Convert M4A to WAV

M4A to WAV converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

M4A usually holds AAC (or lossless ALAC) audio inside an MPEG-4 container; WAV stores uncompressed PCM. Converting M4A to WAV makes voice memos and iTunes rips editable in any audio workstation — at about 10× the file size. From ALAC the conversion is truly lossless; from AAC it's decode-only.

Conversions

About formats

M4A

M4A is an audio-only MPEG-4 container, commonly used for audio tracks purchased from the iTunes Store. It typically wraps AAC or ALAC audio. M4A offers better quality than MP3 at similar bitrates and is natively supported by Apple devices and most modern media players.

Developer
Apple / ISO/IEC
Initial release
2001
Compression
Lossy or lossless
Color depth
up to 24-bit
Transparency
No
Animation
No

Best for

  • Playing iTunes Store audio
  • Apple ecosystem music storage
  • Audiobook and podcast delivery
  • High-quality portable audio
  • ALAC lossless audio storage

Pros

  • +Better quality than MP3 at similar bitrates
  • +Natively supported by Apple devices
  • +Can wrap lossless ALAC audio
  • +Multi-track MPEG-4 container

Cons

  • −Less universal than MP3 on non-Apple devices
  • −May carry FairPlay DRM
  • −Slightly more complex container
  • −Some players lack M4A support

WAV

WAV (Waveform Audio File Format) is a raw, typically uncompressed audio container developed by Microsoft and IBM based on the RIFF structure. WAV preserves full audio fidelity and is the format of choice for studio recording, archival, and professional audio editing, although file sizes are much larger than compressed formats.

Developer
Microsoft / IBM
Initial release
1991
Compression
Uncompressed
Color depth
up to 32-bit float
Transparency
No
Animation
No

Best for

  • Studio recording and mastering
  • Professional audio editing
  • Archiving uncompressed audio
  • Sound design and effects
  • High-fidelity audio preservation

Pros

  • +Full uncompressed audio fidelity
  • +Supports up to 32-bit float depth
  • +Multi-track capable
  • +Universal support in audio software

Cons

  • −Very large file sizes
  • −No compression efficiency
  • −Not practical for streaming
  • −No metadata-rich container features by default

How to convert M4A to WAV

  1. 1

    Select M4A files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.

  2. 2

    Choose wav — or any other format you need as a result (more than 200 formats supported).

  3. 3

    Let the file convert, then download your wav file right away.

M4A vs WAV

PropertyM4AWAV
CompressionLossy or losslessUncompressed
Color depthup to 24-bitup to 32-bit float
Multi-trackYesYes
DRM supportYesNo
Open formatNoNo

When to use M4A vs WAV

M4A

  • Playing iTunes Store audio
  • Apple ecosystem music storage
  • Audiobook and podcast delivery
  • High-quality portable audio
  • ALAC lossless audio storage

WAV

  • Studio recording and mastering
  • Professional audio editing
  • Archiving uncompressed audio
  • Sound design and effects
  • High-fidelity audio preservation

Use cases for M4A → WAV

  • Playing iTunes Store audio
  • Apple ecosystem music storage
  • Audiobook and podcast delivery
  • High-quality portable audio
  • ALAC lossless audio storage
  • Studio recording and mastering
  • Professional audio editing
  • Archiving uncompressed audio
  • Sound design and effects
  • High-fidelity audio preservation

Frequently Asked Questions

Is converting M4A to WAV free?
Yes. This M4A → WAV converter runs entirely in your browser and is completely free — no account, no credits, no watermark.
Which devices and platforms can I use to convert M4A to WAV?
Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.
Are my M4A files uploaded to a server?
No. Files never leave your device. The entire M4A → WAV conversion runs locally in your browser, so your data stays private.
Can I convert multiple M4A files at once?
Yes — batch conversion is supported. Add as many M4A files as you like and convert them to WAV in one pass, then download the results together.
What is the maximum file size?
There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.
Will converting M4A to WAV lose quality?
No. WAV is a lossless format (or used in a lossless mode here), so the original data from your M4A file is preserved bit-for-bit in the converted result.
Does WAV support transparency?
No — WAV has no alpha channel. Transparent areas of your M4A file will be filled with a solid background colour in the converted file.
How will the file size change after converting M4A to WAV?
Both formats use comparable compression, so the WAV output will be similar in size to your M4A file — typically within 10–20% of each other.

Related Conversions

Specific converters

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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