s3tools/s3cmd

Health v2 · maintenance only

Adoption not part of the score

4906 stars · 904 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

S3cmd is a free, open-source command line tool written in Python for uploading, retrieving, and managing data in Amazon S3 and other S3-protocol-compatible cloud storage services. It offers 60+ options including multipart uploads, encryption, incremental backup, s3 sync, ACL and metadata management, and CloudFront support.

Use cases

• sync local files to an S3 bucket from cron
• upload and retrieve files from S3-compatible storage like Google Cloud Storage
• run automated incremental backups to Amazon S3
• manage S3 bucket policies, ACLs, and metadata from the terminal
• encrypt files with GPG before uploading to cloud storage
• check S3 bucket size and usage
• manage CloudFront distributions for S3-hosted content

When to choose

• you want a mature, scriptable CLI for S3 operations in batch scripts or cron jobs
• you use S3-compatible providers beyond AWS such as Google Cloud Storage or DreamObjects
• you need built-in GPG encryption and incremental backup features
• you prefer a lightweight Python tool over the full AWS CLI

When to avoid

• you need a GUI or interactive file browser for cloud storage
• you require deep AWS ecosystem integration beyond S3 and CloudFront
• you prefer the officially supported AWS CLI with IAM role and profile tooling
• you need a graphical backup scheduler

Facets

cli-tool · maturity stable

cli backup file-system cryptography developer-tools cloud-computing files developer-tools windows python cli cross-platform s3 cloud-storage amazon-s3 s3-compatible sync cloudfront object-storage backup command-line linux macos

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markdown · JSON · MCP: product_card(name="s3tools/s3cmd")