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Free · no upload · 44.1 or 48 kHz

M4A to WAV: convert it right in your browser

Choose an M4A file, pick a sample rate and download a WAV. Your file stays on your device the whole time, and there's no account or watermark.

Sample rate

Converted on your device, never uploaded

  • Nothing is uploaded
  • 44.1 or 48 kHz WAV
  • Preview before you download
  • Free, no account

Updated by the

Quick answer

Updated

How do you convert M4A to WAV?

To convert M4A to WAV, choose your file in the tool above, pick 44.1 or 48 kHz, then press Download WAV. The conversion runs in your browser, so the file is never uploaded. It's free with no account. Files can be up to 60 MB, about an hour of 128 kbps M4A, and the result is a 16-bit WAV. Expect it to be about 11 times bigger, with no gain in sound quality.

Key facts

Opens
M4A with AAC audio, plus MP3, WAV and OGG (what your browser decodes)
Download
16-bit WAV, stereo or mono
Sample rate
44.1 kHz or 48 kHz, your choice
File limit
60 MB (about 1 hour of 128 kbps M4A)
WAV size
About 10.6 MB per minute (stereo, 44.1 kHz)
Files at once
One
Privacy
Processed on your device
Cost
Free, no account, no watermark

Listen first

No file to hand?

Real AI generations from the Music Studio. These are MP3s, which the converter also opens.

Boom-bapInstrumental90 BPM

Crate Digger

Made with MiniMax Music 3.0 · A beat to load into your editor

—

PromptClassic boom-bap hip-hop beat, dusty kick and snare, chopped soul sample, deep bass, head-nod groove, 90 bpm

Bossa novaInstrumental124 BPM

Rio Afternoon

Made with Ken Music 1.5 · A soft bed for a podcast

—

PromptBossa nova, nylon-string guitar, soft brushes, flute melody, warm and breezy, Rio beach afternoon, 124 bpm

EDMInstrumental128 BPM

Hands Up

Made with MiniMax Music 3.0 · A drop for a short video

—

PromptBig-room EDM festival track, huge build-up, massive drop with punchy kick and lead synth, crowd energy, 128 bpm

How to

How to convert M4A to WAV

Time needed
Steps
4 steps
  1. Step 1

    Choose your M4A file

    It can be up to 60 MB, and it opens on your device.

  2. Step 2

    Pick a sample rate

    44.1 kHz for music, 48 kHz for video.

  3. Step 3

    Preview it

    Press Preview to check it's the right file. The tool shows the length and the WAV size.

  4. Step 4

    Download the WAV

    It saves with the same name and a .wav ending. Your M4A isn't changed.

Kenerate AI Music Studio tool card set to Instrumental, no vocals background music

Open Music Studio and pick a song from a prompt, a song from your lyrics, or an instrumental.

1 / 5 · Choose what to make

Watch the tour · 1:24

Prompt & lyrics to song, instrumentals, models, your tracks & chat

Chapters

Engines

Engines for making new audio

Facts from the app's engine list, for when you'd rather make a track than convert one.

  • ElevenLabs Music v2.5 title card — a pristine modern recording studio at night

    ElevenLabs

    ElevenLabs Music v2.5

    Length
    Exact length, 10 s–10 min
    Modes
    Song · Lyrics · Instrumental

    Best for

    Set the exact duration; clean studio mix

    Open ElevenLabs Music v2.5
  • Ken Music 1 title card — a stylised neon burst of a short catchy musical hook

    Kenerate

    Ken Music 1

    Length
    ~30 s
    Modes
    Song · Instrumental

    Best for

    Quick clips — hooks, jingles, intros

    Open Ken Music 1
  • Ken Music 1.5 title card — a dreamy album-cover-like scene where a photograph dissolves into flowing musical waveforms and notes around a vocalist's microphone

    Kenerate

    Ken Music 1.5

    Length
    Up to ~3 min
    Modes
    Song · Lyrics · Instrumental

    Best for

    Default engine: full songs with vocals in any language; can take an image as inspiration

    Open Ken Music 1.5
  • MiniMax Music 3.0 title card — a song structure shown as glowing coloured blocks of verses and choruses arranged like a city skyline

    MiniMax

    MiniMax Music 3.0

    Length
    Up to 4 min
    Modes
    Song · Lyrics · Instrumental

    Best for

    Follows [Verse]/[Chorus] section tags closely

    Open MiniMax Music 3.0

Prompt recipe

Or make the audio from scratch

Open any of these in the Music Studio if you need a new track instead of a converted one.

