Convert AIFF to FLAC
Ethical Tube's free AIFF to FLAC converter turns AIFF audio files into FLAC, lossless compressed audio. It runs entirely in your browser, so your audio files are never uploaded, and it's free with no sign-up or watermark. The first conversion downloads the FFmpeg engine (10 MB) once, and it's cached after that.
Files are converted on your device and never uploaded.
- Price
- Free
- Uploads
- None, it runs on your device
- Sign-up
- Not needed
- Batch
- Unlimited files
- Output
- FLAC, lossless
- First use
- 10 MB download, once
How it works
How to convert AIFF to FLAC
Add your AIFF files
Drop AIFF files onto the converter, click to choose them, or paste from the clipboard. Add as many as you like.
Check the settings
FLAC is already selected. There's nothing to adjust, because FLAC keeps the full quality of the source.
Download your FLAC audio files
Each file gets its own download button as soon as it's ready. Download all saves everything in one ZIP file.
The formats
AIFF and FLAC at a glance
What is an AIFF file?
AIFF is Apple's uncompressed audio format, the Mac counterpart of WAV. It keeps a recording's full quality and is used in Logic Pro, GarageBand, and professional audio work, but files are large: about 10 MB per minute of CD-quality stereo. It opens in Mac (Music, QuickTime, GarageBand, Logic Pro), iPhone, VLC, Audacity, and most audio editors on Windows.
What is a FLAC file?
FLAC compresses audio without losing any quality, usually to about half the size of a WAV file. Music collectors and hi-res music stores use it because it keeps CD-quality or better audio bit for bit. It opens in Windows 10 and 11, Android, VLC, foobar2000, browsers, and most hi-fi players. On iPhone and Mac it plays in the Files app, QuickTime, and VLC, but the Music app can't import it.
Good to know
What changes when you convert AIFF to FLAC
- Both formats are lossless, so the sound is identical.
- The audio is saved as lossless FLAC.
- AIFF files are converted with FFmpeg running in your browser.
- The first conversion downloads FFmpeg compiled to WebAssembly (10 MB). It's cached, so later visits start quickly.
- Copy-protected (DRM) files can't be converted.
- Very long videos can run out of memory, especially on phones.
FAQ
Questions, answered
Is this AIFF to FLAC converter free?
Yes. It's completely free, with no sign-up, no watermark, and no limit on how many files you convert. It costs Ethical Tube nothing to run, because the conversion happens on your own device rather than on a server.
Are my files uploaded anywhere?
No. The conversion runs inside your browser with FFmpeg compiled to WebAssembly, so your files never leave your device. Once the page and the engine have loaded, it even works offline.
Does converting AIFF to FLAC lose quality?
No. FLAC is lossless, so nothing is lost in the conversion. It can't add back quality that wasn't in the source, though.
Can I convert several AIFF files at once?
Yes. Add as many as you like. They're converted one after another, and you can download each FLAC file as soon as it's ready or all of them in one ZIP file.
Does it work on iPhone, Android, Mac, and Windows?
Yes, in any current browser on a computer or phone. FFmpeg runs on your processor without hardware acceleration, so long videos are much faster on a computer.
What can open a FLAC file?
Windows 10 and 11, Android, VLC, foobar2000, browsers, and most hi-fi players. On iPhone and Mac it plays in the Files app, QuickTime, and VLC, but the Music app can't import it.
Is there a file size limit?
There's no upload limit because nothing is uploaded. The practical limit is your device's memory: everyday files are fine, and a computer can usually handle recordings several hours long.
Keep converting
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