Vault by HashiCorp - Tool for managing secrets
OpenXPKI - OpenXPKI is a software stack that provides all necessary components to manage keys and certificates...
Onboardbase - Onboardbase enables teams to collaboratively work, store, manage and share secrets like environment variables, passwords, credit cards across your team effectively and securely.
Dogtag PKI - The Dogtag Certificate System is an enterprise-class open source Certificate Authority (CA).
Doppler - Doppler is the multi-cloud SecretOps Platform developers and security teams trust to provide secrets management at enterprise scale.
VAULT - A password manager for freelancers, developers, agencies, IT departments and teams. VAULT safely stores account information and makes it easy to share between co-workers, other team members and clients.