Upload your stereo mix. AI masters it to Spotify, Apple Music, TikTok, or 9 more platforms. Download WAV or MP3. Free, no login, no watermark.
These two words get used interchangeably but they're distinct stages. Understanding them helps you get better results from any tool.
Mixing
Mixing works on individual tracks within a session — balancing the volume of the kick vs. the snare, carving EQ space for each instrument, placing elements in the stereo field, adding reverb and effects. Mixing happens before you have a single stereo file.
Input: multi-track session (stems) · Output: stereo mix
Mastering
Mastering works on the final stereo mix — applying subtle EQ, compression, limiting, and loudness normalization so the track sounds professional on every playback system and meets streaming platform specs. This is what MixMasterAI does.
Input: stereo mix (MP3/WAV) · Output: streaming-ready master
AI music generators like Suno and Udio output a stereo mix — so what you need is mastering, not mixing. Upload your Suno or Udio track above and the AI will master it to your target platform.