Bulk AIFF to FLAC Converter Online — Free HD Quality
Drag and drop your multiple AIFF files into this 100% free online AIFF to FLAC converter (.aiff 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 AIFF files are removed from our servers right after. Also see:MP3 to M4A - free, no signup.
Drop your AIFF files here to convert to FLAC, or click to browse
Converts .aiff to FLAC (.flac) in HD quality — bulk, free, no signup
Choose FilesAIFF vs FLAC — File Format Comparison
See how AIFF and FLAC compare across file extension, MIME type, compression, and feature support. Related:PCM to MP3 converter - no registration.
| Feature | AIFF | FLAC |
|---|---|---|
| File Extension | .aiff | .flac |
| MIME Type | audio/aiff | audio/flac |
| Compression Type | Lossless | Lossless |
| Metadata Support | Yes | Yes |
What Is AIFF Format?
Audio Interchange File Format — Apple's uncompressed audio standard functionally equivalent to WAV but preferred in professional Apple audio workflows and GarageBand projects. See also:Convert M4A to OPUS.
- 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. You might also need:Turn AIF into MP2.
- Compression: Lossless
- Tags & Metadata: Supported