An MP3 plays everywhere, but it is a poor file to edit: every further save in a compressed format throws away more detail. This free mp3 to aiff converter turns an MP3 into an uncompressed AIFF that editors like Logic Pro and GarageBand handle cleanly, so cuts, fades and level changes work on full audio instead of compressed audio. Everything runs in your browser, so your file is never uploaded and no signup is needed. The honest limits: the AIFF output is 16-bit PCM, and detail already lost when the MP3 was made does not come back. Converting does not restore quality, it only stops further loss while you edit.
How to use this mp3 to aiff converter
From a portable MP3 to an edit-ready AIFF.
Choose an .mp3 file, a song, a podcast episode or a voice memo.
Decoding and AIFF writing happen on your own device, so nothing is uploaded.
Save the uncompressed file and drop it straight into your editor timeline.
Why this mp3 to aiff converter is the right first step before editing
Edit in AIFF, share in MP3. Each format does the job it is built for.
Once the audio is in AIFF, further edits, fades and level changes no longer stack compression damage on top of compression damage.
AIFF is the native uncompressed format of macOS editors, so Logic Pro and GarageBand open it without a fuss.
The sample rate and channel layout of the decoded audio are carried into the AIFF, which is written as 16-bit PCM.
Decoding and encoding happen on your own device, so unreleased mixes and personal recordings never leave your browser.
MP3 to AIFF Converter FAQs
Short, direct answers to the questions readers ask most.
No. MP3 compression already discarded detail, and no converter can put it back. The gain is that editing in AIFF avoids losing more detail on every later save.
Uncompressed 16-bit PCM audio with the decoded sample rate and channels preserved. It is larger than the MP3 because nothing is compressed away.
Because it stores every sample in full instead of compressing them. That size is the price of an edit-friendly file, and it is why you edit in AIFF but share in MP3.
Yes. AIFF is a standard uncompressed format on macOS, and both editors accept it as a normal audio import.
Yes. It runs entirely in your browser, with no account, no signup and nothing uploaded.
Related Tools
More free converters that work the same way — right in your browser.
Repackage a WAV recording as an AIFF for Apple workflows, in your browser.
OGG to AIFF ConverterTurn an OGG track into an uncompressed AIFF for editing, in your browser.
OPUS to AIFF ConverterTurn an Opus file into an AIFF for Apple editors, in your browser.
FLAC to AIFF ConverterTurn a lossless FLAC track into an AIFF for Apple workflows, in your browser.
Try the related tools above, or go back to the Convertion homepage for more free converters.
