Convert AAC to AIFF
Convert AAC files to AIFF locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
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How to convert AAC to AIFF
- Drop your .aac files above, or click Upload Files. You can add many files at once.
- AIFF is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .aiff files as soon as each one finishes.
What to know about AAC to AIFF conversion
- Converting a lossy AAC to AIFF cannot restore detail that was already discarded, but it avoids any further loss in later edits.
- You can choose the bitrate, sample rate and channels (mono, stereo or a 3D spatial effect).
AAC vs AIFF
| Feature | AAC (Advanced Audio Coding) | AIFF (Audio Interchange File Format) |
|---|---|---|
| Compression | lossy | uncompressed |
| Best for | good quality at low bitrates for streaming | professional audio work on macOS |
| Opens in | Apple devices, browsers and most media players | Logic Pro, GarageBand, iTunes and most DAWs |
AAC (Advanced Audio Coding): A lossy digital audio compression format designed as the successor to MP3, offering higher sound quality at similar bitrates.
AIFF (Audio Interchange File Format): An uncompressed audio format developed by Apple, the Mac equivalent of WAV.
Conversion options
- 16-bit or 24-bit PCM
- Sample rate: 22.05, 44.1 or 48 kHz
- Mono, stereo or 3D spatial audio
- Playback speed (0.5× to 2×)
Frequently asked questions
Is it safe to convert AAC to AIFF here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several AAC files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert AIFF to AAC.
Convert AAC to other formats
Convert other formats to AIFF
- MP4 to AIFF
- MP3 to AIFF
- WAV to AIFF
- MOV to AIFF
- M4A to AIFF
- FLAC to AIFF
- WEBM to AIFF
- MKV to AIFF
- OGG to AIFF
- OPUS to AIFF
- AVI to AIFF
- WMA to AIFF
See every AAC converter and AIFF converter, or browse the full converter directory.