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openssl@3

brew install openssl@3 v3.6.2 Apache-2.0

OpenSSL 3.x: cryptographic library and command-line toolkit for SSL/TLS, hashing, and encryption.

Why you might care

Essential build and runtime dependency for any software needing HTTPS, digital signatures, or cryptographic operations. Version 3.x is the current stable series with modern algorithms and security updates. Many formulae and system tools link against it; install explicitly to ensure a specific version or to use the openssl command-line utilities for certificate generation, key management, and cryptographic operations.

Categories

crypto library ssl-tls

Alternatives

LibreSSL BoringSSL GnuTLS
414.1k
30-day installs · #2
1.4M
90-day · #2
5.6M
365-day · #1

Runtime dependencies

ca-certificates

Links

Caveats

To add additional certificates, place .pem files in
  $HOMEBREW_PREFIX/etc/openssl@3/certs

and run
  $HOMEBREW_PREFIX/opt/openssl@3/bin/c_rehash

OpenSSL 3.6 is only supported until 2026-11-01 so the `openssl@3`
formula will be downgraded to OpenSSL 3.5 (LTS) in a future update.

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

Raw metadata 
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  "aliases": [
    "openssl",
    "openssl@3.6"
  ],
  "alternatives": [
    "LibreSSL",
    "BoringSSL",
    "GnuTLS"
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  "build_dependencies": [],
  "categories": [
    "crypto",
    "library",
    "ssl-tls"
  ],
  "caveats": "To add additional certificates, place .pem files in\n  $HOMEBREW_PREFIX/etc/openssl@3/certs\n\nand run\n  $HOMEBREW_PREFIX/opt/openssl@3/bin/c_rehash\n\nOpenSSL 3.6 is only supported until 2026-11-01 so the `openssl@3`\nformula will be downgraded to OpenSSL 3.5 (LTS) in a future update.\n",
  "conflicts_with": [],
  "dependencies": [
    "ca-certificates"
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  "deprecation_reason": null,
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  "enrichment_fetched_at": "2026-06-20T23:40:36+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
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  "github_topics": [],
  "homepage": "https://openssl-library.org",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": "OpenSSL Library",
  "installs_30d": 414065,
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  "installs_90d": 1422528,
  "keg_only": 0,
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  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "Apache-2.0",
  "llm_generated_at": "2026-06-20T23:42:04+00:00",
  "llm_model": "claude-haiku-4-5",
  "name": "openssl@3",
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  "one_liner": "OpenSSL 3.x: cryptographic library and command-line toolkit for SSL/TLS, hashing, and encryption.",
  "optional_dependencies": [],
  "rank_30d": 2,
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  "ruby_source_path": "Formula/o/openssl@3.rb",
  "tap": "homebrew/core",
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  "uses_from_macos": [],
  "version_head": null,
  "version_stable": "3.6.2",
  "versioned_formulae": [
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    "openssl@3.0"
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  "why_use_this": "Essential build and runtime dependency for any software needing HTTPS, digital signatures, or cryptographic operations. Version 3.x is the current stable series with modern algorithms and security updates. Many formulae and system tools link against it; install explicitly to ensure a specific version or to use the openssl command-line utilities for certificate generation, key management, and cryptographic operations."
}