To convert M4A to WAV, choose your M4A audio files above, adjust the options if needed and press "Convert to WAV". The WAV downloads instantly: free, with no sign-up, and the file never leaves your device.
About the M4A to WAV Converter
Need to turn a M4A file into WAV? This free converter changes M4A audio files into WAV in a few seconds, right in your browser. People usually convert because some car stereos, Android apps and editors will not play M4A, while WAV gives you uncompressed WAV for editing. WAV files open in Audacity, Adobe Audition, FL Studio, Premiere Pro, Windows and macOS.
Audio and video are processed by FFmpeg compiled to WebAssembly, the same open-source engine behind VLC and HandBrake, running inside your browser tab. Because everything happens on your own device, your audio files are never uploaded, stored or seen by anyone else, which makes it safe for voice recordings, interviews and unreleased music.
What to expect: the sample rate and channels are kept, and you can pick the bitrate; converting lossy M4A to WAV stops further loss but cannot restore detail that was removed earlier; the processing engine (about 30 MB) is downloaded once and then cached by your browser.
How to use the M4A to WAV Converter
- Click "Choose files" or drag your M4A audio files onto the box. You can add several at once.
- Choose mono or stereo; WAV is saved as uncompressed 16-bit PCM.
- Press "Convert to WAV". The conversion runs on your device and shows its progress.
- Download each WAV file, or use "Download all (ZIP)" when you converted several.
- Open the result in Audacity or Adobe Audition to check it; your original M4A is never changed.
Tips & benchmarks
- WAV is uncompressed 16-bit PCM, so it is large but loses nothing further and edits cleanly.
- Converting a compressed M4A to WAV will not bring back detail that was already discarded; it simply prevents further loss when you edit.
- As a guide, one minute of audio at 128 kbps is about 1 MB, and at 320 kbps about 2.4 MB.
- Keep the file name simple (letters, numbers and hyphens) if you plan to upload the WAV to a website or government portal.
Frequently asked questions
How do I convert M4A to WAV?
Click "Choose files", select your M4A audio files, adjust the options if you want, and press "Convert to WAV". The WAV downloads immediately; with several files you can download everything as one ZIP.
Is this M4A to WAV converter free and safe?
Yes. It is completely free, with no sign-up, no daily limit and no watermark. The conversion runs inside your browser, so your audio files never leave your phone or computer and nothing is stored on News Appite's servers.
Does converting M4A to WAV lose quality?
WAV is uncompressed, so no further quality is lost, although the file will be much larger than the M4A.
Can I convert several M4A files at once?
Yes. Add as many M4A files as you like; they are converted one after another and you can download them individually or together as a ZIP.
Does it work on iPhone, Android and Mac?
Yes. The converter works in any modern browser, including Chrome, Safari, Edge and Firefox, on Android, iPhone, iPad, Windows, macOS and Linux. No app is needed. The audio and video engine is a larger download the first time, so Wi-Fi is recommended.
What is the difference between M4A and WAV?
M4A (MPEG-4 Audio) is a AAC audio in an MP4 container best suited to iPhone, iTunes and Apple Music libraries and voice memos. WAV (Waveform Audio File Format) is a uncompressed audio best suited to audio editing, studio work, broadcast, transcription tools and sound effects.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. The practical limit is your device's memory: files of a few hundred megabytes work on most computers, and phones handle smaller files comfortably.
How do I convert M4A to WAV on iPhone?
Open this page in Safari, tap "Choose files" and pick the M4A from Photos or the Files app. Tap "Convert to WAV"; the WAV is saved to Files → Downloads, from where you can share it or save it to Photos. No app is needed.
How do I convert M4A to WAV on Android or mobile?
Open this page in Chrome, tap "Choose files", select the M4A from your gallery or file manager and tap "Convert to WAV". The converted file is saved in the Downloads folder, ready to share on WhatsApp or upload.
How do I convert M4A to WAV on Windows 10 or 11?
Open this page in Chrome or Edge, drag the M4A files onto the upload box and click "Convert to WAV". Nothing has to be installed, and the files are saved to your Downloads folder.
How do I convert M4A to WAV on a Mac?
Open this page in Safari or Chrome, drop the M4A files onto the upload box and click "Convert to WAV". It works the same on Intel and Apple silicon Macs.
M4A ko WAV kaise kare?
Is page par "Choose files" dabaiye, apni M4A file chuniye aur "Convert to WAV" par click kijiye. WAV file turant download ho jaati hai. Ye bilkul free hai, sign-up nahi chahiye, aur aapki file kisi server par upload nahi hoti.
M4A vs WAV: format comparison
| M4A | WAV | |
|---|---|---|
| Full name | MPEG-4 Audio | Waveform Audio File Format |
| Type | AAC audio in an MP4 container | Uncompressed audio |
| Created by | MPEG-4, popularised by Apple iTunes (2003) | Microsoft and IBM, 1991 |
| Compression | Lossy (AAC) | Uncompressed PCM |
| File extension | .m4a | .wav |
| MIME type | audio/mp4 | audio/wav |
| Best for | IPhone, iTunes and Apple Music libraries and voice memos | Audio editing, studio work, broadcast, transcription tools and sound effects |
| Opens in | iPhone, iTunes, Apple Music, VLC, Windows Media Player and Android | Audacity, Adobe Audition, FL Studio, Premiere Pro, Windows and macOS |
What is a M4A file?
M4A is an MPEG-4 file that holds AAC audio. Apple Music, iPhone voice memos and many recorders use it because AAC sounds better than MP3 at the same bitrate.
What is a WAV file?
WAV is Microsoft and IBM's uncompressed audio format from 1991. It stores raw PCM samples, about 10 MB per minute at CD quality, so it is the safest format for editing, mastering and broadcast.
Need it the other way round? Use the WAV to M4A Converter.
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