WAV to CAF Converter
FileFlip converts WAV to CAF entirely inside your browser, using FFmpeg compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert a WAV file to CAF?#
- Drop your WAV file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to CAF and the conversion starts on its own. FileFlip downloads 30.8 MB of WebAssembly the first time and nothing after that, then runs FFmpeg on your own machine.
- Save the CAF file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting WAV to CAF lose quality?#
It depends on what is inside the file. WAV is a container rather than a codec, so whether the CAF conversion copies the streams across untouched or re-encodes them is decided by the codecs that particular file happens to use.
Is it safe to convert WAV files online?#
Yes, because nothing is uploaded. FileFlip converts WAV files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What WAV to CAF actually does to the file#
Converting WAV to CAF runs on FFmpeg, downloads 30.8 MB of WebAssembly the first time and nothing after that, re-encodes or copies through depending on the codecs in the file, and drops encoded streams.
| Engine | FFmpeg |
|---|---|
| Conversion path | One step: WAV → CAF |
| Downloaded to your browser | 30.8 MB, once, then cached by your browser |
| Quality | Decided by the codecs inside the file |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Encoded streams | Dropped | The target format has nowhere to put it. |
What is a WAV file?#
A WAV file holds digital audio, almost always uncompressed PCM samples, wrapped in Microsoft and IBM's RIFF chunk structure, the same sample encoding used on audio CDs.
Use WAV for recording, editing and mixing, where uncompressed audio and broad software support matter more than file size.
Convert WAV to MP3 or FLAC once editing is finished and the file needs to be distributed, since raw PCM is unnecessarily large for listening rather than production.
What is a CAF file?#
A CAF file holds audio in Apple's Core Audio Format, introduced in 2005 to replace AIFF and WAV on the Mac because its 64-bit chunk sizes have no practical file size or duration limit.
Keep audio as CAF while it stays inside Apple's own tools, such as Logic Pro, GarageBand, or an iOS app's own audio recordings, where the format's size and codec flexibility are used directly.
Convert CAF to WAV or M4A when the audio needs to leave the Apple ecosystem, since most non-Apple software has no built-in way to open it.
WAV to CAF questions people ask#
Is WAV a lossless format?
Yes, WAV is lossless in the sense that matters for audio: it stores uncompressed PCM samples with nothing removed and nothing approximated. It isn't compressed at all, so there's no algorithm that could introduce loss, unlike FLAC, which compresses the audio but still decodes back to the exact same samples.
Why are WAV files so much bigger than MP3s?
WAV files are bigger than MP3s because WAV stores every audio sample uncompressed, while MP3 discards sound and compresses what's left to about a tenth of the size. A three-minute song runs roughly 30 MB as CD-quality WAV versus 3-5 MB as a 192 kbps MP3.
Does converting WAV to MP3 lose quality?
Yes, converting WAV to MP3 loses quality, because MP3 is a lossy codec that permanently discards audio data during encoding. The loss is usually inaudible at 256-320 kbps, but it is real and can't be undone by converting the MP3 back to WAV.
What plays WAV files?
Every mainstream media player and DAW plays WAV files: Windows Media Player and VLC on Windows, QuickTime Player and Music on macOS, and Audacity, Pro Tools, Logic and Ableton Live everywhere audio gets edited. Support is effectively universal because the format has been the audio industry's baseline since 1991.