Hi Product Hunt, I'm the maker of MasteringKit.

I make music, and the last step before release is always the same: is this mix actually ready to put next to everything else on a playlist? Most online mastering tools ask for an account or a credit card before you hear anything. I wanted to hear it first.

So MasteringKit is free to try: no signup, no credit card. Drop in a stereo mix and about a minute later you hear it mastered.

What you can do while you listen:

11 controls, an intensity setting and a 6-band EQ
6 engineer styles (Avery, Rio, June, Theo, Nova, Sol), each a different starting point
Write a sentence like "warmer, less harsh highs" and get a new version with a note on what changed
Every change is a new version, so you can flip between them while the track plays

Uploads can be WAV, MP3, FLAC, AIFF, M4A or OGG up to 1.5 GB and 22:30. Full-track downloads are 24-bit WAV and 320 kbps MP3.

Also free in the browser, nothing uploaded: a LUFS meter, a streaming loudness penalty checker and a BPM and key finder.

It's one day old. I'd love to hear where the first minute is confusing, and what you'd want the controls to do that they don't.

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#免费试用 #无需注册 #无需信用卡 #AIマスタリング #無料お試し #登録不要 #AI마스터링 #무료체험 #가입불필요