AMR to AIFF Converter
FileFlip converts AMR to AIFF 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 an AMR file to AIFF?#
- Drop your AMR 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 AIFF 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 AIFF file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting AMR to AIFF lose quality?#
AIFF is a lossless format, so nothing further is lost here, but nothing is recovered either. Whatever the AMR encoder already threw away is gone, and the AIFF file will usually be several times larger for exactly the same content.
Is it safe to convert AMR files online?#
Yes, because nothing is uploaded. FileFlip converts AMR 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 AMR to AIFF actually does to the file#
Converting AMR to AIFF runs on FFmpeg, downloads 30.8 MB of WebAssembly the first time and nothing after that, writes a lossless file that cannot recover what the source already discarded, and drops encoded streams.
| Engine | FFmpeg |
|---|---|
| Conversion path | One step: AMR → AIFF |
| Downloaded to your browser | 30.8 MB, once, then cached by your browser |
| Quality | Lossless output, but nothing is recovered |
| 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 an AMR file?#
An AMR file holds speech compressed with Adaptive Multi-Rate, the narrowband codec 3GPP standardized in 1999 for GSM phone calls, which is why voice memos and MMS voice messages recorded on older phones end up in this format.
There is rarely a reason to keep audio as AMR once it is off the phone that made it, since the format exists for the transmission link, not for storage.
Convert AMR to MP3 or WAV so an old voice memo or MMS recording opens in ordinary media players and editing software, keeping in mind the recording will still sound like a phone call because that ceiling was set at capture, not by the format.
What is an AIFF file?#
An AIFF file stores uncompressed PCM audio samples in Apple's Audio Interchange File Format, a structure the company built on Electronic Arts' IFF in 1988 for professional and Mac-native audio.
Use AIFF for recording and editing on macOS, where it's the native uncompressed format for tools like Logic Pro and GarageBand.
Convert AIFF to WAV for compatibility with non-Apple software, or to FLAC or MP3 once editing is done and the file needs to be smaller for distribution.
AMR to AIFF questions people ask#
Why are my voice memos and MMS recordings AMR files?
AMR is the speech codec GSM and 3G phones use for voice calls, so many phones' voice recorder apps and MMS voice messages reused the same codec rather than encoding a separate format. That link to phone-call audio is also why AMR recordings sound like a phone call, thin and narrowband, rather than like a full-range voice recording.
What plays AMR files?
VLC plays AMR files on every major platform, and Android's own voice recorder and messaging apps read them natively since AMR originated on that ecosystem. Standard desktop media players such as Windows Media Player or QuickTime generally do not.
What should I convert AMR to?
Convert AMR to MP3 or WAV so the recording opens in any media player or editor. Converting will not improve the sound, since AMR only ever captured the narrow speech frequency range a phone call uses, and no conversion can add back detail the codec discarded at recording time.
Is AIFF a lossless format?
Yes, AIFF is lossless: it stores raw, uncompressed PCM audio samples with nothing removed or approximated, so what you hear back is identical to what was recorded. Unlike FLAC, standard AIFF doesn't compress the audio at all, so there's no encode-decode step where anything could go wrong.