MinIO vs Backblaze B2
A detailed comparison to help you choose between MinIO and Backblaze B2.
Quick Verdict
3.6/5
MinIO
0 reviews
4.2/5
Backblaze B2
0 reviews
Backblaze B2 is rated higher (4.2 vs 3.6). MinIO is a high-performance, S3-compatible object storage you deploy on your own infrastructure. Single binary, Kubernetes-native, and handles enterprise workloads. Used in ML pipelines and data lakes 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.
MinIO High-performance S3-compatible object storage for any cloud | Backblaze B2 S3-compatible object storage at $6.95/TB/month with 3x free egress | |
|---|---|---|
| Overview | ||
| Rating | 3.6 (0 reviews) | 4.2 (0 reviews)✓ |
| Pricing model | freemium | usage-based |
| Starting price | Free tier available✓ | From $6.95/mo |
| Best for | Private AI/ML data lakes, regulated or air-gapped environments needing S3 inside their boundary, edge aggregation, CI artifact stores, and single-node backup targets. | Backup targets, snapshot archives, and asset storage where low, predictable cost beats global distribution |
| 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)"] |
| Tags | ||
| Tags | free tieropen sourceself hostables3 compatibleapi access | free tiers3 compatibleus datacenterapi access |
| Visit MinIO → | Visit Backblaze B2 → | |
MinIO
Pros
- + S3 API compatibility that the whole tool ecosystem works against unchanged
- + Single-binary deployment on Linux, macOS, Windows, Kubernetes, bare metal, and edge hardware
- + Erasure coding, bitrot detection, versioning, object locking, and multi-site replication
- + AIStor Free is genuinely free for single-node use with the full feature set
- + Certified enterprise path (FIPS 140-3, SOC 2, ISO 27001, SEC 17a-4(f), FINRA) with sub-4-hour support SLA
Cons
- - Open-source AGPL edition is frozen — no security patches — and the community console lost admin features in 2025
- - AGPL network copyleft creates legal exposure when MinIO sits inside a hosted service
- - Enterprise pricing is quote-only, with reported floors around $96,000/year
- - Self-hosted means you own capacity planning, failure handling, and backups; replication is not a backup
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
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