* [Lego v4.32.0](https://github.com/go-acme/lego) – Let's Encrypt client and ACME library written in Go.

* [cert-manager v1.20.0](https://github.com/cert-manager/cert-manager) – Tool for managing and automating TLS certificates in Kubernetes clusters.

* [Pangolin 1.16.0](https://github.com/fosrl/pangolin) – Self-hosted tunneled reverse proxy server with identity and access control for secure remote access to private networks.

* [GoDoxy v0.27.0](https://github.com/yusing/godoxy) – Lightweight, simple, performant reverse proxy with Web UI.

* [eggsampler/acme v3.8.0](https://github.com/eggsampler/acme) – Go client library implementing RFC8555 (ACME v2) for interacting with ACME certificate authorities.

* [Acmesmith v2.9.0](https://github.com/sorah/acmesmith) – ACME v2 client designed for multi-server environments with cloud-based certificate and key management.

* [CertMagic v0.25.2](https://github.com/caddyserver/certmagic) – Powerful library for automated TLS certificate management in Go applications.

* [Pebble v2.10.0](https://github.com/letsencrypt/pebble) – Miniature Boulder-based RFC 8555 ACME test server intended for testing, not production.