# ogxd/gxhash

Unsafely fast hashing algorithm 📈

Repository: https://github.com/ogxd/gxhash
Canonical: https://ross.abutalabs.com/products/gxhash
Homepage: https://docs.rs/gxhash
Language: Rust
License: MIT
License Family: permissive
Topics: cryptography, hash, hashing, hashmap, ilp, no-std, performance, simd
Last push: 2026-03-04T16:48:33+00:00

## Health v2 (maintenance only)
Score: 59/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 70, release rhythm 35, longevity 77
- inputs: {"age_days": 1086, "days_push": 182, "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 1021, forks 40 (observed 2026-08-28T04:03:15.696864+00:00)

## What it is
GxHash is a blazingly fast, robust non-cryptographic hashing algorithm implemented in Rust with zero dependencies. It uses hardware-accelerated AES-NI/SSE2 (or ARM AES/NEON) intrinsics and high ILP design to achieve top-tier throughput while passing all SMHasher quality tests.

## Use cases
- fastest non-cryptographic hash function for rust
- hash function for hashmap keys with low collisions
- simd-accelerated hashing using aes-ni intrinsics
- no-std hash algorithm for embedded rust
- dos-resistant hasher for rust hashmap and hashset
- hash algorithm that passes smhasher tests
- fast hashing of byte streams and large inputs

## When to choose
- you need maximum hashing throughput on x86 with AES-NI or ARM with AES/NEON
- you want a high-quality non-cryptographic hash for hashmaps, hashsets, or data processing
- you need a zero-dependency, no-std compatible hasher
- you want stable hash values within a major version

## When to avoid
- you need a cryptographically secure hash for security purposes (it is explicitly non-cryptographic)
- your target platform lacks AES and SSE2/NEON intrinsics - there is no fallback and the build will fail
- you need hashes stable across major versions
- you need portability to unsupported architectures

## Facets
- artifact type: library
- maturity: active
- function: cryptography, developer-tools
- domain: performance, developer-tools
- platform: rust, windows, cross-platform
- tags: non-cryptographic-hash, simd, aes-ni, hashmap, no-std, ilp, smhasher, algorithms, linux, macos

## Member repositories
- ogxd/gxhash (main) score 59

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:15.696864+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 2026-08-30T07:08:51.420867+00:00, confidence not recorded.
  - readme: https://github.com/ogxd/gxhash (fetched 2026-08-28T04:03:15.696864+00:00, sha 9a099d7ce83b)
  - homepage: https://docs.rs/gxhash (fetched 2026-08-29T13:09:13.814219+00:00, sha 50a869eeadcf)
  - site_page: https://docs.rs/ (fetched 2026-08-29T13:09:13.823331+00:00, sha f7faae34205b)
  - site_page: https://docs.rs/crate/gxhash/latest (fetched 2026-08-29T13:09:13.825525+00:00, sha a0ecb6ad90ea)
  - site_page: https://docs.rs/crate/gxhash/latest/features (fetched 2026-08-29T13:09:13.827885+00:00, sha 64335171b1a0)
  - site_page: https://docs.rs/about (fetched 2026-08-29T13:09:13.829549+00:00, sha 29ab7986fbf5)
  - site_page: https://docs.rs/about/badges (fetched 2026-08-29T13:09:13.831170+00:00, sha 6588cac258af)
  - site_page: https://docs.rs/about/builds (fetched 2026-08-29T13:09:13.832664+00:00, sha 811231ca4680)
  - site_page: https://docs.rs/about/metadata (fetched 2026-08-29T13:09:13.834264+00:00, sha 0dcdccb2b2b2)
  - site_page: https://docs.rs/about/redirections (fetched 2026-08-29T13:09:13.835707+00:00, sha 1b1efd93105f)
- Data as of 2026-08-30T08:39:29.467469+00:00.