Azure Blob Storage VS Backblaze B2
Microsoft · Backblaze · Cloud Storage · Updated Oct 25, 2026
Side-by-Side Breakdown
| Feature | Azure Blob Storage | Backblaze B2 | Winner |
|---|---|---|---|
| Storage /GB/mo | $0.0180/GB/mo | $0.0060/GB/mo | ✓ Backblaze B2 |
| Egress /GB | $0.0870/GB | $0.0100/GB | ✓ Backblaze B2 |
| Provider | Microsoft | Backblaze | — |
| Category | cloud-storage | cloud-storage | — |
| redundancy | LRS/ZRS | 3× | |
| durability | 11 nines | 11 nines | |
| s3 compatible | Partial | Yes | |
| free tier | 5GB/mo | 10GB/mo | |
| Overall Winner | 🏆 | Backblaze B2 |
Azure Blob Storage vs Backblaze B2: Quick Summary
Backblaze B2 is the more affordable choice. Azure Blob Storage costs $0.0180/GB/mo vs Backblaze B2 at $0.0060/GB/mo (Storage /GB/mo). Backblaze B2 is 200.0% cheaper. Pricing verified as of Oct 25, 2026 — always confirm on the provider's official pricing page before committing.
Azure Blob Storage vs Backblaze B2: Full Pricing Analysis
On headline price, Backblaze B2 is the cheaper option: $0.0060/GB/mo versus $0.0180/GB/mo for Azure Blob Storage (Storage /GB/mo) — about 67% less. At a scale of one million per GBmonth, that difference works out to roughly $6,000.00 with Backblaze B2 against $18,000.00 with Azure Blob Storage. For high-volume workloads that gap compounds quickly, so if your usage is predictable and large, Backblaze B2 is the more economical default.
Price isn’t the whole story, though. Azure Blob Storage (Microsoft) sits at the higher price point, which is often justified by broader features, stronger delivery/SLA guarantees, or a more mature developer experience. If you need those capabilities, the premium can pay for itself. Choose Backblaze B2 when cost-per-unit is the priority and your requirements are straightforward; choose Azure Blob Storage when reliability, tooling, or ecosystem fit matter more than shaving the per-unit rate.
Beyond price, the two differ on redundancy (LRS/ZRS vs 3×), durability (11 nines vs 11 nines), s3 compatible (Partial vs Yes) and free tier (5GB/mo vs 10GB/mo). Check those specs against your actual requirements before committing — the cheaper option is only the better deal if it also meets your technical needs.
Pricing shown is Storage /GB/mo as published by each provider and verified Oct 25, 2026. Providers change prices and introduce free tiers and volume discounts frequently — always confirm the current rate on Microsoft’s and Backblaze’s official pricing pages before you commit.