Turn supported AIFF recordings into MP3 delivery files, preserving the source for editing and making encoder limits explicit.
On-device audio processing
Convert your audio
Free to use · No sign-up
Loading the local audio converter. Choose a file, review its detected format and output settings, then convert and check the download.
Three simple steps
Keep your original
1
Choose your audio
Select a recording and check the detected codec, rate and channels.
2
Choose an output
Review the resolved quality settings and any required changes.
3
Check and download
Read the warnings, listen and test the saved file in its destination.
From an editing file to a delivery file
AIFF commonly holds uncompressed integer PCM used by music and editing tools. MP3 can be more convenient for a recipient, but it is a lossy export. Retain the AIFF session render if you may need to edit or encode again.
AIFF variants need inspection
The reader checks uncompressed AIFF and its actual integer PCM representation. AIFF-C/AIFC and compressed variants are not supported. For MP3, qualified 16/24-bit mono/stereo input is preserved into the encoding stage. A 32-bit integer AIFF can use the WAV preservation route, but this MP3 path refuses it rather than silently truncating.
Check a production requirement
If a collaborator asks for an MP3 reference mix from your 48 kHz AIFF, choose MP3 and review the resolved bitrate. If they want stems for further editing, they may actually need the AIFF or WAV master. Confirm the request before spending time converting a collection.
Review the beginning and end
Encoder priming and end padding are part of the qualification checks, but still listen to the actual download in the recipient's player. Check channel count, duration and tags. See AIFF to WAV for an integer preservation alternative and precision explained.
Testable preview. Keep your originals and check downloaded results. Send useful feedback without attaching private recordings.
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Can WAV restore quality lost in an MP3?
No. WAV can preserve the decoded signal without a new lossy encoding, but cannot recreate information already discarded.
Why was my file or output refused?
The actual codec, precision, layout or timing may fall outside the qualified subset. The app explains the restriction rather than silently reducing quality. See supported formats.
Does the maximum file size work on every device?
No. Limits are refusal ceilings. Browser quota and available memory may require smaller files. Physical mobile testing has not been performed for this preview.