Certbot

ACME client for Let's Encrypt

82
Project is healthy
Funding
Stable
Maintenance
Active
Contributors
Healthy
Bus Factor
Medium risk
Metrics last updated: 6 days ago (2026-02-07)

Overview

Certbot is a free, open-source software tool for automatically using Let’s Encrypt certificates to enable HTTPS on websites.

Importance

  • Most popular ACME client
  • Powers automated certificate management
  • Foundation for easy HTTPS deployment
  • Critical for secure websites

Key Features

  • Automated certificate issuance
  • Web server plugins (Apache, Nginx)
  • Automatic renewal
  • Wildcard support

Sustainability

Certbot is developed by EFF with limited resources. Despite its importance for web security, funding is constrained.

Dependencies

Certbot
unknown

Dependency Chain

Upstream
OpenSSL Python Linux Kernel
Certbot

Impact Analysis

3 Direct Dependencies
0 Dependent Projects
🔝 Top-level project