s4cmd ☆

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Description:
Super S3 command-line tool

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Devops

Tags: s3 cloud-storage aws cli devops

Install: brew install s4cmd

About:
S4cmd is a high-performance, Python-based command-line tool designed for managing Amazon S3 storage. It offers a faster and more user-friendly alternative to the standard AWS CLI, utilizing multi-threading to accelerate file operations like sync, upload, and download. Its primary value is significantly reducing transfer times for large datasets and improving efficiency for developers working with cloud storage.

Key Features:

Multi-threaded architecture for high-speed transfers
S3-compatible command syntax similar to standard Unix tools
Supports sync, upload, download, and delete operations
No dependency on the heavy Java-based AWS SDK

Use Cases:

Accelerating large-scale data backups to S3 buckets
Migrating datasets between local storage and S3
Automating data pipeline workflows involving S3

Alternatives:

aws-cli s3 – The official AWS CLI is more comprehensive but can be slower for bulk transfers and requires the full Java SDK.
s3cmd – A popular alternative written in Python, but S4cmd is often benchmarked as faster due to its multi-threading design.

Version History

Detected	Version	Rev	Change	Commit
Jan 11, 2026 8:17am		6	REVISION_ONLY	2a692e7d
Oct 10, 2024 2:31pm		3	VERSION_BUMP	66073e42