Turn M4A recordings into uncompressed WAV files. It is converted in your browser, so the file never leaves your device.
Drop M4A files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop M4A files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the WAV, or download everything as one ZIP if you converted several files.
The M4A to WAV converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
Transcription services, audio editors and some telephony systems ask for WAV. Converting a voice memo or an M4A export gives them an uncompressed file. The WAV will be much larger and holds exactly what the M4A did, no more.
The defaults suit most files. Under Options you can trim the start and end.
The conversion uses your browser's own video and audio codecs (WebCodecs), with hardware acceleration where the device has it; the file is read from disk as it goes and can be up to 2 GB. Where the browser lacks a codec, the page falls back to the compatibility engine.
M4A is an MP4 file that contains only audio, usually AAC. iPhone Voice Memos and the iTunes Store use it. It sounds better than MP3 at the same size but is not accepted everywhere MP3 is.
Opens in Apple devices, Android, current browsers; some car stereos and older players do not
M4A converterWAV stores audio as raw, uncompressed samples. Nothing is lost, which makes it the standard working format in audio editing, and files run to about 10 MB per minute at CD quality.
Opens in Every computer, audio editor and most phones
WAV converter| M4AM4A audio | WAVWAV audio | |
|---|---|---|
| Stands for | MPEG-4 Audio | Waveform Audio File Format |
| Type | Audio | Audio |
| Compression | Lossy (AAC); lossless when it holds ALAC | None (uncompressed PCM) |
| Usually contains | AAC, sometimes Apple Lossless | PCM |
| Introduced | The early 2000s, by the Moving Picture Experts Group (popularised by Apple) | 1991, by Microsoft and IBM |
| Opens in | Apple devices, Android, current browsers; some car stereos and older players do not | Every computer, audio editor and most phones |
| Best for | Music and voice memos on Apple devices | Recording, editing and mastering |
| File extension | .m4a | .wav, .wave |
No. The M4A to WAV conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
Nothing more is lost: WAV is uncompressed, written as 16-bit audio, the same as a CD. It cannot restore what M4A compression already discarded, and the file will be larger.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the M4A file, press Convert and save the WAV. There is nothing to install.
Yes. Files up to 2 GB are accepted. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.