MelodicX is a free Turkish music quiz platform where players identify songs by listening to short audio clips, beginning with just half a second of music. Its library contains more than 28,000 tracks across 21 main categories and over 80 subcategories, spanning Turkish, global, and world music. Players can explore curated Deezer-supported playlists, add their own playlists, or try selections shared by the MelodicX community. As guesses are missed or skipped, each clip gradually becomes longer, offering further chances to recognize the song.

The platform offers several ways to play, including a daily challenge, an unlimited mode, category-based quizzes, and a fan test with a leaderboard. Streamers can use a dedicated Twitch and Kick mode, where viewers guess songs directly in chat without requiring the streamer to sign in. MelodicX also features mini-games that challenge players to identify artists from childhood photos or guess songs from emoji clues. Built independently by a solo developer, the service is available without registration, pop-up advertisements, or data tracking.