who it's for
AI training data storage
Store exabyte-scale datasets and move them to GPU environments without paying hyperscaler egress fees.
Application backend storage
Use B2 as a drop-in S3 replacement for app data, with predictable costs.
Backup and disaster recovery
Keep immutable server and system backups offsite for ransomware recovery.
Workstation backup
Back up unlimited data from home or business Macs and PCs automatically.
Backblaze pricing
From the vendor's site, checked Nov 12, 2026. Prices change — confirm on their pricing page.
| Plan | Backblaze B2 | Backblaze B2 Overdrive |
|---|---|---|
| Price | $6.95/TB/mopay as you go or annual capacity | $15/TB/momulti-petabyte commitment required |
| Free egress | Up to 3x storage | Unlimited |
| Also |
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Get an email when Backblaze changes its prices
One mail per change, a stop link in each. Nothing else.
How Backblaze compares
- Backblaze has a free plan, like 2 of the 4 alternatives below.
- It offers an API, which only 1 of the others does.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| BBackblaze | $6.95/mo | — | — | |||
C Cloudflare | $5/mo | — | — | — | Backblaze vs Cloudflare | |
A Akamai | — | — | — | — | Backblaze vs Akamai | |
A Acronis | — | — | — | — | Backblaze vs Acronis | |
I Internxt | $11.99/mo | — | — | Backblaze vs Internxt |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- Starts at $6.95/TB per month, with the first 10GB free
- Free egress up to 3x storage; overage is $0.01/GB
- No minimum file size or storage duration fees
- Class A, B and C API calls are free on pay-as-you-go
Limitations
- Overdrive requires a multi-petabyte commitment
- Implementation and premium support are paid add-ons
- Annual terms are billed in full at contract start
Backblaze FAQ
How much does B2 Cloud Storage cost?
$6.95 per TB per month, billed by byte-hour. The first 10GB is free, and you can commit to 1-5 year terms for discounts.
How does free egress work?
Egress up to 3x your average monthly storage is free, and beyond that it costs $0.01/GB. Egress is unlimited and free through partners such as Cloudflare, Fastly, bunny.net and CoreWeave.
What is B2 Overdrive?
A high-throughput tier starting at $15/TB per month with unlimited free egress, built for AI/ML, HPC and media workloads. It requires a multi-petabyte commitment.
Are API calls charged?
Class A, B and C calls are free for pay-as-you-go users. Class D calls cost $0.004 per 10,000, and the first 2,500 calls per day are free.
Does Backblaze back up personal computers?
Yes. Computer Backup offers unlimited backup for Macs and PCs, with plans for individuals and businesses.
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Backblaze
Free · from $6.95/mo
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