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s3cmd vs AWS CLI: catalog facts
s3cmd	AWS CLI
Free Free and open source; you pay only for the storage you use.	Free The CLI is free; the AWS services it controls are billed separately.
macOS, Linux, Command line	Command line
Works with Amazon S3 and other S3-compatible providers Sync command suited to scripted backups	One tool for many AWS services Scriptable for automation
Command line only, no graphical interface No Windows version from the same project	Only useful with an AWS account Large command surface takes time to learn
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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