Infisical is an open-source platform to manage and deliver app secrets, certificates (PKI), SSH credentials, and encryption keys across teams and infrastructure.

29k stars2.2k forkslast commit Actively maintained
Cloud-based certificate lifecycle management for discovering, issuing, renewing and governing TLS/SSL certificates and PKI across on‑premises and cloud environments. Automates issuance and renewal, inventory, policy enforcement and compliance reporting.
Infisical is an open-source platform to manage and deliver app secrets, certificates (PKI), SSH credentials, and encryption keys across teams and infrastructure.

29k stars2.2k forkslast commit Actively maintained
step-ca is a private CA and ACME server for issuing and automating X.509 TLS and SSH certificates, enabling short-lived credentials and secure enrollment for teams.

8.8k stars580 forksApache-2.0last commit Actively maintained
Self-hosted web app to generate, manage and distribute mTLS client and server certificates with OIDC auth, email alerts and a REST API.
876 stars43 forksGPL-3.0last commit Actively maintained
Open-source centralized ACME client to manage TLS certificates with automated renewals, API-key retrieval for clients, http-01/dns-01 challenge support, Go backend and React UI.

602 stars25 forkslast commit Actively maintained
Web-based UI for mkcert to generate, download, and monitor locally-trusted development TLS/SSL certificates with SCEP, authentication, Docker deployment, and email alerts.
222 stars12 forksGPL-3.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 5 of 5 shipped a commit in the last six months. Licences in this list: Apache-2.0, GPL-3.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Certificates, PKI & TLS Automation.