Eboj is a free Chrome browser add-on developed by fienestar that aims to enhance the user experience on the Baekjoon Online Judge platform. With Eboj, users can enjoy additional features that make solving programming problems on Baekjoon even more convenient and efficient.

One of the main features of Eboj is the addition of a "View Tier" button. This button, located next to the problem title, allows users to easily view the tier of a problem. Whether you are logged in or not, you can now quickly check the tier of a problem without any hassle. This feature is especially useful for users who want to challenge themselves with higher-tier problems or simply want to know the difficulty level of a problem.

Another noteworthy feature of Eboj is the integration of the "Like" button. By clicking on the like icon, users can now utilize the existing like functionality. The previous like button has been removed and instead, problems that have been liked will be highlighted in blue, making it easier for users to keep track of their preferred problems.

Overall, Eboj is a valuable add-on for Baekjoon Online Judge users who want to enhance their experience on the platform. It provides convenient access to problem tiers and simplifies the liking functionality, making problem-solving even more enjoyable.