- [Minio](https://minio.io/) - Minio is an open source object storage server compatible with Amazon S3 APIs. ([Source Code](https://github.com/minio/minio)) `Apache-2.0``Go`
- [SeaweedFS](https://github.com/chrislusf/seaweedfs) - SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optimized for lots of small files, and easy to add capacity. `Apache-2.0``Go`
- [SFTPGo](https://github.com/drakkan/sftpgo) - Flexible, fully featured and highly configurable SFTP server with optional FTP/S and WebDAV support. `AGPL-3.0``Go`
- [Zenko CloudServer](https://www.zenko.io/cloudserver) - Zenko CloudServer, an open-source Node.js implementation of a server handling the Amazon S3 protocol. ([Source Code](https://github.com/scality/S3)) `Apache-2.0``Nodejs`
- [Zenko CloudServer](https://www.zenko.io/cloudserver) - Zenko CloudServer, an open-source Node.js implementation of a server handling the Amazon S3 protocol. ([Source Code](https://github.com/scality/cloudserver)) `Apache-2.0``Nodejs`