openssl@4

Install command: 
brew install openssl@4

Cryptography and SSL/TLS Toolkit

https://openssl-library.org

License: Apache-2.0

Development: Pull requests

Formula JSON API: /api/formula/openssl@4.json

Formula code: openssl@4.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 tahoe ✅
sequoia ✅
sonoma ✅
macOS on
Intel		 sonoma ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 4.0.1

Other versions:

openssl@3 3.6.2 Cryptography and SSL/TLS Toolkit
openssl@3.5 3.5.7 Cryptography and SSL/TLS Toolkit
openssl@3.0 3.0.21 Cryptography and SSL/TLS Toolkit

Keg-only

Depends on:

ca-certificates 2026-05-14 Mozilla CA certificate store
To add additional certificates, place .pem files in
    $HOMEBREW_PREFIX/etc/openssl@4/certs

and run
    $HOMEBREW_PREFIX/opt/openssl@4/bin/c_rehash

Analytics:

Installs (30 days)
openssl@4 26,475
openssl@4 --HEAD 3
Installs on Request (30 days)
openssl@4 4,077
openssl@4 --HEAD 3
Build Errors (30 days)
openssl@4 43
Installs (90 days)
openssl@4 47,871
openssl@4 --HEAD 9
Installs on Request (90 days)
openssl@4 8,091
openssl@4 --HEAD 6
Installs (365 days)
openssl@4 47,875
openssl@4 --HEAD 9
Installs on Request (365 days)
openssl@4 8,091
openssl@4 --HEAD 6