Let's Encrypt
PopularFree SSL/TLS Certificates
- Website
- letsencrypt.org
About Let's Encrypt
Let’s Encrypt is a nonprofit certificate authority that provides free TLS certificates to more than 700 million websites. It serves website operators who want to enable HTTPS with automated issuance, reducing friction and improving online security.
Key Features
For operators looking to encrypt traffic with minimal upkeep, the service centers on free, automatically managed TLS certificates and broad compatibility:
Free TLS Certificates
issuance of publicly trusted certificates at no cost for domains.
ACME Automation
automated issuance and renewal through ACME-compatible clients to minimize manual steps.
Documentation & Client Ecosystem
extensive documentation and a selection of recommended ACME clients to simplify integration.
Nonprofit Governance & Transparency
ISRG-operated organization with public reporting and sponsorships to maintain trust.
Summary
Best for website operators, small development teams, and IT/DevOps teams needing automated HTTPS for customer-facing sites.
