Songmastr

Songmastr is an AI-powered online tool designed for musicians, producers, and audio engineers who want to automatically master their own audio tracks by referencing a song of their choosing. Users upload a WAV or MP3 file along with a reference track, and Songmastr processes the audio to deliver a professionally mastered version with matching loudness, EQ, and other characteristics. No software or registration is required, and the service is free for up to 7 songs per week.