OpenXPKI
OpenXPKI: A flexible open-source choice for teams building and operating PKI workflows. Ranked #16 of 31 in Certificate Management Software by our editors (7.7/10); pricing: Free plan; best for open-source teams implementing flexible PKI workflows.
At a glance
- Editor score7.7 / 10
- PricingFree plan
- Best forOpen-source teams implementing flexible PKI workflows
- Free planYes
- Paid fromFree
- Founded2009
- Facts checked20 Sep 2026
Where it wins
- Free, fully functional Community Edition with open-source access
- Supports SCEP, EST, SimpleCMC, ACME, APIs, and multiple PKI realms
- Connects with external CAs, HSMs, SSO systems, CMDB, and ITSM tools
Where it doesn't
- Self-hosted deployment requires internal infrastructure and administration
- Commercial support and some integrations are part of Enterprise Edition
- Broad PKI configuration may be more than smaller teams need
Our verdict on OpenXPKI
OpenXPKI is open-source PKI and trustcenter software for managing X.509v3 certificates. It is aimed at teams that need structured certificate request, renewal, revocation, enrollment, and reporting workflows while retaining control over deployment. The platform supports web access, Linux, APIs, and self-hosted operation. Its Community Edition is fully functional and free, while Enterprise Edition adds commercial support, external CA adapters, ITSM integration, multi-tenancy, and additional services for professional PKI environments.
The main strength is the depth of its PKI workflow coverage. OpenXPKI supports automated enrollment through SCEP, EST, SimpleCMC, and ACME, plus a REST-like API with OpenAPI support. Teams can manage multiple PKI realms and issuing CAs, automate CA-generation rollover, and use configurable reporting with certificate-status alerting. Hardware Security Module support is available through PKCS#11, giving organizations a path to integrate protected key-management infrastructure. These capabilities suit teams with varied certificate authorities, enrollment protocols, or trust domains rather than organizations seeking only basic certificate tracking.
Its ecosystem fit is also broad. External CA integrations include DigiCert, Sectigo, and SwissSign, while SAML, OAuth, LDAP, and web-server SSO integrations support identity and access workflows. CMDB and ITSM connectivity is available, with ITSM integration specifically listed among Enterprise Edition additions. OpenXPKI is a strong pick for technically capable, open-source teams that can manage a self-hosted PKI environment and need flexible workflows. Smaller teams wanting a simpler managed service, or organizations that require commercial support and multi-tenancy, should consider the Enterprise Edition or an alternative aligned with those operating preferences.
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OpenXPKI pricing
OpenXPKI fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Certificate discovery | Not verified |
| Automatic renewal | Yes |
| Deployment automation | Yes |
| Revocation workflows | Yes |
| Certificate types | Not verified |
| CA integrations | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Linux |
| Compliance & security | GDPR, SSO/SAML |
| Support | Community, Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 12 integrations: SCEP, EST, SimpleCMC, ACME, DigiCert, Sectigo … |
| Pricing | Free plan |
| Website | openxpki.org |
| Facts checked | 20 Sep 2026 |
OpenXPKI integrations
OpenXPKI lists 12 integrations on its own site.
- SCEP
- EST
- SimpleCMC
- ACME
- DigiCert
- Sectigo
- SwissSign
- SAML
- OAuth
- LDAP
- CMDB
- ITSM
Alternatives to OpenXPKI
- DigiCert Trust Lifecycle ManagerA broad certificate governance platform for hybrid infrastructure and enterprise PKI.9.4
- DigiCert ONEFull certificate lifecycle control for large organizations managing diverse trust environments.9.3
- Keyfactor PlatformA broad certificate lifecycle platform for hybrid enterprise environments.9.1
See all OpenXPKI alternatives →
Also Ranked In
OpenXPKI is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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