Convert your .flac files to .aiff format online for free. No software to install. Fast, secure, and easy.
Pro account required for audio & video
Drag and drop your .flac file or click to browse.
Select AIFF as your output format.
Click Convert and download your .aiff file.
Converting FLAC to AIFF changes the container or codec while preserving full audio quality. This is useful when your target device or application requires a specific audio format.
FLAC (Free Lossless Audio Codec, introduced in 2001) uses Lossless (linear prediction + Rice coding) compression. AIFF (Audio Interchange File Format, introduced in 1988) uses None (PCM); AIFF-C supports compressed variants compression. FLAC browser support: All modern browsers (Chrome, Firefox, Edge; Safari 11+). AIFF browser support: Limited (Safari; partial support in Chrome and Firefox).
Both FLAC and AIFF use lossless compression. The conversion preserves 100% of the original data — the output file is pixel-for-pixel (or sample-for-sample) identical to the input. No quality is lost during this conversion.
Typical FLAC file size: A 4-minute song at 44.1 kHz/16-bit: ~20-30 MB. Typical AIFF file size: A 4-minute song at 44.1 kHz/16-bit stereo: ~40 MB.
For the best conversion results, always start from the highest quality source file available. Converting from a previously compressed file compounds any existing compression artifacts. When in doubt, use higher quality settings — you can always re-convert at lower quality later, but you cannot recover quality that has been lost.
Convert FLAC to AIFF with 3 free conversions per day. No hidden fees.
Create a free account in 10 seconds and start converting immediately. No credit card required.
Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion.
Convert files from any device — desktop, tablet, or phone. No software to install, works in any modern browser.
SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.
Your converted .aiff file maintains the best possible quality. No unnecessary compression or quality loss.
Audio conversion requires a Pro account. See pricing — starting at $4.99/month
You get 3 free conversions per day. Audio conversions require a Pro account.
Most files convert in under 10 seconds. Larger files may take a bit longer depending on size.
Yes. Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion. We never store your files.
Currently, SquishConvert converts one file at a time. Batch conversion is coming soon — stay tuned!
Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.