Skip to main content

Free WAV to M4A Converter Online

Convert WAV to M4A online and shrink large recordings into AAC files for Apple Music and iPhone. Upload files up to 20GB and download the converted result in a few clicks.

Convert M4A to WAV

Drag & Drop your WAV file here

WAV files, up to 20GB

Privacy Files stay private.

Privacy Automatically deleted after 24 hours.

LinkPrivacy 20GB upload limit.

4.8/5

Trusted for 1,827,796+ conversions

HOW IT WORKS

Convert WAV to M4A in three steps

Three steps, no account, nothing to install.

01

Upload the WAV

Drag and drop your WAV files or select them from your device. 8 to 32-bit, float, RF64 and compressed WAVs are accepted.

02

Convert to M4A

Keep M4A as the output and start. PCM audio is encoded as AAC at 256 kbps for stereo or 128 kbps for mono.

03

Download the M4A

Save each M4A when it is ready, or download several results together as a ZIP.

WAV

WAV is a RIFF-based audio format commonly used for uncompressed PCM audio. It is easy to edit and broadly supported in recording, broadcast, and desktop audio workflows. Files are large: about 10 MB per minute of CD-quality stereo.

M4A

M4A is an audio-only MPEG-4 file, usually holding AAC audio. It is the format of iTunes Store purchases and plays in Apple Music and on iPhone, Mac, Android and Windows, as well as in web browsers.

FILE FORMATS

WAV and M4A compared

SOURCE

WAV

Microsoft and IBM defined WAV in 1991. It normally stores plain PCM audio with no compression, which is why editors, DAWs, broadcast systems and speech tools accept it without question. The price is size: CD-quality stereo takes about 10 MB per minute, and tagging support is limited.

TARGET

M4A

M4A is an MPEG-4 audio file, usually AAC and sometimes Apple Lossless, with iTunes-style tags and album art. It is the format of iTunes Store music, iPhone voice memos and Apple Music libraries, and Android, Windows and browsers play it too. At the same bitrate, AAC in M4A sounds better than MP3.

FeatureWAVM4A
Developed byMicrosoft and IBMApple / MPEG
File extension.wav.m4a
CompressionNone (PCM)Lossy (AAC) or lossless (ALAC)
Size vs uncompressed WAVSame size (1:1)About 1/10 (AAC)
Tags and cover artBasic text tags, no cover artiTunes tags and cover art
Best forEditing, mastering, speech toolsApple Music and iPhone libraries
Plays on phones and browsersYesYes, most devices

USE CASES

Use Cases for WAV to M4A

Practical workflows where WAV to M4A conversion is useful.

logo

Put studio bounces on your iPhone

Bounce a mix to WAV, convert it to M4A and listen in Apple Music or on iPhone at a fraction of the size.

logo

Send a demo to a band or client

A 256 kbps M4A is small enough for email and chat, while still in iTunes Plus quality.

logo

Mix down multitrack recorder files

Recorder WAVs with many tracks and no speaker layout are mixed to stereo with tracks 1, 3, 5… on the left and tracks 2, 4, 6… on the right, so every track is heard.

logo

Make listening copies of high-resolution masters

24-bit 96 kHz WAVs become 48 kHz AAC for everyday playback. Keep the WAV as your master.

logo

Shrink phone-call recordings

8 kHz mu-law and A-law call recordings stay 8 kHz and become compact M4A files.

logo

Play old dictaphone recordings

Old voice recorders and answering-machine software saved IMA ADPCM or GSM WAVs. They convert to M4A files that today's phones play.

logo

Hear surround WAVs in stereo

5.1 WAVs are mixed down to stereo M4A, which plays on headphones and ordinary speakers.

logo

Keep track names from the WAV

Title and artist from the WAV's INFO chunk and a cover from its ID3 chunk are kept, so tracks show up properly in Apple Music.

logo

Upload to a site with a size limit

Platforms with upload caps take a 256 kbps M4A far more easily than a large WAV.

logo

Publish a podcast episode as AAC

Export the episode from your editor as WAV, then convert it to M4A for hosts and apps that accept AAC audio.

SUPPORTED FILES

Which WAV Files Can I Convert?

WAV files of any common bit depth and sample rate are supported.

Studio bounces

16, 24 and 32-bit WAV from DAWs.

Recordings

Field recorder and voice recordings.

Hi-res WAV

High sample rates become 48 kHz AAC.

Surround WAV

Mixed down to stereo.

A batch

Upload many WAVs and download the M4A files together as a ZIP.

TROUBLESHOOTING

M4A Not Working as Expected?

These explain most differences from the WAV.

01

I need a lossless copy

M4A here holds lossy AAC. Keep the WAV as your master.

02

Tags are empty

WAV files usually carry few tags. Add title and artist in your music app.

03

A 96 kHz file is now 48 kHz

High-resolution sources are written at 48 kHz in AAC.

04

Surround is now stereo

Multichannel WAV is mixed down to stereo.

05

The file is much smaller

That's expected. AAC is roughly a tenth of the WAV size.

06

Still not working

Check the WAV plays. A damaged file stops with a short message.

COMPARISON

dragdropdo vs. Desktop Audio Converters

Audacity, foobar2000, fre:ac and Apple's Music app can all convert audio once they are installed and set up. dragdropdo is built for turning WAV into M4A quickly, from any device.

What mattersdragdropdoDesktop Audio Converters
Nothing to install✓Yes. Runs in any modern browser.~Yes, a download, and sometimes an extra encoder or codec.
Works on phones and tablets✓Yes. Desktop, Android, iPhone and iPad.~Mostly desktop only.
Batch conversion✓Yes. Add many files and download one ZIP.~Varies. foobar2000 and fre:ac batch well; Audacity needs macros.
Share finished files✓Yes. Send a unique link from the result page.~You upload and share the files yourself.
Pricing✓Free with daily limits. $2.99 or $6.99 passes for unlimited use, no monthly plan.~Mostly free (Audacity, foobar2000, fre:ac).
Choosing bitrate and settings✓Fixed, high-quality settings chosen for M4A.~Yes. Most let you choose bitrate, sample rate and channels.

Other tools use different pricing, limits and workflows. This comparison describes dragdropdo's own features without assuming every other tool works the same way.

1.8M+

Files converted

and counting

4.8

Average rating

from our users

~4s

Avg. conversion

per file

0

Files kept

Auto-delete in 24h

WHY DRAGDROPDO

Built to be quick, safe, and free

Convert WAV to M4A in your browser, with nothing to install and nothing kept after 24 hours.

Private by default

Files are encrypted in transit and deleted from our servers automatically after 24 hours.

No install required

Convert in any modern browser on Windows, Mac, Linux, Android, iPhone or iPad. No app and no sign-up wall.

Big files and batches

Upload files up to 20GB each, add several at once, and download the results one by one or as a ZIP.

Share & download

Save finished files to your device or pass them on with a share link from the result page.

MORE WAV TOOLS

Explore our other audio operations

WAV (Waveform Audio File Format) is a standard audio file format used for storing waveform data. It delivers high-quality audio and is widely used in professional environments for music production and sound design. With its uncompressed format, WAV files ensure top fidelity, making them ideal for editing and mastering. Perfect for audio enthusiasts and professionals alike, WAV files guarantee an exceptional listening experience.

Explore all tools

FAQ

Frequently Asked Questions

Answers to common questions about dragdropdo's WAV to M4A converter.