Backblaze B2 vs Cloudflare R2
A detailed comparison to help you choose between Backblaze B2 and Cloudflare R2.
Quick Verdict
4.2/5
Backblaze B2
0 reviews
4.4/5
Cloudflare R2
0 reviews
Cloudflare R2 is rated higher (4.4 vs 4.2). Backblaze B2 offers S3-compatible object storage at $6.95/TB/month (raised from $6/TB in May). Free egress up to 3x stored data for all customers, unlimited free egress to partner CDNs/compute. Cloudflare R2 is S3-compatible object storage with zero egress fees — ever. $0.015/GB/month storage, no data transfer costs. Tightly integrated with Cloudflare Workers and CDN.
Backblaze B2 S3-compatible object storage at $6.95/TB/month with 3x free egress | Cloudflare R2 Zero egress S3 storage on Cloudflare's network | |
|---|---|---|
| Overview | ||
| Rating | 4.2 (0 reviews) | 4.4 (0 reviews)✓ |
| Pricing model | usage-based | freemium (free tier plus usage-based pricing) |
| Starting price | From $6.95/mo | Free tier available✓ |
| Best for | Backup targets, snapshot archives, and asset storage where low, predictable cost beats global distribution | Teams serving media, assets, downloads or backups where egress dominates their current object storage bill — especially those already building on Workers or Pages. |
| Features | ||
| IPv6 | ||
| DDoS protection | ✓ | |
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Data-center locations | ||
| Regions | ["US West (Sacramento, Stockton, Phoenix)", "US East (Reston, VA)", "EU Central (Amsterdam, NL)", "CA East (Toronto, ON)"] | Global — Cloudflare network |
| Tags | ||
| Tags | free tiers3 compatibleus datacenterapi access | free tiers3 compatibleeu datacenterus datacenterapac datacenterapi access |
| Visit Backblaze B2 → | Visit Cloudflare R2 → | |
Backblaze B2
Pros
- + $6.95/TB/month storage with no minimum file size or storage duration fees
- + Free egress up to 3x average monthly storage for all customers; unlimited free egress to partner CDNs/compute
- + Genuine S3-compatible API plus native API, with free Class A/B/C transactions
- + 11 nines claimed durability with published Vault math (20 shards across 20 pods)
- + EU data residency via the Amsterdam region; permanent 10 GB free tier
Cons
- - One region per account (fixed at creation); no cross-region buckets or read replicas
- - S3 compatibility is partial: no IAM roles, object tagging, or website hosting; bucket-level ACLs only
- - SLA is thin: 99.9% objective with 5–10% service credits
- - Storage price rose from $6 to $6.95/TB in May — value still strong, but the direction is upward
- - No compute, functions, or database services
Cloudflare R2
Pros
- + Zero egress fees on all storage classes — no data transfer bill at all
- + Standing free tier: 10 GB-month storage, 1M Class A and 10M Class B ops monthly
- + S3-compatible API works with existing SDKs and migration tooling
- + Published durability (11 nines) and a 99.9% monthly uptime SLA with credits
- + Binds directly to Workers, Pages and public buckets with no cross-product egress
Cons
- - S3 feature surface is thinner — no replication topology, simpler lifecycle tooling
- - Class A operations at $4.50/million make write-heavy workloads pricier than storage-only math
- - Infrequent Access has a 30-day minimum storage duration and retrieval fees
- - Real lock-in sits in Workers-based processing around buckets, not the storage itself
- - Not suited to analytics-style scans or small-object high-churn data
Stay in the loop
Get weekly updates on the best new hosting and infrastructure providers, deals, and comparisons.
No spam. Unsubscribe anytime.