Rclone is an open source, multi threaded, command line computer program to manage or migrate content on cloud and other high latency storage. Its capabilities include sync, transfer, crypt, cache, union, compress and mount. The rclone website lists including S3, and Google Drive. Descriptions of rclone often carry the strapline Rclone syncs your files to cloud storage. Those prior to 2020 include the alternative Rsync for Cloud Storage. Users have called rclone The Swiss Army Knife of cloud storage.