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Best AWS Private Certificate Authority Alternatives in 2026

Updated

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

  1. 1
    OpenCA PKI Free plan LinuxMacself-hostedWeb Free6.5
    AWS Private Certificate Authority vs OpenCA PKI
  2. 2
    step-ca Free plan apiLinuxMacself-hostedWin Free6.5
    AWS Private Certificate Authority vs step-ca
  3. 3
    EJBCA Free plan apiLinuxself-hostedWeb Free6.4
    AWS Private Certificate Authority vs EJBCA
  4. 4
    OpenXPKI Free plan apiLinuxself-hostedWeb Free6.4
    AWS Private Certificate Authority vs OpenXPKI
  5. 5
    XiPKI Free plan apiLinuxMacself-hosted Free6.4
    AWS Private Certificate Authority vs XiPKI
  6. 6
    Boulder Free plan apiLinuxself-hosted Free6.3
    AWS Private Certificate Authority vs Boulder
  7. 7
    cert-manager Free plan apiLinuxself-hosted Free6.3
    AWS Private Certificate Authority vs cert-manager
  8. 8
    Dogtag Certificate System Free plan apiLinuxself-hosted Free6.3
    AWS Private Certificate Authority vs Dogtag Certificate System
  9. 9
    SecureW2 Cloud NAC AndroidapiiOSLinuxMac 5.8
    AWS Private Certificate Authority vs SecureW2 Cloud NAC
  10. 10
    KeyTalk CKMS Free trial AndroidiOSLinuxMacself-hosted €5/mo5.7
    AWS Private Certificate Authority vs KeyTalk CKMS
  11. 11
    Cloudflare Serverless Registry LinuxMacself-hostedWin 5.6
    AWS Private Certificate Authority vs Cloudflare Serverless Registry
  12. 12
    Entrust Certificate Manager AndroidapiiOSLinuxself-hosted 5.6
    AWS Private Certificate Authority vs Entrust Certificate Manager
  13. 13
    HashiCorp Nomad apiLinuxMacself-hostedWeb 5.6
    AWS Private Certificate Authority vs HashiCorp Nomad
  14. 14
    DigiCert Private CA apiLinuxself-hostedWeb 5.5
    AWS Private Certificate Authority vs DigiCert Private CA
  15. 15
    Keyfactor Platform Free trial apiself-hostedWeb 5.5
    AWS Private Certificate Authority vs Keyfactor Platform
  16. 16
    SSL.com Certificate Lifecycle Management apiWeb 5.5
    AWS Private Certificate Authority vs SSL.com Certificate Lifecycle Management
  17. 17
    EZCA Free trial AndroidapiiOSLinuxMac $200/mo5.4
    AWS Private Certificate Authority vs EZCA
  18. 18
    GlobalSign Atlas apiWeb 5.4
    AWS Private Certificate Authority vs GlobalSign Atlas
  19. 19
    Smallstep ZTNA iOSLinuxMacself-hostedWin 5.2
    AWS Private Certificate Authority vs Smallstep ZTNA
  20. 20
    Sectigo Certificate Manager Free trial apiWeb $20.83/mo5.1
    AWS Private Certificate Authority vs Sectigo Certificate Manager

AWS Private Certificate Authority alternatives compared

#AppScoreFree planFromRuns on
1OpenCA PKI6.5Free planFreeLinux, Mac, self-hosted, Web
2step-ca6.5Free planFreeAPI, Linux, Mac, self-hosted, Windows
3EJBCA6.4Free planFreeAPI, Linux, self-hosted, Web
4OpenXPKI6.4Free planFreeAPI, Linux, self-hosted, Web
5XiPKI6.4Free planFreeAPI, Linux, Mac, self-hosted
6Boulder6.3Free planFreeAPI, Linux, self-hosted
7cert-manager6.3Free planFreeAPI, Linux, self-hosted
8Dogtag Certificate System6.3Free planFreeAPI, Linux, self-hosted
9SecureW2 Cloud NAC5.8No—Android, API, iOS, Linux, Mac, Web, Windows
10KeyTalk CKMS5.7No€5/moAndroid, iOS, Linux, Mac, self-hosted, Windows
11Cloudflare Serverless Registry5.6No—Linux, Mac, self-hosted, Windows
12Entrust Certificate Manager5.6No—Android, API, iOS, Linux, self-hosted, Web
13HashiCorp Nomad5.6No—API, Linux, Mac, self-hosted, Web, Windows
14DigiCert Private CA5.5No—API, Linux, self-hosted, Web
15Keyfactor Platform5.5No—API, self-hosted, Web
16SSL.com Certificate Lifecycle Management5.5No—API, Web
17EZCA5.4No$200/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
18GlobalSign Atlas5.4No—API, Web
19Smallstep ZTNA5.2No—iOS, Linux, Mac, self-hosted, Windows
20Sectigo Certificate Manager5.1No$20.83/moAPI, Web
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Questions about AWS Private Certificate Authority alternatives

What is the best alternative to AWS Private Certificate Authority?

OpenCA PKI, number 1 in public key infrastructure software with a score of 6.5 out of 10. The others here: step-ca, EJBCA, OpenXPKI and 16 more.

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

OpenCA PKI is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.