Online mastering, without the guesswork

Online mastering means uploading a track and getting a release-ready file back, with no studio booking and no waiting on anyone's schedule. Most services ask you to pay before you hear the result. This one works the other way round. You upload, get a free analysis of your mix, master the track, and listen to the finished thing in full before any money is involved.

What it costs

There is no subscription and no account. The analysis is free. Mastering your track and listening to the result is free. If you want the file, it is $4.99 for that song, paid once. Vocal Pass ($1.99) and Stems Pack ($3.99) are separate per-song add-ons if you need them.

Most online mastering runs on monthly plans. That works well if you release constantly. If you have one song to finish, you end up paying for months you never use.

How long it takes

Most tracks finish in under a minute. Uploads go through a processing queue that shows real progress instead of an unexplained wait, and the result is ready to play as soon as it lands. Nothing is stored long term: your file is deleted after processing.

How to judge an online master

This is the part most people get wrong. A louder file almost always sounds better for the first few seconds, which makes an ordinary A/B comparison close to useless. Every comparison here is loudness-matched, so when you switch between your original and the master you are judging tone, punch and clarity rather than volume. There is also a Listen like Spotify mode that plays both versions at the level streaming will actually deliver, which is often a surprise.

You can change what it did

The mastering chain is built from what the analysis found in your mix rather than from a preset, and you get told what changed and what was deliberately left alone. If you disagree with a decision, adjust it. Loudness target, compression and EQ are all yours to move, and you can re-compare after every change.

Where it fits

For a single track heading to Spotify, SoundCloud or Bandcamp, this gets you a loudness-correct, competitive master quickly and tells you what it did to get there. A skilled mastering engineer brings taste and context that software does not have, and on a flagship release that is worth paying for. What you get here is an honest read on your mix, a master built from it, and the chance to hear the whole thing before you decide.

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