AIFF Converter Free & Private
Apple's uncompressed audio standard. Convert AIFF Audio files entirely in your browser — no upload, no account.
About AIFF Audio
AIFF (Audio Interchange File Format) is Apple's equivalent of WAV — uncompressed, lossless PCM audio in a container developed for Macintosh in 1988. It stores identical audio data to WAV but uses big-endian byte order and supports richer metadata. AIFF is common in professional music production on macOS, particularly in Logic Pro and older Pro Tools sessions.
Technical details
| Container | AIFF (.aiff, .aif) |
| Video codecs | N/A (audio only) |
| Audio codecs | PCM (uncompressed), AIFF-C (compressed variant) |
| Max resolution | N/A |
| Streaming | Not designed for streaming |
| Metadata | Name, Author, Comments, Markers, Instrument chunks |
Best for
macOS music production (Logic Pro, GarageBand), professional audio editing, sampling
Advantages
- Perfect audio fidelity — zero compression
- Native to macOS audio workflows
- Supports loop points and instrument metadata (useful in sampling)
- Better metadata support than WAV
Limitations
- Enormous file sizes (same as WAV — ~10MB per minute)
- Less commonly supported on Windows and Android
- No compression benefit over WAV
Convert AIFF to other formats
AIFF compatibility
macOS, Logic Pro, GarageBand, Pro Tools, iTunes, VLC; most Windows players via codec packs
Why privacy matters for file conversion
Most online converters upload your files to remote servers where they may be scanned, stored, or shared. This tool is different — the conversion runs in your browser via WebAssembly or the WebCodecs API. Your files stay on your device. Always.
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Frequently asked questions
They're technically equivalent — both store uncompressed PCM audio. Use AIFF if you're in an Apple/Logic Pro workflow; use WAV for cross-platform compatibility. For archival, FLAC is better than either (same quality, half the size).
Yes, completely free with no file limits. The conversion engine runs directly in your browser — we have zero server costs for processing, so we can offer it at no charge.
Your file never leaves your device. The conversion engine runs 100% in your browser using WebAssembly or the WebCodecs API. We have no access to your files — no uploads, no logs, no data collection whatsoever.
On desktop browsers (Chrome, Firefox, Edge) files up to 500 MB convert reliably. On Safari (macOS) the practical limit is around 200 MB. On iPhone and iPad, keep files under 50 MB — iOS enforces tight memory limits for browser-based processing.
On your first visit, the browser downloads the conversion engine (24–50 MB depending on which backend is used). This is cached locally, so subsequent conversions load much faster.
Chrome, Edge, and Brave use hardware-accelerated WebCodecs when the format is supported — this is 5–10× faster than software encoding. For unsupported formats the tool falls back to ffmpeg.wasm, where Firefox typically performs best.
Utterly is a privacy-first transcription app for Apple devices. It uses on-device AI to transcribe and translate audio — no cloud, no subscription required to start. This free converter is brought to you by the Utterly team.