LE

lego

Let's Encrypt and ACME client written in Go

Reverse Proxy & Gateways ★ 9.8k stars Easy setup MIT

lego is an open-source ACME client and library for obtaining TLS certificates from Let's Encrypt and other ACME providers. It supports many DNS providers and is self-hosted for certificate automation.

Key features

  • ACME certificate client
  • 150+ DNS providers
  • Single binary
  • Usable as a library

Strengths

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • Mature project with 9.8k GitHub stars

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