MinIO Has a Free S3-Compatible Object Storage — Self-Host Your Own AWS S3

#storage #s3 #devops #selfhosted

MinIO is a high-performance, S3-compatible object storage you can run anywhere.

What You Get for Free

S3-compatible API — use existing AWS SDKs and tools
Unlimited storage — limited only by your disks
Erasure coding — data redundancy without RAID
Encryption — at-rest and in-transit, SSE-S3/SSE-KMS
Versioning & locking — object versioning, WORM compliance
Replication — site-to-site, bucket-to-bucket
IAM — users, groups, policies (S3-compatible)
Console — web-based management dashboard

Quick Start

# Docker
docker run -d -p 9000:9000 -p 9001:9001 \
  -e MINIO_ROOT_USER=admin \
  -e MINIO_ROOT_PASSWORD=password123 \
  -v minio-data:/data \
  minio/minio server /data --console-address ":9001"

# Use with any S3 SDK
aws s3 --endpoint-url http://localhost:9000 mb s3://my-bucket
aws s3 --endpoint-url http://localhost:9000 cp file.txt s3://my-bucket/

Why Developers Choose It

AWS S3 charges for storage + requests + egress:

MinIO is free — self-hosted, no per-request fees
S3 API compatible — switch from AWS S3 by changing endpoint URL
Blazing fast — designed for AI/ML workloads, high throughput
Run anywhere — laptop, on-prem, cloud VM, Kubernetes

A data team was paying $450/mo for S3 storage and egress fees. They deployed MinIO on a $30/mo server with 1TB SSD — same S3 API, same tools, 93% cost savings.