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Convert MP3 to AIFF

Convert MP3 to AIFF on your device. Choose your file, convert, and check the result before sharing.

Drop your .mp3 here
or click to browse
TO
Processed on your device - nothing is uploaded.
HOW IT WORKS
1

Drop the mp3 file

Drag your MP3 onto the page or click to browse. It is read locally, never sent anywhere.

2

Choose AIFF

AIFF output is always 16-bit PCM, so there is no quality or bitrate menu. Click Convert to start processing in this tab.

3

Save the aiff

The finished AIFF downloads straight back to your device. Nothing touched a server on the way.

Why convert here, not there

No upload, ever

Your mp3 file is decoded and re-encoded by code in this tab - a song, a memo, a podcast never leaves the device.

Local conversion

No upload time for a big mp3 file, no server queue, no waiting on a download link.

No account, no daily cap

No daily caps, no "3 conversions left", no email wall. Convert the whole mp3 library.

The two formats, briefly

MP3MP3 is a lossy audio format. This converter encodes it at the selected bitrate rather than copying the original audio stream.
AIFFAIFF is an audio container. This converter writes 16-bit PCM audio; a higher-bit-depth source can lose precision.

When you need this

  • Decode MP3 for an editor or workflow that asks for AIFF PCM audio. This output is 16-bit, not an enhancement of the original recording, and can be much larger than compressed audio.

MP3 vs AIFF: what changes

MP3AIFF
KindAudioAudio
CompressionLossy audio16-bit PCM output here
Typical sizeDepends on the file and encoding settings.Measure the exported file; it may be larger.
Opens onCheck the source in your app and browser.Check the downloaded file in the receiving app.
Best forKeep the original as your source.AIFF workflows, subject to the limits below.

Keep the original. Compare the exported file before sharing or replacing it.

Good to know

  • AIFF output here is 16-bit PCM. There is no bitrate choice; converting a higher-bit-depth source can reduce precision.
  • First use downloads the audio/video engine (about 30 MB). The input cap is 2 GB, but available browser memory can run out below that.

MP3 to AIFF, answered

Why convert MP3 to AIFF?+
Decode MP3 for an editor or workflow that asks for AIFF PCM audio. This output is 16-bit, not an enhancement of the original recording, and can be much larger than compressed audio.
Which quality should I pick?+
AIFF output here is 16-bit PCM. There is no bitrate choice; converting a higher-bit-depth source can reduce precision.
Does converting MP3 to AIFF lose quality?+
The export uses 16-bit PCM. It cannot recover detail already lost in a compressed source, and a higher-bit-depth source is reduced to 16-bit. Keep the original if precision matters.
Is there a file size limit?+
The hard cap is 2 GB per file. The practical limit is your device: conversion runs in its memory, so very large files can fail on phones with little free RAM. There is no server-side cap because nothing is uploaded.
Does my file get uploaded anywhere?+
No. The file is read and converted by code running in this browser tab. Your file is never sent to a server - its contents stay in this tab.

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