Bulk M4A to AIFF Converter Online — Free HD Quality
Drag and drop your multiple M4A files into this 100% free online M4A to AIFF converter (.m4a to .aiff), and click the Convert button to bulk convert them to AIFF format in HD quality. Use the quality slider to fine-tune your AIFF output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original M4A files are removed from our servers right after. Also see:How to convert AAC to MP3?.
Drop your M4A files here to convert to AIFF, or click to browse
Converts .m4a to AIFF (.aiff) in HD quality — bulk, free, no signup
Choose FilesM4A vs AIFF — File Format Comparison
See how M4A and AIFF compare across file extension, MIME type, compression, and feature support. Related:Best AMR to WAV converter online.
| Feature | M4A | AIFF |
|---|---|---|
| File Extension | .m4a | .aiff |
| MIME Type | audio/mp4 | audio/aiff |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
What Is M4A Format?
MPEG-4 Audio — AAC audio in an MP4 container, the standard format for Apple Music, iTunes purchases, and iPhone voice memos, offering better quality than MP3 at equivalent bitrates. See also:M4A to M4R converter - no registration.
- Compression: Lossy
- Tags & Metadata: Supported
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. You might also need:AIFF to iPad Audio converter.
- Compression: Lossless
- Tags & Metadata: Supported