Free tier
$0
month
First 10 GB of storage is free. Free egress is available up to three times average monthly storage.
Check current pricing →B
Backblaze B2
S3-compatible object storage for application data, backups, archives, media workflows, and AI datasets.
Editorial overview
Aggregated Overview
Backblaze documents S3-compatible and Native APIs, web-console management, lifecycle rules, object lock, broad integrations, and predictable usage pricing. G2 reports strong user sentiment, while reviews also identify interface and support limitations.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Overview
Backblaze B2 is a cloud object storage service for storing, managing, and delivering files. It supports browser access, application programming interfaces, command-line tools, and third-party integrations.
The service provides an S3-compatible API for existing AWS-compatible software and a Backblaze Native API for product-specific operations. Common workloads include backups, active archives, application storage, media delivery, and AI data pipelines.
Backblaze B2 Decision Snapshot
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Platforms
API, CLI, Linux, macOS, Web, Windows
TechZella assessment
8.6/10
Backblaze B2 Pros & Cons
Pros
- S3-compatible API supports many existing applications and SDKs.
- Storage pricing starts at a comparatively low published rate.
- First 10 GB of storage is free.
- Free egress reaches three times average monthly storage.
- No minimum file size or storage-duration fees apply.
- Broad integrations support backup, synchronization, CDN, and media workflows.
- Object Lock and lifecycle rules support retention and recovery policies.
Cons
- B2 is infrastructure software and usually requires technical setup.
- The S3-compatible API lacks some B2-specific functions, including key management.
- Advanced administration often requires the web console or Native API.
- The service offers fewer storage-class options than hyperscale providers.
- Public reviews identify a basic interface and some support limitations.
- Egress above the included allowance can add usage charges outside partner pathways.
Backblaze B2 Pricing & Plans
Pay-as-you-go
From $6.95/TB
month
Monthly storage billing based on average data stored. Includes free Class A, B, and C transactions and no minimum storage-duration fees.
Check current pricing →B2 Reserve
Custom
annual
Annual capacity pricing for larger commitments, with discounts available for volume and term commitments.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Backblaze B2 Competitors & Alternatives
Compare similar products directly, then see which alternatives may make more sense when your requirements differ.
Direct competitors
These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with Backblaze B2.
Backblaze B2 Features
Storage
- Always-hot cloud object storage
- Private and public buckets
- Browser-compatible file URLs
- No minimum file size fees
- No minimum storage-duration fees
Data Protection
- Object Lock retention controls
- Lifecycle rules
- Scoped application keys
- Private bucket authentication
- Encryption and access controls
APIs and Developer Tools
- S3-compatible API
- Backblaze Native API
- AWS SDK compatibility
- Command-line access
- Community SDK support
- HTTPS access
Integrations
- Cloudflare
- Fastly
- Veeam
- Synology
- rclone
- Cyberduck
- Commvault
- Rubrik
- MSP360
- Nextcloud
- Cloudflare CDN
- Vultr
Workloads
- Backup and disaster recovery
- Active archiving
- Media storage and delivery
- Application backends
- AI and machine learning datasets
- Content distribution
Backblaze B2 Specifications
| Deployment | Cloud service |
|---|---|
| Storage model | Object storage |
| Primary API | S3-compatible API |
| Additional API | Backblaze Native API |
| Access protocol | HTTPS |
| Billing model | Usage-based monthly or annual capacity |
| Free allowance | First 10 GB storage |
| Free egress | Up to 3x average monthly storage |
| Management interface | Web console, APIs, and CLI |
| Supported operating systems | Any operating system with supported web, API, or compatible client access |
| Data regions | Region selected at account or bucket configuration |
| Company status | Public company, Nasdaq: BLZE |
Our evidence-based assessment
TechZella Score
A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
8.6/10Moderate confidence
Backblaze documents S3-compatible and Native APIs, web-console management, lifecycle rules, object lock, broad integrations, and predictable usage pricing. G2 reports strong user sentiment, while reviews also identify interface and support limitations.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Backblaze B2 FAQs
Answers begin with the clearest available response, followed by the context that helps you act on it.
Does Backblaze B2 have a free trial?
Yes.
Backblaze provides a free tier rather than a time-limited trial. The first 10 GB of B2 storage is free, and users can create an account through the Start Free flow.
Backblaze provides a free tier rather than a time-limited trial. The first 10 GB of B2 storage is free, and users can create an account through the Start Free flow.
Which APIs does B2 support?
B2 supports an S3-compatible API and a Backblaze Native API. Backblaze recommends the S3-compatible API for most new integrations and the Native API for B2-specific capabilities.
Can B2 store backups?
Yes. B2 is designed for backup, recovery, active archiving, and disaster-recovery workflows. Backup applications can connect through S3 compatibility, Native API support, or documented partner integrations.
Does B2 support object immutability?
Yes. Object Lock can restrict file modification or deletion for a specified retention period.
Does B2 support FTP or SSH?
Backblaze documents HTTPS as the supported connection protocol for the Native API. FTP and SSH are not officially supported by that API.
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