Convert WAV to M4A for iPhone, iTunes and Apple Music with excellent quality at small sizes. Drop a .wav file below and the output is already set to M4A.
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Drag and drop your .wav file onto the box above, or click Choose Files. The request is already filled in: “Convert this to M4A”.
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The AI assistant uses sensible defaults. To choose the bitrate, codec or sample rate yourself, say so in the request, for example “Convert this to M4A at 320 kbps”.
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The assistant opens with your file and converts it on your own device; the file itself is never uploaded. When the M4A file is ready, click Save. Prefer to set everything by hand, or batch-convert several files into a ZIP? The classic converter is one click away on this page.
M4A with AAC is the format Apple devices and iTunes prefer, offering MP3-beating quality at around a tenth of a WAV's size. Converting WAV to M4A is ideal for voice memos, podcasts and music bounces headed for an iPhone or Apple Music library.
You can also choose ALAC inside M4A for a lossless file that stays around half the size of WAV. Either way, the conversion runs in your browser and keeps title, artist and album tags.
WAV (Waveform Audio File Format): WAV stores uncompressed PCM audio exactly as it was recorded. It is the standard for audio editing, mastering and archiving, at the cost of large files (about 10 MB per minute of CD-quality stereo). It is best for editing, mastering, DAWs and archiving.
M4A (MPEG-4 Audio): M4A is audio-only MP4, normally holding AAC (or lossless ALAC). It is the native format of iTunes, Apple Music and iPhone Voice Memos and sounds better than MP3 at the same bitrate. It is best for Apple devices, iTunes and voice memos.
In short: keep WAV when the priority is editing, mastering, DAWs and archiving, and switch to M4A when the file is headed for Apple devices, iTunes and voice memos. Need a different target? The full Audio Converter supports every format listed below.
Choose the ALAC codec for a lossless file, or AAC at 256 kbps for a much smaller file that sounds transparent.
Yes. Both AAC and ALAC M4A files import into Apple Music/iTunes and sync to iPhone and iPad.
Yes. Converting WAV to M4A on Convertor.video is free, with no watermark and no sign-up. The AI assistant runs on a free daily allowance of assistant credits; the classic converter on this page has no daily limit at all.
No. The conversion runs inside your browser using FFmpeg compiled to WebAssembly, so your .wav file is read and converted on your own device and never uploaded, which keeps private recordings private and means there is no waiting in an upload queue. The AI assistant only sees what you type and basic facts about the file: its name, format, duration and size.
There is no plan or account limit, but the converter loads the whole WAV file into your browser's memory, so about 2 GB per file is the practical ceiling; larger files may fail to open. Long or high-resolution files also take longer, especially on phones.
Yes. Ask the AI assistant for a bitrate, codec or sample rate in your request. Audio track selection and every other setting are in the classic converter, one click away on this page.
M4A is a lossy format, so the WAV audio is decoded and re-encoded. Keep the bitrate at 100% (or pick 256 to 320 kbps) and the difference is inaudible for almost all listeners.
It is built and tested on current desktop Chrome and Edge. The conversion itself runs in WebAssembly, which every current desktop browser supports, so speed depends mostly on your computer's processor.