Bulk AIFF to AAC Converter Online — Free HD Quality
Drag and drop your multiple AIFF files into this 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 — your original AIFF files are removed from our servers right after.
Drop images here or click to browse
PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
AIFF vs AAC — File Format Comparison
| 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.
- 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
Related Converters
- Convert 3GA files to M4B in queue
- Turn CR2 into PDF
- DCR to JPG - free, no signup
- DPX to WEBP converter
- Export EPS as JPG
- How to convert M4P to AAC online?
- How to convert MIDI to AIF?
- MIDI to MP3 converter
- Free OGA to OGG converter
- How to batch convert PAM to BMP?
- Get PPM from PICT
- Turn PNG into AVIF
- Convert SR2 files in bulk to PBM
- Bulk convert TIFF to RAS
- Get PNG from WAVE
- Convert AIFF to other formats
- All AAC conversion options
- Browse all Audio converters
- All file conversion tools