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OpenAlternative

Open Source Amazon S3 Alternatives

A curated collection of the 6 best open source alternatives to Amazon S3.

The best open source alternative to Amazon S3 is MinIO. If that does not suit you, we have compiled a ranked list of other open source Amazon S3 alternatives to help you find a suitable replacement.

Amazon S3 alternatives are mainly Cloud Storage. Browse these if you want a narrower list of alternatives or are looking for a specific functionality of Amazon S3.

Written by OpenAlternative Last updated: June 2, 2026
#1

MinIO

Open source S3-compatible object storage optimized for cloud-native and AI applications, delivering unmatched performance and scalability

Open source S3-compatible object storage optimized for cloud-native and AI...

#2

Ceph

Ceph provides unified object, block, and file storage from a single cluster built on commodity hardware.

Ceph provides unified object, block, and file storage from a single cluste...

#3

Garage

Self-contained distributed object storage with S3 API compatibility. Runs on minimal hardware, replicates data across 3 zones for maximum resilience.

Self-contained distributed object storage with S3 API compatibility. Runs ...

#4

SlateDB

SlateDB is an embedded storage engine that leverages object storage for durability, scalability, and simplified replication without the need for disk

SlateDB is an embedded storage engine that leverages object storage for du...

#5

Storj

Storj offers a distributed cloud storage platform with enhanced security, global performance, and significant cost savings compared to traditional pro

Storj offers a distributed cloud storage platform with enhanced security, ...

#6

Vanguard

Vanguard offers powerful, community-driven backup solutions for servers and applications, with support for MySQL, PostgreSQL, and file backups.

Vanguard offers powerful, community-driven backup solutions for servers an...