Contest Calendar is a free Chrome extension developed by vinayaks0031ext that provides a comprehensive calendar of upcoming contests on popular competitive programming platforms such as Codeforces, Codechef, and Leetcode. With this extension, competitive programmers can easily plan their schedule for the month by getting an overview of all the upcoming contests.

By clicking on the extension icon, users can access a list of contests along with direct links to their respective portals. The extension also offers a "CpCalendar" option, which provides a full calendar view with additional features like the ability to add contests to your personal calendar and more.

The Contest Calendar extension keeps the contest data updated every hour, ensuring that users have the most accurate and up-to-date information. It currently supports major competitive programming platforms like Leetcode, Codechef, and Codeforces, with plans to add more platforms in the future. Stay on top of your competitive programming game with Contest Calendar.