AWS S3 vs Backblaze B2(2026)
AWS S3 is better for teams that need battle-tested reliability. Backblaze B2 is the stronger choice if 4x cheaper than s3. AWS S3 is paid (from $0.023/GB/month + egress) and Backblaze B2 is paid (from $6/TB/month).
Full feature breakdown, pricing details, and pros & cons below.
By Bikram Nath
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AWS S3
Amazon S3 is the industry-standard object storage service with 99.999999999% durability.
Starting at $0.023/GB/month + egress
Visit AWS S3Backblaze B2
Backblaze B2 is S3-compatible object storage at $6/TB/month — 4x cheaper than AWS S3.
Starting at $6/TB/month
Visit Backblaze B2How Do AWS S3 and Backblaze B2 Compare on Features?
| Feature | AWS S3 | Backblaze B2 |
|---|---|---|
| Pricing model | paid | paid |
| Starting price | $0.023/GB/month + egress | $6/TB/month |
| 99.999999999% durability | ✓ | — |
| Versioning | ✓ | ✓ |
| Lifecycle policies | ✓ | — |
| Event notifications | ✓ | — |
| Glacier archival | ✓ | — |
| Access controls | ✓ | — |
| S3-compatible API | — | ✓ |
| Cloudflare partnership (free egress) | — | ✓ |
| Lifecycle rules | — | ✓ |
| Public buckets | — | ✓ |
AWS S3 Pros and Cons vs Backblaze B2
AWS S3
Backblaze B2
Should You Use AWS S3 or Backblaze B2?
For most teams, AWS S3 is the better default: it offers battle-tested reliability and is paid (from $0.023/GB/month + egress). Choose Backblaze B2 instead if 4x cheaper than s3 matters more than egress fees add up fast. There is no universal winner — the right pick depends on your budget, team size, and whether you value battle-tested reliability or 4x cheaper than s3 more.
Choose AWS S3 if…
- •Battle-tested reliability
- •Massive ecosystem
- •Extensive tooling
Choose Backblaze B2 if…
- •4x cheaper than S3
- •Free egress to Cloudflare
- •S3-compatible