# rlmcpherson/s3gof3r

Fast, concurrent, streaming access to Amazon S3, including gof3r, a CLI. http://godoc.org/github.com/rlmcpherson/s3gof3r

Repository: https://github.com/rlmcpherson/s3gof3r
Canonical: https://ross.abutalabs.com/products/s3gof3r
Language: Go
License: MIT
License Family: permissive
Last push: 2021-08-28T17:43:13+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4779, "days_push": 1831, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1143, forks 180 (observed 2026-08-28T04:03:44.947998+00:00)

## What it is
s3gof3r is a Go library providing fast, parallelized, streaming access to Amazon S3, optimized for large object transfers. It also ships gof3r, a CLI that supports streaming uploads/downloads through Unix pipes with end-to-end integrity checking and automatic retries.

## Use cases
- stream large files to and from amazon s3 at high speed
- pipe a tar archive directly into s3 from the command line
- upload big objects to s3 with parallel multipart transfers
- download s3 objects with md5 integrity verification
- stream data through unix pipes while uploading to s3

## When to choose
- you need maximum-throughput streaming transfers of large objects to/from S3 from Go or the shell
- you want built-in md5 integrity checking and automatic retries on every part
- you want to compose S3 transfers with other tools via pipes

## When to avoid
- you need broad AWS SDK features beyond S3 or support for other cloud providers
- you need a maintained, actively developed client - the project has seen little activity since 2021
- you only transfer small files where parallelism offers no benefit

## Facets
- artifact type: library
- maturity: maintenance
- function: http-client, cli, file-upload, concurrency
- domain: cloud-computing, developer-tools, files
- platform: go, cli, cloud
- tags: amazon-s3, streaming, multipart-upload, object-storage, pipes, linux, macos

## Member repositories
- rlmcpherson/s3gof3r (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:44.947998+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:34:58.146195+00:00, confidence not recorded.
  - readme: https://github.com/rlmcpherson/s3gof3r (fetched 2026-08-28T04:03:44.947998+00:00, sha 5fb1da0b66b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.