6 Best Open Source Amazon S3 Alternatives
A curated collection of the 6 best open source and self-hosted alternatives to Amazon S3 in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Amazon S3 in 2026? The top open-source alternative is MinIO — Open source S3-compatible object storage optimized for cloud-native and AI applications, delivering unmatched performance and scalability.
Other highly rated open-source Amazon S3 alternatives include Ceph, Garage and SlateDB.
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 applications, delivering unmatched performance and scalability
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 cluster built on commodity hardware.
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 on minimal hardware, replicates data across 3 zones for maximum resilience.
SlateDB is an embedded storage engine that leverages object storage for durability, scalability, and simplified replication without the need for disk management.
SlateDB is an embedded storage engine that leverages object storage for durability, scalability, and simplified replication without the need for disk management.
Storj offers a distributed cloud storage platform with enhanced security, global performance, and significant cost savings compared to traditional providers.
Storj offers a distributed cloud storage platform with enhanced security, global performance, and significant cost savings compared to traditional providers.
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
About Amazon S3
A highly durable, secure, and scalable object storage service that allows you to store and retrieve any amount of data from anywhere on the web.