LibreSSL is described as 'Version of the TLS/crypto stack forked from OpenSSL in 2014, with goals of modernizing the codebase, improving security, and applying best practice development processes' and is a cryptography library in the security & privacy category. There are five alternatives to LibreSSL for a variety of platforms, including Windows, Linux, BSD, Mac and Android apps. The best LibreSSL alternative is OpenSSL, which is both free and Open Source. Other great apps like LibreSSL are mbed TLS, GnuTLS, SharkSSL and wolfSSL.