Music
44.1 kHz, the CD standard.
Video
48 kHz, the usual rate for video projects.
Voice notes
Either works. 44.1 kHz is a little smaller.
Unsure
Keep 44.1 kHz. You can switch and download again.
Not sure of the source
Higher doesn't add detail, so don't pick it for quality.
  • Podcast intro

    Short warm podcast intro, soft electric piano, light drums, friendly and confident, clean ending

  • Video bed

    Gentle background music for a product video, soft plucked guitar, light percussion, steady and calm

  • Game loop

    Cheerful 8-bit game loop, simple square-wave melody, steady beat, loops cleanly

  • Phone hold music

    Light, friendly hold music, soft vibraphone and brushed drums, even volume throughout

Tips

Good to know before you convert

A few things that save a second try.

  • Keep your M4A. It's much smaller, and the WAV can be remade at any time.

  • Check the size shown in the tool before downloading a long file.

  • Need only part of the file? Use the audio trimmer, which also saves a WAV.

  • If a file won't open, try another browser or the ffmpeg command on this page.

  • Only convert audio you have the right to use.

FAQ

M4A to WAV Converter questions

How do I convert M4A to WAV for free?

Choose your file in the converter at the top of this page, pick a sample rate, then press Download WAV. It's free, with no account and no watermark.

Link to this answer

Is my file uploaded?

No. Your browser decodes the file and builds the WAV on your device, so the audio never reaches our servers.

Link to this answer

Does converting M4A to WAV improve the quality?

No. Most M4A files use AAC, which is lossy, and detail removed when the M4A was made can't come back. The WAV holds exactly what the M4A could play, in a bigger file that editors handle easily.

Link to this answer

Does converting lose any quality?

Very little, and nothing you'd normally hear. The WAV is 16-bit and isn't compressed again. If your chosen rate differs from the file's rate, the audio is resampled to match.

Link to this answer

Should I choose 44.1 or 48 kHz?

Use 44.1 kHz for music and 48 kHz for video, unless an app or a person has asked for something else. Neither adds detail to the file.

Link to this answer

Why is the WAV so much bigger than the M4A?

WAV is uncompressed. A stereo file at 44.1 kHz takes about 10.6 MB per minute, while a 128 kbps M4A takes about 1 MB per minute. At 48 kHz it's about 11.5 MB per minute.

Link to this answer

Why won't my M4A open?

M4A is a container, so the audio inside can vary. Apple Lossless failed in Edge when we tested it, while ordinary AAC files worked. Protected .m4p files, from older iTunes purchases, are encrypted and won't open here. For Apple Lossless, try ffmpeg: ffmpeg -i input.m4a output.wav

Link to this answer

Can I convert several files at once?

No, this tool handles one file at a time. For a big batch, a desktop tool such as ffmpeg will be quicker.

Link to this answer

Can I convert M4A to MP3 here?

Not with this tool, which always saves a WAV. Use our M4A to MP3 converter for that. It also runs on your device, and you can pick 128, 192 or 320 kbps.

Link to this answer

How big a file can I convert?

Up to 60 MB. In Edge on a Windows desktop, a one-hour M4A of 58.4 MB opened in about 5 seconds and made a 635 MB WAV. We haven't measured phones, which have less memory, so long files may fail there.

Link to this answer

In depth

M4A to WAV Converter, explained

What works, what to avoid, and how the pieces fit.

What M4A and WAV actually are

M4A is the usual ending for audio-only MPEG-4 files [1]. It's a container rather than a codec, and the audio inside is most often AAC, which is compressed and lossy. WAV normally holds plain uncompressed PCM audio, so almost any editor or sampler can read it without decoding.

That's the main reason to convert. Some editing software, samplers and upload forms ask for WAV, and the conversion gets you past that. It doesn't make the recording sound better.

By Last updated and reviewed

We build and run the Kenerate Music Studio. Every demo on this page is a real output of the engine named on it, made from the prompt shown; engine facts were checked against the app's code.

Sources: FFmpeg documentation

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