AIF
AIFF Audio
The same format as AIFF, written with a shortened three-letter extension.
Commonly used for
Mac audio editing
AIF to FLAC Converter
Convert AIF files to FLAC free in your browser — no signup, no install, and the file is never uploaded to a server. FLAC keeps full quality with no further loss.
Completely free
Files are never uploaded
No signup required
Drop files or click to select
AIF → FLAC
What changes in this conversion
- The audio is decoded and re-encoded into FLAC. Playback length and channel layout stay the same; the difference is the codec and the resulting file size.
How to use
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Add your AIF file
Drag the AIF file onto the drop area above, or click it to pick a file from your device. You can add several files at once.
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Confirm FLAC as the output
FLAC is already selected as the output format on this page. You can pick the bitrate — higher keeps more of the sound, lower makes a smaller file.
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Run the conversion
Press the convert button. Audio decodes and re-encodes in your browser — a normal song finishes in a few seconds.
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Download the FLAC file
When it finishes, download the FLAC file. Converting multiple files gives you the option to download them together as a ZIP.
About these formats
FLAC
FLAC Lossless Audio
A lossless format that preserves 100% of the original quality while roughly halving the size of a WAV. It is the standard among audiophiles.
Commonly used for
High-fidelity music archives, audiophile listening
Frequently asked questions
Is converting AIF to FLAC really free?
Yes. AIF to FLAC conversion is completely free with no signup, no watermark, and no daily limit on the free plan for ordinary use.
Are my AIF files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so the AIF file never leaves your device. That is also why it works without an internet connection once the page has loaded.
Does the FLAC file get bigger than the AIF?
It can go either way. Both formats are lossless, so nothing is thrown away — the size difference comes from how each one packs the same data.
Is there a file size limit for AIF to FLAC conversion?
The free plan handles files up to 200MB. Because processing happens on your own device, very large files depend on your computer's memory rather than a server quota.
Convert AIF files to other formats
Convert other formats to FLAC
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What each file format is, what it is used for, and which formats it can be converted to.
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