EQ · compressor · limiter

Light mastering

EQ, compressor, reverb, saturation and limiter in a row. Leave the detail to a preset, and export at the loudness streaming plays back at.

EQCOMPRESSORREVERBSATURATIONLIMITER

Choose a track

Drag & drop the track you want to finish

or click to choose

MP3, WAV, M4A, AAC, FLAC, OGG, Opus, AIFF and more — plus the audio of MP4, MOV, WebM and other video

What Glaze does

Lands where streaming plays

The services normalise loudness on playback. Export to that target and your track is neither quiet next to everything else nor squashed for nothing.

A fair comparison

Hold "hear the original" and you get the untouched file. It is there so you judge the change rather than the volume — louder always sounds better for the first few seconds.

Numbers that were measured

The loudness and the peak come from analysing the exported audio with BS.1770, not from working backwards out of the settings.

What the controls mean

LUFS (loudness)Loudness measured the way hearing works rather than by raw level. Streaming services play back at roughly -14 LUFS, so a master made louder than that is simply turned down again.
True peakThe real maximum, including what happens between samples. A file pushed to exactly 0 dB will exceed it the moment an encoder touches it, which is why the ceiling here defaults to -1 dBTP.
EQ (low, mid, high)Level per band. Mastering moves live inside about ±3 dB; needing more than that is a sign the fix belongs back in the mix.
Dynamics (threshold, amount)Holds the loudest parts down so the rest can come up. A lower threshold catches more of the track; a higher amount holds it harder.
Space (reverb)A short tail for depth. On a master this is seasoning — too much and the edges of everything go soft.
SaturationRounds the corners off peaks. It buys loudness at the same measured level without the brittleness that hard limiting alone produces.

Frequently asked questions

Is my audio uploaded?

No. Reading, processing and exporting all happen inside your browser, and the audio is never sent anywhere.

Does this replace a mastering engineer?

It does not. Mastering is someone deciding with their ears; Glaze applies a fixed chain and matches a loudness target. Use it to tidy a track before release, or to make a set of demos sit at the same level.

Which preset should I pick?

Clear Coat if you are unsure — it tidies without changing the character. From there: Warm Wax if it sounds harsh, Bright Polish if it sounds dull, Deep Gloss if it lacks weight, Wide Sheen if it sounds flat.

What target loudness should I use?

About -14 LUFS for streaming. Louder targets of -9 to -12 exist for playback at volume, but you spend dynamic range to get there.

Why does exporting take a moment?

Loudness can only be known by measuring the output, so the track is rendered once to measure it and again with the difference applied. Predicting the figure from the settings would be faster and would not be a measurement.

Which formats are supported?

MP3, WAV, M4A, AAC, FLAC, OGG and Opus, plus the audio track of video files. Exports are WAV or MP3.