Free AI Mastering Online

Yes. You can upload a track, hear a genuinely improved master, and pay exactly nothing for that part.

The catch is that the free export may randomly include a Michael Jackson hee hee. Free is free. Dignity costs extra.

Potentially, yes. Not because we lost a bet, but because the free version is meant to prove the mastering works while still giving you a very obvious reason to upgrade.

If chaos touches your export, that is the product working exactly as designed.

Because compute, storage, and engineering are somehow not paid for with vibes.

The free version now gives you the full mastered download too, but the random hee hee keeps it very obviously in free mode. If you want a clean and predictable release-ready export, that still lives in the paid product that helps us keep building the thing.

It is a real mastering flow. Your track still gets tonal shaping, loudness treatment, and overall polish.

The joke is in the export behavior, not in the mastering engine. The engine is doing actual work. We are just being petty about the free ending.

You can do whatever you want, but if the random hee hee shows up in the middle of your release, that becomes your artistic decision, not ours.

Use full SoundBoost for releases, label deliveries, client work, or anything you want people to take seriously.

It is great for demos, mix checks, before-and-after tests, private shares, and proving to yourself that your track sounds better mastered.

If you want the clean master for distribution, buy the proper version and support the machine that is currently threatening your chorus with a hee hee.

AI mastering is the process of analyzing a mix and applying mastering moves such as tonal balance adjustments, loudness control, dynamics shaping, stereo image decisions, and true-peak protection with software instead of a fully manual chain.

SoundBoost also brings prompt to mastering into the process, so you can describe what you want in plain language, like asking for more punch, more warmth, smoother vocals, or a wider chorus, and the mastering engine steers its decisions around that direction instead of treating every song the same way.

The 30-second picker helps you choose the most revealing part of the song, usually the chorus, drop, or busiest section, so the free mastering flow can anchor itself around the part that matters most.

It is not there to limit you to a 30-second result. It is there to keep the process focused on the section listeners will actually remember before the full mastered download is generated.

The engine looks at things that matter in mastering: loudness, tonal balance, punch, width, and overall dynamics, while also keeping an eye on issues like harshness, imbalance, and true-peak behavior.

Inside the full SoundBoost suite, that same foundation expands into prompt-driven changes, reference mastering, engineer profiles, and revision controls for more deliberate final decisions.

You can upload MP3, WAV, AIFF, AAC, FLAC, ALAC, OGG. If you have a choice, use the cleanest source file you have.

Lossless files usually give any mastering engine more to work with, but a strong MP3 or AAC can still be perfectly fine for testing and demo use.

You can start as a guest. The page is designed for quick uploads so you can hear a master without turning the first step into paperwork.

If you want to keep going with a clean export or a deeper suite workflow, that is where the broader SoundBoost experience comes in.

Bring a balanced mix, avoid clipping on the master bus, and leave enough headroom so the mastering engine has room to move instead of fighting a brick wall you already built.

Use the highest-quality bounce available, and avoid over-limiting or over-processing the stereo bus unless that sound is a deliberate part of the record.