MinIO vs Amazon S3
A detailed comparison to help you choose between MinIO and Amazon S3.
Quick Verdict
3.6/5
MinIO
0 reviews
4.1/5
Amazon S3
0 reviews
Amazon S3 is rated higher (4.1 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 AWS S3 stores and retrieves unlimited amounts of data via a simple web interface. Built for developers, enterprises, and anyone needing reliable, durable cloud storage with pay-as-you-go pricing.
MinIO High-performance S3-compatible object storage for any cloud |  Amazon S3 Scalable object storage for any data size or type | |
|---|---|---|
| Overview | ||
| Rating | 3.6 (0 reviews) | 4.1 (0 reviews)✓ |
| Pricing model | freemium | pay-as-you-go (per GB-month + per 1,000 requests + retrieval/transfer) |
| Starting price | Free tier available✓ | From $0.023/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. | Teams building on AWS who need durable, API-stable object storage for backups, data lakes, static content and archives — and who value tooling compatibility over the lowest per-GB rate |
| Features | ||
| IPv6 | ✓ | |
| DDoS protection | ✓ | |
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Data-center locations | ||
| Regions | — | 39 AWS regions / 123-124 AZs |
| Tags | ||
| Tags | free tieropen sourceself hostables3 compatibleapi access | free tiers3 compatibleapi accessus datacentereu datacenterapac datacenterterraform provider |
| Visit MinIO → | Visit Amazon S3 → | |
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
Amazon S3
Pros
- + Designed for 11 nines durability with cross-AZ replication by default and strong read-after-write consistency
- + The S3 API is the industry standard — code written in 2006 still works, and third-party compatibility is everywhere
- + 23x cost ladder from Standard down to Glacier Deep Archive at $0.00099/GB-month, with lifecycle automation
- + Deepest storage feature set available: versioning, Object Lock, replication, inventory, event notifications, access management
Cons
- - Egress at $0.09/GB and per-request pricing produce surprise bills for chatty or restore-heavy workloads
- - IA and Glacier classes add retrieval fees and latency — the restore path must be priced separately
- - Policy configuration (bucket policies, IAM, Block Public Access, KMS keys) is complex and historically error-prone
- - SLA (99.9%/99.0%) is far below the durability figure — availability and durability are different promises
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