This online service lets you create .xml and .cip Code Integrity (CI) policy files for Windows Defender Application Control (WDAC). Such policies facilitate whitelisting or blacklisting of applications and drivers and are hence a powerful mechanism to protect your Windows PC from malware. WDAC policies are effective on all editions of Windows 10 and 11, including Home and Pro.
Unlike with Microsoft's WDAC Policy Wizard, you do not need to install any software on your computer. Simply download the generated .cip file, place it in the C:\Windows\System32\CodeIntegrity\CiPolicies\Active\ folder and restart your computer. You can also download the corresponding .xml file and augment it further, and you can cryptographically sign your policy to make it tamper-resistant.