blkwrk is a Chrome extension designed for users seeking to enhance their online focus by blocking distracting URLs. This free tool allows users to add specific URLs to a blocklist, preventing access to these sites when revisited. The innovative feature of this extension lies in its manual unblocking process, which requires users to type out a predetermined number of characters to remove a site from the blocklist. This method is intended to discourage impulsive unblocking and promote self-discipline while browsing the web.

With its user-friendly interface, blkwrk displays the number of characters remaining to type for unblocking, helping users stay aware of their progress. The flexibility of allowing any character, including letters, numbers, and special characters, adds to its versatility. By implementing this extension, users can effectively manage their online distractions and maintain productivity.