A simple ACMEv2 client for Windows (for use with Let's Encrypt et al.)


This is a ACMEv2 client for Windows that aims to be very simple to start with, but powerful enough to grow into almost every scenario.

  • A very simple text driven interface to create and install certificates for a local IIS server
  • A more advanced text driven interface for many other use cases
  • Automatically creates a scheduled task renew certificates when needed
  • Supports wildcards, OCSP Must Staple and ECDSA keys
  • Advanced validation via SFTP/FTPS, WebDav, acme-dns, Azure, Route53 and more
  • Supports completely unattended operation from the command line
  • Supports other forms of automation through manipulation of .json files
  • Write your own Powershell .ps1 scripts to handle custom installation and validation
  • Build your own plugins with C# and make the program do exactly what you want



Getting started

Download the .zip file from the download menu, unpack it to a location on your hard disk and run wacs.exe. If you require assistance please check the manual first before looking for support.