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macOS and Windows. Your files stay on your computer.

Normalize audio on your Mac or PC. Fully offline.

Bring quiet interviews up and loud clips down to one consistent loudness. Normalize to -14 LUFS, set a peak ceiling or add fixed gain, across hundreds of files at once. Each file is measured first, on your own computer.

−37.8 LUFS−14.0 LUFSReal result from the recording: streaming standard, 1:41, two-pass EBU R128

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Intel Mac or need help installing? All downloads

Hangar runs on Mac and Windows. Open this page there to download.

  • Free for 3 days
  • No account
  • Then $45 once, no subscription
  • MP3
  • WAV
  • FLAC
  • AAC
  • OGG
  • Opus
  • M4A
  • Keeps MP3, AAC, Opus, and WAV; FLAC comes back as WAV

From the recording

The real run, file by file.

1 file went in and Hangar wrote 1 file. It is the same run as in the recording, with the real names and sizes. Your originals are never changed.

  • Lumen-Interview-Raw.wav17.1 MBLumen-Interview-Raw-vol.wav17.1 MB-14 LUFS

1 file in1 file outoriginals untouched

17.1 MB17.1 MB

How it works

How to normalize audio on Mac or Windows

  1. Drop one file or hundreds

    MP3, WAV, FLAC, AAC, OGG, Opus and M4A.

  2. Pick a mode and a target

    Normalize aims at a loudness, -14 LUFS by default. Peak sets where the loudest moment lands. Gain adds or cuts a fixed number of decibels.

  3. Get evenly loud copies

    Hangar measures each file and applies the change it needs. MP3, AAC, Opus and WAV keep their format; FLAC comes back as WAV.

New to Hangar? How to run a tool, step by step

Choose how to level

Match a loudness, cap the peaks, or just turn it up.

Normalize and Peak measure each file first and apply exactly the change it needs, so a batch comes out consistent. Gain applies the same fixed change to every file and does not check for clipping.

  • Normalize

    Start here

    Every file at one loudness, -14 LUFS by default.

    Best for episodes, interviews and anything played back to back.

  • Peak

    The loudest moment lands at your ceiling, -1 dB by default.

    Best for clips that must stay under a set level.

  • Gain

    A fixed boost or cut, up to 30 dB.

    Best for a quick, known adjustment. Big boosts can distort.

Every setting, explained in the Volume & normalize guide Mode · Target loudness · Gain · Peak ceiling

The alternative

Why not normalize in Audacity?

Audacity is free and has loudness normalization built in, so for one file it is all you need. For a season of episodes or a batch of clips, Hangar levels them all in one pass.

ComparedAudacityHangar
PriceFreePay once
Loudness targetsBuilt-in loudness normalization-24 to -9 LUFS, -14 by default
A batch of filesWith a macro you set upDrop them all at once
Compression and EQIncludedNot included
Where your audio goesStays on your computerStays on your computer
Other file jobsAudio onlyPDFs, images and video in the same app

Audacity: the free, open-source audio editor for Mac, Windows and Linux.

Who uses it

Who uses Volume & normalize

  • Podcasters

    Guest and host at the same level

    With each voice in its own file, bring a quiet remote guest up to sit level with the studio mic.

    Hangar for podcasters
  • Video creators

    Voiceovers that match across a series

    Keep narration at one loudness from the first video to the latest.

    Hangar for video and social creators
  • Musicians

    Demos at streaming loudness

    Bring your mixes to -14 LUFS before you send them out.

One app, one payment

Volume & normalize is one of 74 tools.

The same app trims, converts, compresses and captions video and audio, and does the same kind of work for PDFs and images. One payment covers every tool.

Save it as a chain

Your whole routine, one click

  1. Step 1Volume & normalize
  2. Step 2Compress audio
  3. Step 3Batch rename

Level a batch of recordings, shrink each to a small MP3 and give them clean, numbered names in one run.

How chains work

Questions

Before you download

More answers in the help center.

Is it really free?

Every tool is free for 3 days, with no account and no card. After that, Hangar is a one-time payment from $45, with updates for the version you buy. There is no subscription.

Which loudness should I pick?

Keep the default -14 LUFS unless your platform asks for a different number. You can set anything from -24 to -9 LUFS.

Does it bring every file in a batch to the same loudness?

Yes. Normalize measures each file on its own and brings it to the target, so quiet and loud files end up even.

Can I match streaming loudness?

Yes. Normalize targets -14 LUFS by default, which the app marks as the streaming standard, and you can set a different target from -24 to -9 LUFS.

What is the difference between the modes?

Normalize brings each file to a loudness target with one exact volume change, Gain applies a fixed boost or cut in decibels, and Peak raises or lowers the track so its loudest moment sits at a ceiling.

Will it clip the audio?

Normalize keeps the loudest peaks below the maximum. Peak sets them exactly where you choose, up to 0 dB. Gain does not check, so a big boost can distort.

Will Normalize squash my recording?

No. It turns each file up or down by one exact amount, so a live set, a lecture or any recording with quiet and loud parts keeps the same balance. Only the few peaks that would go over the maximum are held down.

Does anything get uploaded?

No. Your files are processed on your computer and never sent anywhere. Hangar sends anonymous usage counts to improve the app, never file names or contents, and you can turn that off in Settings.

Does one license cover Mac and Windows?

Yes. A license works on any mix of Mac and Windows computers. Solo covers 1 computer, Crew 3 and Fleet 10.

Try Volume & normalize free for 3 days.

Then pay once, from $45, for every tool and the updates for your version. No subscription. 30-day refund.See plans

Download for Mac Download for Windows

Intel Mac or need help installing? All downloads

Hangar runs on Mac and Windows. Open this page there to download.