Simplewall is a rule-based firewall controller for Windows that enhances the Windows Filtering Platform (WFP) without replacing it. It allows users to manage network access for applications and services with a user-friendly interface, supporting advanced features like filtering rules by IP, port, or protocol. Users can create tailored profiles for different scenarios and have comprehensive control over network interactions, including blocking telemetry data and automatic updates. Simplewall is lightweight, portable, and operates without background processes or telemetry, ensuring a straightforward user experience. Setting up simplewall involves downloading it, extracting the files, and enabling filters, allowing users to establish a functional firewall profile quickly. While it offers many advantages, such as being open-source and compatible with older Windows versions, it may be overwhelming for beginners and lacks detailed app profiling compared to premium firewalls.