MinIO vs Cloudflare R2
A detailed comparison to help you choose between MinIO and Cloudflare R2.
Quick Verdict
3.6/5
MinIO
0 reviews
4.4/5
Cloudflare R2
0 reviews
Cloudflare R2 is rated higher (4.4 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 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.
MinIO High-performance S3-compatible object storage for any cloud | Cloudflare R2 Zero egress S3 storage on Cloudflare's network | |
|---|---|---|
| Overview | ||
| Rating | 3.6 (0 reviews) | 4.4 (0 reviews)✓ |
| Pricing model | freemium | freemium (free tier plus usage-based pricing) |
| Starting price | Free tier available | Free tier available |
| 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. | 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 | — | Global — Cloudflare network |
| Tags | ||
| Tags | free tieropen sourceself hostables3 compatibleapi access | free tiers3 compatibleeu datacenterus datacenterapac datacenterapi access |
| Visit MinIO → | Visit Cloudflare R2 → | |
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
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
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