Bulk AIF to FLAC Converter Online — Free HD Quality
Drag and drop your multiple AIF files into this 100% free online AIF to FLAC converter (.aif to .flac), and click the Convert button to bulk convert them to FLAC format in HD quality. Use the quality slider to fine-tune your FLAC output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original AIF files are removed from our servers right after. Also see:M4A to OPUS converter.
Drop your AIF files here to convert to FLAC, or click to browse
Converts .aif to FLAC (.flac) in HD quality — bulk, free, no signup
Choose FilesAIF vs FLAC — File Format Comparison
See how AIF and FLAC compare across file extension, MIME type, compression, and feature support. Related:Best AIF to AIFF converter online.
| Feature | AIF | FLAC |
|---|---|---|
| File Extension | .aif | .flac |
| MIME Type | audio/aiff | audio/flac |
| Compression Type | Lossless | Lossless |
| Metadata Support | Yes | Yes |
What Is AIF Format?
Audio Interchange File Format (short extension) — the .aif variant of AIFF used by older Apple software and some DAWs; functionally identical to .aiff with the same uncompressed PCM quality. See also:Batch process AIF to AAC.
- Compression: Lossless
- Tags & Metadata: Supported
What Is FLAC Format?
Free Lossless Audio Codec — open-source lossless compression that reduces file size by 40–60% versus WAV with zero quality loss, perfect for audiophile archiving.
- Compression: Lossless
- Tags & Metadata: Supported