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Upspin

Global name system for secure file sharing

File Sync & Storage ★ 6.4k stars Hard setup BSD-3-Clause

Upspin is an experimental framework from Google for naming and sharing files securely across the internet. It gives every file a globally unique name and end-to-end encrypted access control.

Official siteSource code

Key features

  • Global file naming system
  • End-to-end encrypted sharing
  • Fine-grained access groups

Strengths

  • Released under the BSD-3-Clause license
  • Mature project with 6.4k GitHub stars
  • Written in Go
  • Tiny footprint — runs in 128 MB RAM

Is Upspin secure?

OSV.dev has no published security advisories for Upspin's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Upspin replaces

Self-hosted Dropbox alternatives

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SelfHostIndex: 37 · at risk

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