MinIO is a high-performance, S3-compatible object storage server for building private cloud storage, data lakes, and scalable storage backends for applications.

61.4k stars7.8k forksAGPL-3.0last commit Slowing down
S3-compatible cloud object storage for storing and serving unstructured data. Provides predictable pricing, support for backups, archives and media workflows, S3 API compatibility, and no egress fees on most plans.
MinIO is a high-performance, S3-compatible object storage server for building private cloud storage, data lakes, and scalable storage backends for applications.

61.4k stars7.8k forksAGPL-3.0last commit Slowing down
SeaweedFS is a fast distributed storage system providing blob, file, and S3-compatible object storage with optional filer, replication, and erasure coding.

34.3k stars3k forksApache-2.0last commit Actively maintained
Garage is a lightweight, S3-compatible distributed object storage service built for small-to-medium self-hosted, geo-distributed deployments with strong resilience.

4.4k stars171 forksAGPL-3.0last commit Actively maintained
Open-source Node.js server implementing the Amazon S3 API, enabling local S3 emulation and a unified object storage interface across multiple backends and clouds.

1.9k stars259 forksApache-2.0last commit Actively maintained
Diskover indexes file systems with Elasticsearch to provide fast file search, metadata analytics, and storage visibility across on-prem, NAS, and cloud storage.
1.8k stars184 forksApache-2.0last commit Slowing down
Garage is a lightweight, operator-friendly, S3-compatible distributed object storage system designed for small-to-medium self-hosted clusters across multiple sites.

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Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 3 of 6 shipped a commit in the last six months. Licences in this list: AGPL-3.0, Apache-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Storage Services (File/Object).