Let’s Encrypt

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).

18 Alternatives To Let's Encrypt

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AWS Certificate Manager

AWS Certificate Manager from Amazon Web Services (AWS)

AWS WAF

AWS WAF is a web application firewall that helps protect your web applications from common web exploits.
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Authy

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

Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box and many others.
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CAcert

CAcert.org is a community-driven Certificate Authority that issues certificates to the public at…
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COMODO SSL

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!

Comodo

Comodo, the leading Internet Security Provider offers Free Antivirus, SSL Certificate and other Internet Security related products with complete protection
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Cryptomator

When it comes to saving your files on a cloud server, it is important to ensure the security of those files. Keeping your delicate files out of the wrong hands can save you a lot of time and hassle.

Digicert

Encryption & Authentication
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Ensighten

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

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

GeoTrust

Guarantee online customer security with SSL certificates from GeoTrust. Purchase in bulk, manage multiple certificates & become your own Certificate Authority.

SSL2BUY

SSL2BUY is the foremost SSL certificate provider of online security solutions for businesses.
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Sophos SafeGuard Encryption

Centrally managed full-disk and file encryption with options to synchronize with award winning Sophos endpoint protection for automated, proactive data protection.

Spring Security

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

The Tor Project’s free software protects your privacy online. Site blocked? Email [mailto:[email protected]] for help downloading Tor Browser.
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VeraCrypt

When you need to know that your information is secure, VeraCrypt offers an added layer of protection. Their encrypting process keeps your files and data safe from prying eyes.

VeriSign

VeriSign Authentication Services provides solutions that allow companies & consumers to engage…