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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 Free7.1
    AWS Private Certificate Authority vs OpenCA PKI
  2. 2
    step-ca Free plan apiLinuxMacself-hostedWin Free7.1
    AWS Private Certificate Authority vs step-ca
  3. 3
    EJBCA Free plan apiLinuxself-hostedWeb Free6.9
    AWS Private Certificate Authority vs EJBCA
  4. 4
    OpenXPKI Free plan apiLinuxself-hostedWeb Free6.9
    AWS Private Certificate Authority vs OpenXPKI
  5. 5
    SecureW2 Cloud NAC AndroidapiiOSLinuxMac 6.9
    AWS Private Certificate Authority vs SecureW2 Cloud NAC
  6. 6
    XiPKI Free plan apiLinuxMacself-hosted Free6.9
    AWS Private Certificate Authority vs XiPKI
  7. 7
    EZCA Free trial AndroidapiiOSLinuxMac $200/mo6.8
    AWS Private Certificate Authority vs EZCA
  8. 8
    Boulder Free plan apiLinuxself-hosted Free6.7
    AWS Private Certificate Authority vs Boulder
  9. 9
    cert-manager Free plan apiLinuxself-hosted Free6.7
    AWS Private Certificate Authority vs cert-manager
  10. 10
    Dogtag Certificate System Free plan apiLinuxself-hosted Free6.7
    AWS Private Certificate Authority vs Dogtag Certificate System
  11. 11
    Entrust Certificate Manager AndroidapiiOSLinuxself-hosted 6.7
    AWS Private Certificate Authority vs Entrust Certificate Manager
  12. 12
    KeyTalk CKMS Free trial AndroidiOSLinuxMacself-hosted €5/mo6.7
    AWS Private Certificate Authority vs KeyTalk CKMS
  13. 13
    HashiCorp Nomad apiLinuxMacself-hostedWeb 6.6
    AWS Private Certificate Authority vs HashiCorp Nomad
  14. 14
    Cloudflare Serverless Registry LinuxMacself-hostedWin 6.5
    AWS Private Certificate Authority vs Cloudflare Serverless Registry
  15. 15
    Keyfactor Platform Free trial apiself-hostedWeb 6.4
    AWS Private Certificate Authority vs Keyfactor Platform
  16. 16
    Smallstep ZTNA iOSLinuxMacself-hostedWin 6.4
    AWS Private Certificate Authority vs Smallstep ZTNA
  17. 17
    SSL.com Certificate Lifecycle Management apiWeb 6.4
    AWS Private Certificate Authority vs SSL.com Certificate Lifecycle Management
  18. 18
    DigiCert Private CA apiLinuxself-hostedWeb 6.3
    AWS Private Certificate Authority vs DigiCert Private CA
  19. 19
    GlobalSign Atlas apiWeb 6.3
    AWS Private Certificate Authority vs GlobalSign Atlas
  20. 20
    Sectigo Certificate Manager Free trial apiWeb $20.83/mo6.2
    AWS Private Certificate Authority vs Sectigo Certificate Manager

AWS Private Certificate Authority alternatives compared

#AppScoreFree planFromRuns on
1OpenCA PKI7.1Free planFreeLinux, Mac, self-hosted, Web
2step-ca7.1Free planFreeAPI, Linux, Mac, self-hosted, Windows
3EJBCA6.9Free planFreeAPI, Linux, self-hosted, Web
4OpenXPKI6.9Free planFreeAPI, Linux, self-hosted, Web
5SecureW2 Cloud NAC6.9No—Android, API, iOS, Linux, Mac, Web, Windows
6XiPKI6.9Free planFreeAPI, Linux, Mac, self-hosted
7EZCA6.8No$200/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
8Boulder6.7Free planFreeAPI, Linux, self-hosted
9cert-manager6.7Free planFreeAPI, Linux, self-hosted
10Dogtag Certificate System6.7Free planFreeAPI, Linux, self-hosted
11Entrust Certificate Manager6.7No—Android, API, iOS, Linux, self-hosted, Web
12KeyTalk CKMS6.7No€5/moAndroid, iOS, Linux, Mac, self-hosted, Windows
13HashiCorp Nomad6.6No—API, Linux, Mac, self-hosted, Web, Windows
14Cloudflare Serverless Registry6.5No—Linux, Mac, self-hosted, Windows
15Keyfactor Platform6.4No—API, self-hosted, Web
16Smallstep ZTNA6.4No—iOS, Linux, Mac, self-hosted, Windows
17SSL.com Certificate Lifecycle Management6.4No—API, Web
18DigiCert Private CA6.3No—API, Linux, self-hosted, Web
19GlobalSign Atlas6.3No—API, Web
20Sectigo Certificate Manager6.2No$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 7.1 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 on what each maker publishes: documentation depth, a free tier and the platforms it runs on.