Bulk AIFF to AAC Converter Online — Free HD Quality
Drag and drop your multiple AIFF files into this 100% free online AIFF to AAC converter (.aiff to .aac), and click the Convert button to bulk convert them to AAC format in HD quality. Use the quality slider to fine-tune your AAC 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:Save OGA as MP3.
Drop your AIFF files here to convert to AAC, or click to browse
Converts .aiff to AAC (.aac) in HD quality — bulk, free, no signup
Choose FilesAIFF vs AAC — File Format Comparison
See how AIFF and AAC compare across file extension, MIME type, compression, and feature support. Related:How do I change AIFF to ALAC?.
| Feature | AIFF | AAC |
|---|---|---|
| File Extension | .aiff | .aac |
| MIME Type | audio/aiff | audio/aac |
| Compression Type | Lossless | Lossy |
| 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:Quick M4A to AIF online converter.
- Compression: Lossless
- Tags & Metadata: Supported
What Is AAC Format?
Advanced Audio Coding — the successor to MP3 adopted by Apple, YouTube, and mobile platforms; delivers better quality than MP3 at the same bitrate, especially below 128 kbps.
- Compression: Lossy
- Tags & Metadata: Supported