Free Audio Tool

M4A to WAV converter online

Convert M4A files, including many phone voice memos, into WAV locally in your browser. Download the WAV copy for editing, sharing, archiving, or transcription prep.

Convert browser-supported M4A to WAVUseful for phone voice memosPreview before downloadRuns locally in your browser
Free browser tool

Audio Converter

Runs locally in browser
Next step

Transcribe the edited audio when you need text

Start free, upload the prepared recording, and get an AI transcript with searchable text, speaker labels, timestamps, summaries, and TXT, DOCX, PDF, SRT, or VTT exports.

Related tools

More tools for audio converter

Continue editing or checking your file with a small set of relevant browser tools.

Audio Trimmer

Cut audio files online, set start and end points, and export a clean clip.

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Audio Cleaner / Noise Reducer

Prepare speech audio for transcription with a browser-side voice-focused cleanup export.

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Silence Remover

Remove low-volume silence from speech recordings and export a shorter WAV file.

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Volume Normalizer

Normalize speech audio volume in your browser and export a louder, cleaner WAV copy.

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Audio Quality Checker

Check audio duration, volume, clipping, silence, channels, and transcription readiness.

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Convert M4A voice recordings to WAV

Use this tool for M4A recordings from phones, voice memo apps, meetings, and interviews. The browser renders a WAV copy you can download.

Browser codec support matters

M4A is a container, so support depends on the codec inside the file. Most AAC M4A files work in modern browsers, while unusual codecs may not decode locally.

Prepare voice memos for text

After converting the recording, upload it to InstantTranscriber when you need an accurate transcript, captions, timestamps, or document exports.

How it works

How to use the M4A to WAV Converter

  1. Choose an M4A file your browser can play.
  2. Convert it to WAV.
  3. Preview the converted recording.
  4. Download the WAV copy.
FAQ

M4A to WAV Converter questions

Can I convert an iPhone voice memo to WAV?

Yes, if the M4A voice memo uses a codec your browser can decode. Many iPhone voice memos work in modern browsers.

Does M4A to WAV conversion upload my file?

No. Conversion runs locally in your browser. Transcription upload is separate.

Why convert M4A to WAV?

WAV can be easier to use with editors, cleanup tools, and workflows that prefer a simple uncompressed audio file.