WebFilter is a free Chrome extension developed by Jan Pecha. As an add-on in the Browsers category, WebFilter allows users to block specific websites using a categorical blacklist of URLs. With this extension, users can take control of their browsing habits and increase productivity.

One of the main features of WebFilter is the ability to block websites from seven different categories. Users can choose from categories such as Social networks, Messaging and chats, Videos and streaming, Online games, Mixed content, Dating sites, and Adult content. By selecting the categories that are most distracting, users can effectively limit their access to time-consuming websites.

In addition to the categorical blacklist, WebFilter also offers an optional time lock feature. This allows users to set specific time periods during which certain websites are blocked, further enhancing productivity and preventing procrastination.

Overall, WebFilter is a useful tool for those looking to stay focused and avoid distractions while using the Chrome browser. By blocking specific websites and utilizing the time lock feature, users can boost their productivity and maintain a more efficient workflow.