Free · No signup · No watermark
AI Music Mastering
Upload a track and the AI masters it in about 60 seconds — it reads the genre, fixes the loudness, cleans up the EQ, and hands back a streaming-ready master. The same job a mastering engineer charges $50–$200 for, free.
What AI mastering actually does: the quiet, uneven track on the left becomes the loud, controlled master on the right — without clipping, because the limiter holds a -1 dBTP ceiling the whole way.
How to master music with AI
Upload your track
Drop a WAV, MP3, or FLAC — ideally the cleanest export you have, straight from your DAW, Suno, or Udio.
The AI does its analysis
It measures loudness, dynamics, frequency balance, genre, BPM, and key — then builds a mastering chain to match.
Download your master
About a minute later: a 24-bit WAV and a 320 kbps MP3 at the exact loudness your platform wants.
The right loudness for every platform
Every streaming service normalizes loudness differently, and getting it wrong costs you punch. Master too loud for Spotify and it just gets turned down — you lose dynamics for nothing. Pick your platform and the AI hits its exact target: LUFS, true peak, the lot.
-14
LUFS · Spotify
-16
LUFS · Apple Music
-10
LUFS · TikTok
-9
LUFS · Beatport
EQ that knows what your genre needs
A trap master and a jazz master are different jobs. The engine detects your genre and applies the right moves — tighten the low end, cut the mud around 300 Hz, lift vocal presence, add air — instead of one generic curve slapped on everything.
Tuned for Suno, Udio, and every AI generator
AI-generated tracks come out quieter than commercial music, with a fizzy high-mid edge and a loose low end. This engine was built around those exact artifacts — it lifts the level, tames the harshness, and tightens the bass, so your AI song stands next to anything on a playlist.
Your track stays yours
Processed, delivered, deleted. No account tying your music to an email, no library we keep, no training on your audio.
No paywall at the download button
Most online mastering services let you preview free, then charge to download. Here the 24-bit WAV and the 320 kbps MP3 are both free, every time, with no watermark and no track limit. Master one song or a whole album.
AI music mastering, answered
What is AI music mastering?
AI music mastering is the final polish on a song, done by software instead of a mastering engineer. The AI listens to your track, works out what it needs — more loudness, less mud, tighter low end, a safe peak ceiling — and applies a mastering chain tuned to your genre. What used to cost $50–$200 per song at a studio now takes about a minute and costs nothing here.
Is this really free? What's the catch?
It's actually free. No account, no watermark, no trial that expires, no locked download behind a paywall. Your file is processed, delivered, and deleted right after. We built the tool to be useful first, and the site earns its keep through the audience it brings — not by charging you at the download button.
How does the AI know what my song needs?
Before touching anything, the engine measures your track: integrated loudness (LUFS), true peak, dynamic range, frequency balance, stereo width, genre, BPM, and key. It then compares those numbers against what commercial releases in your genre look like and applies just the difference. A quiet lo-fi track and a slamming trap beat get completely different treatment.
What loudness should my master hit for Spotify?
-14 LUFS integrated with a -1 dBTP true-peak ceiling for Spotify, YouTube, and Tidal. Apple Music prefers -16 LUFS. TikTok and SoundCloud reward louder masters, around -9 to -11 LUFS. Pick your platform on the tool and it sets the target automatically — going louder than the platform's target just gets your track turned down, and you lose punch for nothing.
How is this different from LANDR or eMastered?
The core idea is the same — AI-driven mastering — but LANDR and eMastered charge per track or per month, and most lock the download behind a subscription. MixMasterAI is free with no account. We also tune specifically for AI-generated music: the engine knows the artifacts Suno and Udio leave behind (the metallic sheen, the loose low end) and cleans them up, which general-purpose services don't do.
Does it work on Suno and Udio songs?
Yes — that's actually where this engine is strongest. AI-generated tracks usually come out quieter than commercial music with a fizzy high-mid edge and an untidy low end. The mastering chain detects those AI fingerprints and fixes them along with the loudness. If your track has heavy clipping or a harsh metallic ring, run it through the Suno Audio Fixer first, then master.
Will mastering fix a bad mix?
Honestly, no — and anyone who tells you otherwise is selling something. Mastering makes a good mix sound finished and competitive. It can't un-bury vocals, fix timing, or rebalance instruments against each other. If the mix has real problems, fix those first (the AI Mix Auditor will point at what's wrong), then master.
Master for your platform and genre
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Free AI music mastering, streaming-ready in about a minute. No account, no watermark, no catch.
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Supports WAV · FLAC · MP3 · M4A · AIFF