LeekCF Ratings is an open-source browser extension that displays rating information for Codeforces problems even when their tags are hidden. It is intended for competitive programmers who use Codeforces for practice and problem selection.
In the Browser DevTools & extensions space, LeekCF Rating takes a focused approach. It focuses on finding Codeforces problem difficulty ratings when problem tags are hidden or unavailable. LeekCF Rating is an open-source project aimed at competitive programmers using Codeforces. LeekCF Rating is open source under the Open Source license. It ships for the web and embeddable surfaces.
Behind LeekCF Rating is ahmadsh2007, and it first shipped in 2026. Key capabilities include problem ratings, hidden-tag support, and chrome extension.
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