s5cmd is a high-performance command-line tool designed for rapid interaction with Amazon S3 and compatible object storage services, as well as local filesystems. Built with Go, it delivers exceptional speed that significantly outpaces traditional alternatives.

Key Performance Advantages:

32x faster uploads compared to s3cmd
12x faster downloads than aws-cli
Capable of saturating 40Gbps connections (~4.3 GB/s)
Parallel execution of operations for maximum throughput

Core Capabilities:

List, upload, download, and delete objects with ease
Move, copy, and rename objects across locations
Wildcard support across all operations for batch processing
Command file support to execute batches of operations at high speed
Server-side encryption using AWS KMS
Access Control List (ACL) management during uploads and copies
Bucket creation and removal
Object size summarization grouped by storage class
SQL-based JSON record selection from objects
S3 Transfer Acceleration support
Google Cloud Storage and S3-compatible service support
Structured logging for output querying
Shell auto-completion
Dry-run mode for safe testing

Installation Options: Available as pre-built binaries for Linux, macOS, and Windows, via Homebrew, MacPorts, Conda, FreeBSD packages, or built from source with Go 1.19+. Docker images are also provided for containerized environments.

Credential Management: Supports AWS profiles, environment variables, EC2 IAM roles, EKS Kube IAM roles, and anonymous access with automatic region detection.

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