upspin/upspin

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

6399 stars · 313 forks observed · 2026-08-28

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

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

framework · maturity maintenance

file-system security cryptography cli self-hosted object-storage security privacy files self-hosted microservices go cli self-hosted global-namespace end-to-end-encryption fuse file-sharing plan-9-inspired keyserver infrastructure-shutdown linux macos

Member repositories

For agents

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