Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.

JetS3t (pronounced "jet-set") is a free, open-source Java toolkit and application suite for Amazon Simple Storage Service (Amazon S3), Amazon CloudFront content delivery network, and Google Storage for Developers.

Plugin used to facilitate the use of Firebase services

A Maven Wagon implementation using GCS

autumo ifaceX - Additional Interface Processor Readers & Writers: FTP, FTPS, SFTP, WebDav, OpenStack, Google Cloud Storage, Google Drive, Amazon AWS S3, Dropbox, Microsoft Azure Blob Storage, BackBlaze

Google Cloud Storage with Spring Boot