* [X.509 Certificate Exporter v4.2.0](https://github.com/enix/x509-certificate-exporter) – Prometheus exporter for monitoring X.509 certificate expiration in Kubernetes clusters or standalone.

* [mkcert Web UI v4.3.3](https://github.com/jeffcaldwellca/mkcertWeb) – Web-based interface for managing mkcert CLI internal CA and generating downloadable local development SSL certificates.

* [VaultCertsViewer 1.9](https://github.com/julienhmmt/vcv) – Lightweight web UI that lists and inspects certificates from one or more HashiCorp Vault or OpenBao PKI mounts, highlighting expiration details and SANs.