Leetblock is a Chrome extension designed to enhance the user experience on the Leetcode platform by allowing users to block unwanted individuals. This tool is particularly effective against bots, spammers, and self-promoters, ensuring that users can focus on relevant discussions without distractions. The extension adds "Block" buttons to every comment and reply, enabling a straightforward blocking process.

Users can also manually block individuals by entering their usernames into the extension's popup interface. Unblocking is equally simple, with options to remove specific users or clear the entire block list with a single click. This functionality provides users with greater control over their interactions on Leetcode, fostering a more productive environment for problem-solving and discussion.