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M4A to WAV Converter

Convert M4A to WAV online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

  • Free to use
  • No file stored beyond 1 hour
  • Encrypted over TLS 1.2/1.3
  • No watermarks

Drag and drop your files here or click to upload.

Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

  1. 01

    Upload your file

    Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

  2. 02

    Choose an output format

    Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

  3. 03

    Convert & download

    Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

M4A to WAV

Why convert M4A to WAV?

M4A is a lossy format, while WAV is an uncompressed format. WAV opens on almost any device, while M4A often needs extra software.

  • No further quality loss

    WAV is lossless, so from here on the file keeps every detail - good for editing and archiving.

  • Opens everywhere

    WAV opens in every computer and audio editor; most phones, while M4A needs apple devices, iTunes and most modern players.

  • Where WAV works best

    Recording, editing and mastering (files are very large).

M4A vs WAV: what's the difference?

PropertyM4AWAV
TypeAudioAudio
CompressionLossy (smaller files, some quality loss)Uncompressed (largest files)
Opens inApple devices, iTunes and most modern playersEvery computer and audio editor; most phones
Best foriPhone voice memos and Apple Music downloadsRecording, editing and mastering (files are very large)

What is an M4A file?

MPEG-4 Audio

Developed By
Apple Inc. / MPEG
Initial Release
2001
MIME Type
audio/mp4

The M4A file extension denotes an audio-only MPEG-4 container, defined by ISO/IEC 14496-14 standards and typically encoded using Advanced Audio Coding (AAC) or Apple Lossless (ALAC). Originally popularized by Apple to differentiate audio content from standard .MP4 video files, the container utilizes an atom-based structure (e.g., ftyp, moov, mdat) to store audio streams and metadata. It serves as the successor to MP3, offering superior compression efficiency and fidelity at equivalent bitrates.

How to open an M4A file

M4A files are natively supported by the Apple ecosystem (iTunes, QuickTime, iOS Music) and Windows Media Player on modern Windows versions. Cross-platform compatibility is robust, with VLC Media Player, Audacity, and Winamp providing decoding capabilities. On Android devices, native players often handle M4A, though third-party apps like Poweramp ensure compatibility with ALAC-encoded variants.

What is a WAV file?

Waveform Audio File Format

Developed By
Microsoft & IBM
Initial Release
1991
MIME Type
audio/wav

The Waveform Audio File Format (WAV) is a raw audio bitstream standard developed by Microsoft and IBM, serving as a subset of the Resource Interchange File Format (RIFF) specification. It primarily stores uncompressed Linear Pulse Code Modulation (LPCM) audio data, making it the industry standard for archival and high-fidelity mastering on Windows systems. The format supports varying bit depths and sample rates, with the Red Book standard (44.1 kHz, 16-bit stereo) being the most prevalent implementation.

How to open a WAV file

WAV files enjoy near-universal native support across all major operating systems due to their status as a foundational audio standard. Windows Media Player, Apple QuickTime, and Linux-based media players (via ALSA/PulseAudio) open WAV files by default without requiring external codec packs or third-party software.

More tools

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

  • Convert M4A to WAV in seconds

    Every M4A to WAV conversion runs on our servers, so your device stays fast and the output quality stays intact.

  • Fast, cloud-powered

    No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

  • Secure & private

    Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

  • Free - no account needed

    Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert M4A to WAV via API

Automate M4A to WAV conversions in three steps: create a job, upload your file, then poll for the result.

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "m4a-to-wav",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "wav"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.m4a

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

FAQ

Frequently asked questions

Common questions about converting M4A to WAV with RunConvert.

Upload your .m4a file, select WAV as the output format, and click Convert. This is useful for importing voice memos or M4A recordings into audio editing software.

Most professional audio editors work natively with WAV, and converting first avoids compatibility issues with the M4A format.

Ready to convert M4A to WAV?

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