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Best AWS Private Certificate Authority Alternatives in 2026

Updated

20 platforms from public key infrastructure software ranked against AWS Private Certificate Authority on the same published basis.

  1. 1
    OpenXPKI Free plan apiLinuxself-hostedWeb Free7.3
    AWS Private Certificate Authority vs OpenXPKI
  2. 2
    step-ca Free plan apiLinuxMacself-hostedWin Free7.3
    AWS Private Certificate Authority vs step-ca
  3. 3
    XiPKI Free plan apiLinuxMacself-hosted Free7.3
    AWS Private Certificate Authority vs XiPKI
  4. 4
    Boulder Free plan apiLinuxself-hosted Free7.2
    AWS Private Certificate Authority vs Boulder
  5. 5
    cert-manager Free plan apiLinuxself-hosted Free7.2
    AWS Private Certificate Authority vs cert-manager
  6. 6
    Keyfactor Platform Free trial apiself-hostedWeb 7.0
    AWS Private Certificate Authority vs Keyfactor Platform
  7. 7
    SSL.com Certificate Lifecycle Management apiWeb 7.0
    AWS Private Certificate Authority vs SSL.com Certificate Lifecycle Management
  8. 8
    DigiCert Private CA apiLinuxself-hostedWeb 6.9
    AWS Private Certificate Authority vs DigiCert Private CA
  9. 9
    Entrust Certificate Manager AndroidapiiOSLinuxself-hosted 6.9
    AWS Private Certificate Authority vs Entrust Certificate Manager
  10. 10
    GlobalSign Atlas apiWeb 6.9
    AWS Private Certificate Authority vs GlobalSign Atlas
  11. 11
    HashiCorp Nomad apiLinuxMacself-hostedWeb 6.9
    AWS Private Certificate Authority vs HashiCorp Nomad
  12. 12
    SecureW2 Cloud NAC AndroidapiiOSLinuxMac 6.9
    AWS Private Certificate Authority vs SecureW2 Cloud NAC
  13. 14
    EZCA Free trial AndroidapiiOSLinuxMac $200/mo6.8
    AWS Private Certificate Authority vs EZCA
  14. 15
    Sectigo Certificate Manager Free trial apiWeb $20.83/mo6.8
    AWS Private Certificate Authority vs Sectigo Certificate Manager
  15. 16
    AppViewX PKIaaS Free trial apiself-hostedWeb 6.7
    AWS Private Certificate Authority vs AppViewX PKIaaS
  16. 17
    OpenCA PKI Free plan LinuxMacself-hostedWeb Free5.9
    AWS Private Certificate Authority vs OpenCA PKI
  17. 18
    Cloudflare Serverless Registry LinuxMacself-hostedWin 5.5
    AWS Private Certificate Authority vs Cloudflare Serverless Registry
  18. 19
    KeyTalk CKMS Free trial AndroidiOSLinuxMacself-hosted €5/mo5.4
    AWS Private Certificate Authority vs KeyTalk CKMS
  19. 20
    Microsoft Active Directory Win $33.58/mo5.1
    AWS Private Certificate Authority vs Microsoft Active Directory
  20. 21
    EJBCA Free plan apiLinuxself-hostedWeb Free4.9
    AWS Private Certificate Authority vs EJBCA

AWS Private Certificate Authority alternatives compared

#PlatformScoreFree planFromRuns on
1OpenXPKI7.3Free planFreeAPI, Linux, self-hosted, Web
2step-ca7.3Free planFreeAPI, Linux, Mac, self-hosted, Windows
3XiPKI7.3Free planFreeAPI, Linux, Mac, self-hosted
4Boulder7.2Free planFreeAPI, Linux, self-hosted
5cert-manager7.2Free planFreeAPI, Linux, self-hosted
6Keyfactor Platform7.0No—API, self-hosted, Web
7SSL.com Certificate Lifecycle Management7.0No—API, Web
8DigiCert Private CA6.9No—API, Linux, self-hosted, Web
9Entrust Certificate Manager6.9No—Android, API, iOS, Linux, self-hosted, Web
10GlobalSign Atlas6.9No—API, Web
11HashiCorp Nomad6.9No—API, Linux, Mac, self-hosted, Web, Windows
12SecureW2 Cloud NAC6.9No—Android, API, iOS, Linux, Mac, Web, Windows
14EZCA6.8No$200/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
15Sectigo Certificate Manager6.8No$20.83/moAPI, Web
16AppViewX PKIaaS6.7No—API, self-hosted, Web
17OpenCA PKI5.9Free planFreeLinux, Mac, self-hosted, Web
18Cloudflare Serverless Registry5.5No—Linux, Mac, self-hosted, Windows
19KeyTalk CKMS5.4No€5/moAndroid, iOS, Linux, Mac, self-hosted, Windows
20Microsoft Active Directory5.1No$33.58/moWindows
21EJBCA4.9Free planFreeAPI, Linux, self-hosted, Web
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Questions about AWS Private Certificate Authority alternatives

What is the best alternative to AWS Private Certificate Authority?

OpenXPKI, number 1 in public key infrastructure software with a score of 7.3 out of 10. The others here: step-ca, XiPKI, Boulder and 16 more.

What is the best free alternative to AWS Private Certificate Authority?

OpenXPKI is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.