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acme.sh

ACME shell script for Let's Encrypt automation

3.9(71 reviews)free
free tieropen source

Integrates with

acme.sh is a pure shell ACME client for automating SSL certificates from Let's Encrypt, ZeroSSL, and other ACME-compatible CAs. Lightweight and works on any Unix system.

Pros

  • Works on any Unix/Linux — no dependencies
  • Supports DNS API for wildcard certs
  • Multiple ACME CAs supported

Cons

  • Shell script — less features than Certbot
  • Manual configuration

Best For

Linux sysadmins who want a lightweight ACME client that works on minimal systems without Python

Pricing

Free Forever

Free
  • Core features included

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