# uuid-rs/uuid

Generate and parse UUIDs.

Repository: https://github.com/uuid-rs/uuid
Canonical: https://ross.abutalabs.com/products/uuid-rs-uuid
Homepage: https://www.crates.io/crates/uuid
Language: Rust
License: NOASSERTION
License Family: other
Topics: uuid, rust, parse-uuids
Last push: 2026-08-26T05:48:00+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 4417, "days_push": 7, "days_rel": 7, "gap_med": 15, "n_releases_24m": 28}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1234, forks 235 (observed 2026-08-28T04:04:04.772208+00:00)

## What it is
A Rust library for generating and parsing UUIDs (universally unique identifiers) per RFC 9562. It supports multiple UUID versions including random v4 generation, compile-time literals, and string parsing.

## Use cases
- generate unique ids in rust
- parse uuid strings
- generate random uuids v4
- assign unique identifiers without a central authority
- create ids for distributed systems
- define uuid constants at compile time

## When to choose
- you need UUID generation or parsing in a Rust project
- you need standards-compliant RFC 9562 UUIDs
- you want a widely used, battle-tested crate with huge adoption

## When to avoid
- you need UUIDs in a language other than Rust
- you need other identifier schemes like ULID or Snowflake IDs

## Facets
- artifact type: library
- maturity: stable
- function: serialization, developer-tools
- domain: developer-tools, databases, microservices
- platform: rust, cross-platform
- tags: uuid, guid, unique-identifiers, rfc-9562

## Member repositories
- uuid-rs/uuid (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:04.772208+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 2026-08-30T08:22:12.200070+00:00, confidence not recorded.
  - readme: https://github.com/uuid-rs/uuid (fetched 2026-08-28T04:04:04.772208+00:00, sha 87d901db1d9c)
  - registry_crates: https://crates.io/api/v1/crates/uuid (fetched 2026-08-29T12:21:39.785422+00:00, sha b8e1fddf8d23)
- Data as of 2026-08-30T08:39:29.467469+00:00.