How to Master for YouTube

The short version of how to master for YouTube: aim for about -14 LUFS integrated with true peak at or below -1 dBTP, then confirm both numbers in a free volume normalizer before you upload. That is the whole target. Everything after this is about hitting those two numbers cleanly, and — just as important — not squashing your mix to chase a loudness that YouTube is only going to turn back down.

This is a pre-upload check for a file you already have — the audio bounce for your video, a music track, or a near-final master. It takes a couple of minutes, runs in your browser, and your audio never leaves your device.

The two numbers to master for YouTube

YouTube plays every upload through loudness normalization. It measures the integrated loudness of your audio and, if the track is louder than roughly -14 LUFS, turns it down on playback so it sits at a consistent level next to every other video. If your audio is quieter than that, YouTube leaves it alone — it does not turn quiet uploads up. So past a point, the playback loudness of your video is not something you control on the viewer's end. That one fact should change how you master. If the unit is new to you, what LUFS you should master to has the per-service targets in one place.

The second number is a ceiling, not a target: true peak at or below -1 dBTP. True peak (dBTP) catches the inter-sample peaks a normal sample-peak meter misses. YouTube transcodes your upload to lossy codecs (AAC and Opus), and that encoding can add peaks that weren't in your original file — nudging a master that read -0.1 dBTP into audible clipping on playback. Leaving a decibel of headroom absorbs that. What true peak (dBTP) is explains why it differs from the sample peak your DAW usually shows.

What you'll need

• Your audio as a file you already have (WAV or FLAC is ideal — lossless in, lossless out).
• A modern browser. No account, no install, no upload.
• Two minutes to measure, adjust, and re-measure.

If you are uploading a video, master the audio to these targets first, then mux it into your video export. YouTube measures and normalizes the audio track regardless of the picture.

Steps

Mastering for YouTube is two jobs: shape tone and dynamics, then land the loudness and peak targets. Do them in that order.

1. Master tone and dynamics first (optional but recommended). If your file is a raw mix rather than a finished master, run it through the audio mastering tool to glue the mix, balance tone, and apply gentle limiting. This is where a real master gets its polish and controlled loudness — a normalizer alone can't do it. If you already have a master you're happy with, skip to step 2.

2. Open the volume normalizer and drop in your file. The free volume normalizer reads your file and shows a Before panel with its measured integrated LUFS and true peak (dBTP). That's your starting point — note both numbers.

3. Select the YouTube preset. In Loudness (LUFS) mode, click the YouTube target button. It sets the target to -14 LUFS. (Spotify is also -14 LUFS; Apple Music is -16.)

4. Keep Prevent clipping on. Leave the Prevent clipping (cap true peak at -1 dBTP) checkbox ticked. This stops the tool from pushing true peak above -1 dBTP even while it works toward the loudness target — the exact ceiling that keeps you clear of clipping after YouTube's transcode. If your master is already well above -14 LUFS, you can switch to Peak mode and set the slider to -2 dBTP for extra transcoding margin.

5. Preview and read the After panel. Click Preview after-LUFS. The After panel now shows the integrated LUFS and true peak your exported file will have. Confirm it lands near -14 LUFS with peak at or below -1 dBTP. The tool also displays the exact gain offset it applied, so you can see whether it turned the track up or down.

6. Export. Pick a format in the export selector — WAV (lossless, the safe default) is ideal for delivery; MP3, FLAC, M4A, and Opus are also available — and click Export WAV. Use that file as the audio for your video, or upload it directly for a music track. YouTube handles normalization from there.

For why the platform does this at all, how streaming loudness normalization works covers the full picture across services.

How to check what YouTube actually did

You don't have to guess whether YouTube turned your video down. After it finishes processing, play the video, right-click the picture, and open Stats for nerds. The Content loudness line shows how far your upload sat from YouTube's target and how much it was adjusted — a reading of a few dB means YouTube turned your audio down that much to bring it to target. A value at or near 0 dB means you delivered close to -14 LUFS and nothing was turned down. It's the most direct confirmation that your master landed where you wanted.

