PeerBlock is a Windows application that prevents unsecured locations from accessing your computer, in order to protect your private data. You can block personal lists of sites, as well as use frequently updated lists of host addresses.

Configuration

Upon launch, you are able to use a configuration wizard to specify the types of ranges you want to block. These can be either peer-to-peer organizations, advertisements, spyware or educational institutions.

Alternatively, you have the option to import or create custom lists. It is also possible to allow the computer to connect via port 80 and 443, even if they are blacklisted. In the last step, you may enable the program to check for updates to PeerBlock, lists, or both. You can toggle this procedure to be done on a regular basis.

Informative design

The main software window shows the time, range and source, as well as destination and protocol for each connection. This tool gives you the option to enable and disable PeerBlock status with a simple click of a button.

Additionally, you can view a history list or clear the log file. You are also able to make the application run automatically at Windows startup and launch minimized in the system tray area.

Summary

The tool needs a very low amount of CPU and computer memory. Moreover, it features an intuitive interface that both professional and novice PC users can quickly learn how to utilize its main functions. To better protect your privacy online, you may also use virtual private network clients like ProtonVPN.

Features

free to download and use;
compatible with modern Windows versions;
gives you the ability to block access to various websites;
can create and import custom lists;
it is possible to view detailed information about connections.