Compare software

s3cmd vs s5cmd: catalog facts
s3cmd	s5cmd
Free Free and open source; you pay only for the storage you use.	Free Free and open source.
macOS, Linux, Command line	Command line
Works with Amazon S3 and other S3-compatible providers Sync command suited to scripted backups	Parallel execution for fast bulk transfers Works on both S3 and local filesystems
Command line only, no graphical interface No Windows version from the same project	Command-line only, no graphical interface Focused on S3 rather than other cloud storage protocols
Downloadable app	Downloadable app
Open source	Open 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 September 24, 2026

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