gnutls

brew install gnutls v3.8.13_2 LGPL-2.1-or-later AND GPL-3.0-only

C library implementing TLS, DTLS, and X.509 certificate handling per GNU standards.

Why you might care

GnuTLS is a mature, LGPL-licensed TLS library useful when you need cryptographic transport without OpenSSL's licensing constraints or when building GNU-adjacent infrastructure. It's widely used as a system dependency in mail clients, web servers, and VPN tools; most users encounter it as a build dependency rather than calling it directly.

Alternatives

OpenSSL LibreSSL BoringSSL Mbed TLS

105.1k

30-day installs · #37

324.9k

90-day · #45

1.3M

365-day · #41

Runtime dependencies

ca-certificates gmp libidn2 libtasn1 libunistring nettle p11-kit gettext

Build dependencies

pkgconf texinfo

Caveats

Guile bindings are now in the `guile-gnutls` formula.

Blurb generated by claude-haiku-4-5 on today.

Raw metadata

{
  "aliases": [],
  "alternatives": [
    "OpenSSL",
    "LibreSSL",
    "BoringSSL",
    "Mbed TLS"
  ],
  "build_dependencies": [
    "pkgconf",
    "texinfo"
  ],
  "categories": [
    "library",
    "crypto",
    "networking"
  ],
  "caveats": "Guile bindings are now in the `guile-gnutls` formula.",
  "conflicts_with": [],
  "dependencies": [
    "ca-certificates",
    "gmp",
    "libidn2",
    "libtasn1",
    "libunistring",
    "nettle",
    "p11-kit",
    "gettext"
  ],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "GNU Transport Layer Security (TLS) Library",
  "disable_reason": null,
  "disabled": 0,
  "enrichment_fetched_at": "2026-06-20T23:38:14+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "gnutls",
  "github_default_branch": null,
  "github_last_commit_at": null,
  "github_readme_excerpt": null,
  "github_repo": null,
  "github_stars": null,
  "github_topics": [],
  "homepage": "https://gnutls.org/",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": "GnuTLS",
  "installs_30d": 105057,
  "installs_365d": 1280797,
  "installs_90d": 324876,
  "keg_only": 0,
  "keg_only_reason": null,
  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "LGPL-2.1-or-later AND GPL-3.0-only",
  "llm_generated_at": "2026-06-20T23:42:17+00:00",
  "llm_model": "claude-haiku-4-5",
  "name": "gnutls",
  "oldnames": [],
  "one_liner": "C library implementing TLS, DTLS, and X.509 certificate handling per GNU standards.",
  "optional_dependencies": [],
  "rank_30d": 37,
  "rank_365d": 41,
  "rank_90d": 45,
  "raw_hash": "0198b34423c98fe8",
  "recommended_dependencies": [],
  "revision": 2,
  "ruby_source_path": "Formula/g/gnutls.rb",
  "tap": "homebrew/core",
  "test_dependencies": [],
  "uses_from_macos": [],
  "version_head": null,
  "version_stable": "3.8.13",
  "versioned_formulae": [],
  "why_use_this": "GnuTLS is a mature, LGPL-licensed TLS library useful when you need cryptographic transport without OpenSSL\u0027s licensing constraints or when building GNU-adjacent infrastructure. It\u0027s widely used as a system dependency in mail clients, web servers, and VPN tools; most users encounter it as a build dependency rather than calling it directly."
}