Let's Encrypt AlternativesOnly Free apps categorised as Certificate Authorities

The best free Certificate Authority alternative to Let's Encrypt is ZeroSSL. If that doesn't suit you, our users have ranked more than 10 alternatives to Let's Encrypt and four of them are free Certificate Authorities so hopefully you can find a suitable replacement. Other interesting free Certificate Authority alternatives to Let's Encrypt are Buypass SSL, CAcert and LabCA.

filter to find the best alternatives

Let's Encrypt alternatives are mainly Certificate Authorities but may also be Web Hosting Services. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Let's Encrypt.
  • ...

Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate can be. Let’s Encrypt automates away the pain and lets site operators turn on and manage HTTPS...

More about Let's Encrypt
Let's Encrypt alternatives page was last updated Jul 3, 2024
  1. ZeroSSL icon
     3 likes

    FREE SSL certificates issued instantly online with Free SSL Certificate Wizard. Downloadable client for all platforms and Docker image available. Zero system requirements, zero technical knowledge, zero cost.

    11 ZeroSSL alternatives

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Windows
    • Linux
    • Online

    ZeroSSL Features

    1.  Free SSL
    2.  SSL
    3.  Supports SSL Certificates
    ZeroSSL iconLet's Encrypt Icon

    ZeroSSL VS Let's Encrypt

    Is ZeroSSL a good alternative to Let's Encrypt?
     
    Comments about ZeroSSL as an Alternative to Let's Encrypt
     
    loziniak

    They also have free SSL certificates.

    Positive commentAug 26, 2020
    -1
    Let's Encrypt Icon
    ZeroSSL icon
    • ZeroSSL is the most popular Web-based, Windows & Linux alternative to Let's Encrypt.

    • ZeroSSL is the most popular free alternative to Let's Encrypt.

    • ZeroSSL is Freemium and ProprietaryLet's Encrypt is Free and Open Source
  2. Buypass SSL icon
     1 like

    Buypass is established as a major player in securing transactions with electronic IDs and SSL certificates in Norway. We are a trusted European Certificate Authority (CA). Large public enterprises including the majority of the Norwegian health sector, municipal services and the...

    17 Buypass SSL alternatives

    License model

    • FreeProprietary

    Application type

    Platforms

    • Online

    Buypass SSL Features

    1.  Supports SSL Certificates
    2.  SSL
    Buypass SSL iconLet's Encrypt Icon

    Buypass SSL VS Let's Encrypt

    Is Buypass SSL a good alternative to Let's Encrypt?
     
  3. CAcert icon
     6 likes

    CAcert.org is a community-driven Certificate Authority that issues certificates to the public at large for free.

    19 CAcert alternatives

    License model

    • FreeProprietary

    Application type

    Platforms

    • Online

    CAcert Features

    1.  GPG Encryption
    2.  PGP Encryption
    3.  S/MIME Support
    4.  SSL
    5.  Certification
    6.  Encrypted Email
    Warning

    CAcert can't be trusted: It has serious code vulnerabilities, the coding style is very bad & they failed an organizational-practices audit which all other major certificate authorities have passed. Almost no browsers or operating systems support CAcert, so any website using the certificate will trigger a big untrusted connection/certificate warning that will drive most visitors away. https://tinyurl.com/cacert-got-what-you-paid-for | https://www.reddit.com/r/technology/comments/1qj1tz/http_20_to_be_https_only/cddfmz0

    CAcert iconLet's Encrypt Icon

    CAcert VS Let's Encrypt

    Is CAcert a good alternative to Let's Encrypt?
     
  4. LabCA icon
     Like this app

    A private Certificate Authority for internal (lab) use, based on the open source ACME Automated Certificate Management Environment implementation from Let's Encrypt (tm).

    3 LabCA alternatives
    LabCA screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Self-Hosted
    • Docker
    • Debian
    • Linux
    LabCA iconLet's Encrypt Icon

    LabCA VS Let's Encrypt

    Is LabCA a good alternative to Let's Encrypt?
     
4 of 4 Let's Encrypt alternatives