Have Read is a free Chrome add-on designed to help users keep track of which posts they have read across various platforms. It supports popular sites such as Twitter, v2ex, and HackNews, allowing users to easily mark posts as read or unread, enhancing their browsing experience and organization.

The tool is straightforward to use, integrating seamlessly into the Chrome browser. Users can quickly toggle the read status of posts, ensuring they can efficiently manage their reading list without losing track of important content. This add-on is particularly beneficial for those who frequently engage with large volumes of online articles and social media posts.