Should you use a limiter, and how loud?

Here's the trap. Because YouTube only ever turns loud uploads down — and never turns quiet ones up — mastering to -8 LUFS to sound "competitive" buys you nothing. Your -8 master gets attenuated back toward -14 on playback, and you've traded away all your dynamic range for a loudness the platform discards. That's the loudness war losing its own point. The fix is not to over-compress: master to sound good at around -14 LUFS, let it breathe, and let normalization handle the rest.

One caveat about the normalizer itself: it applies a single gain offset and holds the true-peak ceiling — it is not a multiband limiter. If a mix is quiet and undynamic, normalizing it toward -14 will hit the -1 dBTP ceiling and stop rather than crush peaks to force more loudness. That's your signal to do the tonal work in the audio mastering tool first. If mastering itself is unfamiliar territory, what audio mastering is is a good starting point.

Troubleshooting

My track is quieter after normalizing. That's correct behavior if your master was already louder than -14 LUFS — the tool turned it down to match YouTube's target, which is exactly what YouTube would do on playback. You lose nothing: viewers hear the same loudness either way, and now your peaks are safe going into the transcode.

Stats for nerds still shows a few dB of content loudness. A small non-zero value is fine — it just means your upload was slightly louder than target and YouTube nudged it down. If you want it at 0 dB, re-run the file through the normalizer at the YouTube preset and re-export, then re-upload. There's no penalty for being turned down; it's purely cosmetic in the stats readout.

True peak is still over -1 dBTP after I export to MP3. Lossy encoding can add inter-sample peaks after you export, so a file that read exactly -1.0 dBTP can nudge over once transcoded. Give yourself margin: re-run it in Peak mode with the slider at -2 dBTP, or master a touch quieter. Delivering a lossless WAV also avoids stacking your own export encoding on top of YouTube's.

Related tasks

• Publishing the same track elsewhere? The targets differ slightly by platform — see how to master for Spotify (also -14 LUFS) and how to master for Apple Music (-16 LUFS).
• For the full end-to-end checklist before any release, how to prep a song for streaming walks through format, loudness, and peak in order.
• More how-to guides live in the how-to hub.

Frequently asked questions

What LUFS should I master to for YouTube? Aim for about -14 LUFS integrated. YouTube normalizes louder uploads down to roughly that level and leaves quieter ones alone, so -14 LUFS is the sweet spot: loud enough to sound full, not so loud that the platform attenuates it and you've lost dynamic range for nothing. Keep true peak at or below -1 dBTP alongside it.

Does YouTube turn quiet videos up? No. YouTube's loudness normalization only turns loud uploads down to its target — it never raises the level of a quiet one. That's why mastering far below -14 LUFS to "preserve dynamics" isn't a free win: your video will simply play back quietly next to everything else. Landing near -14 LUFS keeps you consistent with other content.

How do I check the loudness YouTube applied to my video? Play your uploaded video, right-click the picture, and open Stats for nerds. The Content loudness line shows how many decibels YouTube attenuated your audio. A value near 0 dB means you delivered close to the -14 LUFS target and nothing was turned down; a positive value means your upload was louder and got normalized.

Do I need special software to master for YouTube? No. You can measure and adjust loudness and true peak in a browser with a free volume normalizer, no account or install required, and your audio never leaves your device. For tonal and dynamic mastering on a raw mix, a browser mastering tool handles that step too — the same two targets, -14 LUFS and -1 dBTP, apply either way.

Is mastering for YouTube different from mastering for Spotify? The loudness target is the same — both normalize to about -14 LUFS integrated with -1 dBTP of true-peak headroom, so a master made for one works for the other. The main practical difference is that YouTube audio usually rides inside a video file, so you master the audio to target first and then mux it into your export.