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Convert WAV to M4A

WAV is great for audio editing, studio work and maximum compatibility with editing apps, but M4A is the better choice for high-quality music and voice recordings for Apple and Android devices. Convert WAV to M4A in seconds, right in your browser.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    How to convert WAV to M4A

    1. 1

      Tap Choose files and select one or more WAV files (or drag them in).

    2. 2

      Check that M4A is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your M4A downloads automatically. Converting several files? Grab them all as a ZIP.

    WAV vs M4A

    M4A uses lossy compression, which makes the file much smaller than WAV. Choose High quality and the difference is inaudible for most listeners.

    WAVM4A
    Full nameWaveform Audio File FormatMPEG-4 Audio (AAC)
    TypeAudioAudio
    CompressionLosslessLossy
    Developed byMicrosoft & IBMApple / MPEG
    Introduced19912001
    Plays on iPhone✓ Yes✓ Yes
    Plays on Android✓ Yes✓ Yes
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac✓ Yes✓ Yes

    About WAV and M4A

    WAV: WAV stores uncompressed PCM audio, so it keeps every bit of the original sound. Files are large, but WAV is the standard for audio editing, studios and professional software.

    M4A: M4A is an MPEG-4 container holding AAC audio. It sounds better than MP3 at the same size and is the default format for iPhone voice memos, Apple Music downloads and many Android recorders.

    Frequently asked questions

    How do I convert WAV to M4A on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your WAV, make sure M4A is selected and tap Convert. The M4A file is saved to your Downloads.
    Will converting WAV to M4A reduce quality?
    M4A uses lossy compression, which makes the file much smaller than WAV. Choose High quality and the difference is inaudible for most listeners.
    Is this WAV to M4A converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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