Convert AIFF to FLAC
Free AIFF to FLAC converter that runs entirely in your browser. No uploads, no signup required.
Drop AIFF files here
or browse your device. Free, no signup required, no watermarks.
Files are processed on your device, never uploaded
Media conversions run on a full FFmpeg engine compiled to WebAssembly. The engine (~31 MB) downloads once on your first conversion, then everything runs locally.
Three steps
How to convert AIFF to FLAC
Add your files
Drop AIFF files into the box above, or click it to browse. Add several to batch convert.
Convert
FLAC is already selected as the output. Hit Convert. Your browser does the work locally.
Download
Save each converted FLAC file. Pro ZIPs whole batches in one click.
Audio Interchange File Format
AIFF
AIFF is Apple's uncompressed audio format, the Mac equivalent of WAV, common in music production.
Free Lossless Audio Codec
FLAC
FLAC compresses audio to about half the size of WAV with zero quality loss. It is the audiophile's archive format.
Why convert AIFF to FLAC?
AIFF is Apple's uncompressed audio format, the Mac equivalent of WAV, common in music production. FLAC compresses audio to about half the size of WAV with zero quality loss. It is the audiophile's archive format. Converting from AIFF to FLAC gets you the best of the target format wherever AIFF falls short, whether that's compatibility, file size, or what your apps and devices can open. With FormatFusion the switch takes seconds and your files stay on your device the whole time.
Questions
AIFF to FLAC: common questions
Is this AIFF to FLAC converter free?
Yes. It is completely free with no watermarks and no account required, for files up to 1 GB each. Convert one file or a hundred.
Is it safe to convert AIFF files here?
Safer than any upload-based converter. The conversion runs locally in your browser, so your AIFF files are never sent over the internet and never touch a server.
Will I lose quality converting AIFF to FLAC?
No. This conversion preserves your content, and FLAC output keeps everything the format supports.
Can I convert multiple AIFF files at once?
Yes. Free converts up to three AIFF files at a time. FormatFusion Pro batches without limits and downloads whole runs as a single ZIP.
Does it work on iPhone and Android?
Yes. FormatFusion runs in any modern mobile or desktop browser. No app install needed.