A pure Unix shell script ACME client for SSL / TLS certificate automation
Certificate automation
Request and renew TLS certificates over ACME from Let's Encrypt or another ACME authority.
Changes in this category (RSS)
Side by side
| Tool | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|
| acme.sh | 48k | GPL-3.0 | Open source | No | Shell | 3.1.6 | 2026-10-03 |
| Certbot | 33k | Other | Open source | No | Python | v5.8.0 | 2026-10-02 |
| cert-manager | 14k | Apache-2.0 | Open source | No | Go | v1.21.2 | 2026-10-05 |
| lego | 9.9k | MIT | Open source | No | Go | v5.5.2 | 2026-10-05 |
| Certimate | 9.3k | MIT | Open source | No | Go | v0.4.34 | 2026-10-04 |
| win-acme | 5.8k | Apache-2.0 | Open source | No | C# | v2.2.9.1701 | 2026-06-09 |
6 tools
Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.
Automatically provision and manage TLS certificates in Kubernetes
- Language
- Go
- Licence
- Apache-2.0
- Stars
- 14k
- Latest
- v1.21.2
- Last push
- 2026-10-05
Let's Encrypt/ACME client and library written in Go
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 SSL 证书 ACME 工具，申请、部署、续期、监控全流程自动化可视化，支持各大主流云厂商。
Automate SSL/TLS certificates on Windows with ease
- Language
- C#
- Licence
- Apache-2.0
- Stars
- 5.8k
- Latest
- v2.2.9.1701
- Last push
- 2026-06-09