AIFF (Audio Interchange File Format) is Apple's native lossless audio container — the Mac equivalent of WAV. Both formats store raw PCM audio, so converting between them is completely lossless: no quality is lost or gained. The difference is compatibility. WAV is the lingua franca of audio production software on Windows and Linux; many tools that accept WAV reject AIFF simply because of the container. This converter remuxes any AIFF file into a WAV in your browser — no upload required.
AIFF vs WAV — what's the difference?
AIFF and WAV both store uncompressed PCM audio, which means the audio content is identical. The differences are in the container. AIFF uses big-endian byte order and stores chunks in Apple's IFF-derived format; WAV uses little-endian and wraps chunks in Microsoft's RIFF format. Both can hold 16-bit and 24-bit audio at any sample rate. From a sound-quality standpoint, AIFF and WAV are indistinguishable — the only reason to convert is software compatibility. If a DAW, video suite, broadcast encoder, or client machine balks at AIFF, the WAV version is bit-identical in quality and accepted everywhere.
How this converter works
FFmpeg compiled to WebAssembly runs directly in this browser tab. It reads the AIFF container, extracts the raw PCM frames, and rewrites them in a WAV (RIFF) container — no re-encoding, just a container swap. The sample rate, bit depth, and channel layout of the source are preserved exactly. Because both formats hold PCM, there is no lossy step: this is a bit-perfect remux. The entire conversion happens on your device with no server, no upload endpoint, and no copy of your file sent anywhere.
When to use this tool
- Bringing Logic Pro, GarageBand, or older macOS exports into Windows-native production software
- Delivering audio to broadcast, post-production, or game pipelines that require WAV input
- Sending a file to a collaborator on Windows where AIFF support may be missing or broken
- Archiving old macOS music libraries or CD rip collections in a universally readable format
- Feeding AIFF source files into video editors (Premiere, DaVinci Resolve, Final Cut exports) that prefer WAV
Frequently asked questions
- Does converting AIFF to WAV lose quality?
- No. AIFF and WAV both store uncompressed PCM audio. This converter remuxes the raw PCM data from one container to the other without re-encoding. The output WAV is bit-identical to the input AIFF — no quality is added or removed.
- What sample rate and bit depth does the output WAV use?
- The converter preserves the source AIFF's sample rate (commonly 44.1 kHz, 48 kHz, or 96 kHz) and bit depth (16-bit or 24-bit). No resampling or dithering is applied. Drop in a 24-bit / 96 kHz AIFF and you get a 24-bit / 96 kHz WAV out.
- Is there a file size limit?
- 200 MB. A 24-bit stereo AIFF at 44.1 kHz runs about 30 MB per minute, so the limit covers several minutes of studio-quality audio in one session.
- Does it work on iPhone and Android?
- Yes — any modern Chrome, Edge, Firefox, or Safari with WebAssembly support. Conversion runs on your device's CPU; large high-resolution files take longer on mobile, but the output is identical.
Privacy
Your AIFF file is never uploaded. The container swap happens entirely in this browser tab using FFmpeg.wasm. We have no server-side audio pipeline — your file doesn't leave your device at any point in the conversion.