What is Let's Encrypt?

Let's Encrypt provides encryption for everybody. A nonprofit Certificate Authority brought to you by the Internet Security Research Group (ISRG). Free TLS certificates to more than 700 million websites. 6-day and IP address certificates now generally available. 10 years of Let's Encrypt certificates celebrated. Global impact made possible by generosity. Leading through sponsorship from major technology companies. Automate certificate issuance and renewal with ACME protocol.

Key Features

✓Free TLS certificates
✓Automated issuance
✓ACME protocol
✓90-day certificates
✓6-day certificates
✓IP address certs
✓Wildcard support
✓700M+ websites
✓Nonprofit CA
✓10+ years running
✓Global infrastructure
✓Major sponsor support

🔒 Privacy & Data Protection

Let's Encrypt is a nonprofit focused on security and privacy for all. No commercial interests in user data. ISRG also runs Prossimo (memory-safe code) and Divvi Up (privacy-preserving metrics). For everyone wanting free HTTPS, Let's Encrypt democratized web security.

Best For

Website HTTPSAutomated certificatesFree TLSDevOps automationWeb securityAPI encryption

💰 Pricing

Let's Encrypt certificates are completely free. Donations support the nonprofit mission.

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