Open Source Let's Encrypt AlternativesCertificate Authorities and other similar apps like Let's Encrypt

The best open source alternative to Let's Encrypt is acme.sh. If that doesn't suit you, our users have ranked more than 25 alternatives to Let's Encrypt and five of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Let's Encrypt are SSL For Free, Certera, LabCA and Lego (go-acme).

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Let's Encrypt alternatives page was last updated

Alternatives list

  1. acme.sh icon
     2 likes

    A pure Unix shell script implementing ACME client protocol and deploying SSL certificates.

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
     
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    1
  2. SSL For Free icon
     7 likes

    Free SSL Certificate issued in less than a minute.

    13 SSL For Free alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
     
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    1
  3. Certera icon
     Like

    Certera is modern and reputed Certificate Authority offering affordable website security, hosting and cyber security services along with digital security certificates such as SSL/TLS, Code Signing, Email Security and more, catering to the needs of individuals and SME businesses...

    Cost / License

    • Paid
    • Open Source

    Application type

    Platforms

    • Online
     
  4. LabCA icon
     Like

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

    4 LabCA alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Docker
    • Debian
    • Linux
     
  5. Let's Encrypt/ACME client and library written in Go.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Linux
    • Go (Programming Language)
     
5 of 5 Let's Encrypt alternatives