# upspin/upspin

Upspin: A framework for naming everyone's everything.

Repository: https://github.com/upspin/upspin
Canonical: https://ross.abutalabs.com/products/upspin
Homepage: https://upspin.io
Language: Go
License: Apache-2.0
License Family: permissive
Topics: storage, golang, cryptography, sharing, fuse, upspin
Last push: 2025-07-14T15:59:35+00:00

## Health v2 (maintenance only)
Score: 46/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 31, release rhythm 35, longevity 100
- inputs: {"age_days": 3731, "days_push": 415, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6399, forks 313 (observed 2026-08-28T04:09:43.093207+00:00)

## What it is
Upspin is an experimental framework of protocols and reference implementations providing a secure, global naming system for sharing files and data across devices and services. It combines end-to-end encryption with tools like a FUSE filesystem (upspinfs), CLI, cacheserver, and self-hosted servers.

## Use cases
- securely share files with specific people without making them public
- access the same files across all my devices under one global namespace
- mount encrypted cloud storage as a local filesystem with FUSE
- self-host my own storage with end-to-end encryption
- keep nightly snapshots of my data
- manage all my data across commercial web services securely

## When to choose
- you want strong end-to-end encryption with a Plan 9-style global namespace
- you are comfortable self-hosting servers and running a Go toolchain
- you want to study the design of secure federated naming and sharing systems

## When to avoid
- you need actively maintained software - central infrastructure (keyserver) was shut down in 2025
- you need high performance - it is explicitly not a performance-focused project
- you need something suitable for non-technical users
- you want plug-and-play cloud storage without server administration

## Facets
- artifact type: framework
- maturity: maintenance
- function: file-system, security, cryptography, cli, self-hosted, object-storage
- domain: security, privacy, files, self-hosted, microservices
- platform: go, cli, self-hosted
- tags: global-namespace, end-to-end-encryption, fuse, file-sharing, plan-9-inspired, keyserver, infrastructure-shutdown, linux, macos

## Member repositories
- upspin/upspin (main) score 46

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:43.093207+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 2026-08-29T17:45:01.499634+00:00, confidence not recorded.
  - readme: https://github.com/upspin/upspin (fetched 2026-08-28T04:09:43.093207+00:00, sha f654c40f046c)
  - homepage: https://upspin.io (fetched 2026-08-29T08:41:54.030773+00:00, sha e122b166d35d)
  - site_page: https://upspin.io/doc/doc.html (fetched 2026-08-29T08:41:54.040179+00:00, sha 82c2b2e6f41e)
- Data as of 2026-08-30T08:39:29.467469+00:00.