Let's Encrypt Alternatives

OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and …

Open Source

AWS Certificate Manager from Amazon Web Services (AWS)

Elegant user management, tailor-made for B2B SaaS

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Ensighten provides enterprise tag management solutions that enable businesses manage their websites more effectively.

Automatically enable HTTPS on your website with EFF's Certbot, deploying Let's Encrypt certificates.

Encryption & Authentication

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...

Open Source

BitLocker is a full disk encryption feature included with Windows Vista and later.

FileVault is a method of using encryption with volumes on Mac computers.

VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.

Buy your Comodo SSL certificates directly from the No.1 Certificate Authority powered by Sectigo (formerly Comodo CA). Fast service with 24/7 support. Over 20 years of SSL Certificate Authority!

The SSL Store™ offers 70% Off On GeoTrust SSL Certificates, including Free Site Seal. Buy GeoTrust CA SSL and get 256 bit encryption web security now.

GlobalSign offers a range of SSL Certificates with the strongest 2048 bit encryption and value add features to ensure your website is protected.