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s3cmd vs Shuk: catalog facts
s3cmd	Shuk
Free Free and open source; you pay only for the storage you use.	Free Free to use; it requires access to an Amazon S3 bucket.
macOS, Linux, Command line	Command line
Works with Amazon S3 and other S3-compatible providers Sync command suited to scripted backups	Uploads files directly from the command line Creates pre-signed URLs for sharing
Command line only, no graphical interface No Windows version from the same project	Requires an Amazon S3 bucket
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.