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S3QL vs Mountpoint for Amazon S3: catalog facts
S3QL	Mountpoint for Amazon S3
Free Free and open source under the GNU GPL version 3.	Free Free and open source; normal Amazon S3 storage and request charges apply.
Linux, Command line	Linux, Command line
Presents online object storage as a Unix filesystem Includes compression, encryption, deduplication, and snapshots	Exposes S3 buckets as a local directory Lets existing file-based tools work with S3 data
Designed for Unix systems Requires an online storage service	Tied to Amazon S3 Requires an AWS account and incurs S3 charges
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: Apache-2.0
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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