Let’s Encrypt

letsencrypt.org ↗

Open sourceSelf-hostable

Free, automated, and open Certificate Authority.

Visit website ↗

CategorySSL

PricingFree, open source

Self-hostableYes

Alternatives to Let’s Encrypt

Open source alternatives

Automate using Let’s Encrypt certificates on manually-managed websites to enable HTTPS.

Cert Manager★ 14k

K8S add-on to automate the management and issuance of TLS certificates from various issuing sources.