* [External Secrets v2.9.0](https://github.com/external-secrets/external-secrets) – Kubernetes operator that integrates external secret management systems and automatically injects values into Kubernetes Secrets.

* [Sealed Secrets helm-v2.19.3](https://github.com/bitnami/sealed-secrets) – A Kubernetes controller and tool that encrypts Secrets into one-way SealedSecrets, decryptable only by the target cluster controller.

* [Vault Secrets Operator v1.5.1](https://github.com/hashicorp/vault-secrets-operator) – Operator that synchronizes Vault secrets to Kubernetes Secrets for native consumption by Pods.