# s3fs-fuse/s3fs-fuse

FUSE-based file system backed by Amazon S3

Repository: https://github.com/s3fs-fuse/s3fs-fuse
Canonical: https://ross.abutalabs.com/products/s3fs-fuse
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: fuse, s3, aws-s3, filesystem, cloud-storage, fuse-filesystem
Last push: 2026-08-23T13:31:46+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 28, longevity 100
- inputs: {"age_days": 4667, "days_push": 10, "days_rel": 268, "gap_med": 204.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9972, forks 1077 (observed 2026-08-28T04:10:39.122918+00:00)

## What it is
s3fs is a FUSE-based file system that lets you mount an Amazon S3 bucket (or any S3-compatible object store) as a local directory on Linux, macOS, and FreeBSD. It preserves the native S3 object format so other tools like the AWS CLI can still operate on the same data.

## Use cases
- mount an s3 bucket as a local filesystem on linux
- access s3 files like a local directory
- backup files directly to s3 via mount point
- use s3-compatible object storage as a drive
- serve application files stored in s3 without downloading
- random writes and appends to files in s3

## When to choose
- you want POSIX-like file operations (read/write, directories, symlinks, permissions) directly on an S3 bucket
- you need to interoperate with other S3 tools since objects stay in native format
- you use S3-compatible stores like MinIO and want a filesystem interface
- you need multipart uploads for large files or server-side encryption

## When to avoid
- you need high-performance or low-latency filesystem semantics - S3's object store model makes random access slow
- you need full POSIX compliance such as locking or hard links
- you want a managed sync tool rather than a mount (rclone or aws s3 sync may fit better)
- you are on a platform without FUSE support

## Facets
- artifact type: application
- maturity: active
- function: file-system, object-storage, cloud, caching, security
- domain: cloud-computing, files, self-hosted, developer-tools
- platform: bsd, windows, cli
- tags: fuse, s3, object-storage, mount, posix-filesystem, s3-compatible, linux, macos

## Member repositories
- s3fs-fuse/s3fs-fuse (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:39.122918+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 2026-08-29T17:20:02.975367+00:00, confidence not recorded.
  - readme: https://github.com/s3fs-fuse/s3fs-fuse (fetched 2026-08-28T04:10:39.122918+00:00, sha 178834ff74cc)
- Data as of 2026-08-30T08:39:29.467469+00:00.