Open source acme projects
Every project in the registry tagged acme, ranked by real GitHub adoption.
Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
Secure secret management for modern development teams
An open-source and free self-hosted SSL certificates ACME tool, automates the full-cycle of issuance, deployment, renewal, and monitoring visually. 完全开源免费的自托管 S
🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.
Automatically create and renew website certificates for free using the Let's Encrypt certificate authority.
Related tags
Frequently asked questions
How many open source acme projects are there?
This registry tracks 5 projects tagged acme, with 124,543 GitHub stars between them. The most-adopted is caddy at 75,840 stars.
Are these acme projects free to use?
Yes — 4 of the 5 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which acme project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these acme projects still maintained?
5 of the 5 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.