NEW: Get project updates onTwitterandMastodon

Cloud native certificate management

X.509 certificate management for Kubernetes and OpenShift

9000+ GitHub Stars

6000+ Slack members

1 million+ daily downloads

Cert Manager
cert manager

cert-manager is a powerful and extensible X.509 certificate controller for Kubernetes and OpenShift workloads. It will obtain certificates from a variety of Issuers, both popular public Issuers as well as private Issuers, and ensure the certificates are valid and up-to-date, and will attempt to renew certificates at a configured time before expiry.

cloud native computing foundation logo

cert-manager was created by It was proudly  donated  to CNCF in 2020.

Key Features

feature icon

Automated issuance and renewal of certificates to secure Ingress with TLS

feature icon

Fully integrated Issuers from recognised public and private Certificate Authorities

feature icon

Secure pod-to pod communication with mTLS using private PKI Issuers

feature icon

Supports certificate use cases for web facing and internal workloads

feature icon

Open source add-ons for enhanced cloud native service mesh security

feature icon

Backed by major cloud service providers and distributions