Add your WAV file
Drop one or more .wav files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
WAV to AIFF
Re-encoding .wav audio as .aiff changes how the sound is compressed and which players will accept it. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop WAV files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting WAV audio to Audio Interchange File
Re-encoding .wav audio as .aiff changes how the sound is compressed and which players will accept it. A .wav file is Microsoft's Waveform Audio format, which in practice almost always stores uncompressed PCM samples. Because every bit of the original signal is preserved and no decoding is required, .wav remains the default working format in recording studios and audio editors.
An .aiff file is Apple's Audio Interchange File Format, storing uncompressed PCM audio much as WAV does on Windows. Mac-based studios have exchanged .aiff masters for decades, and Logic Pro sessions and sample libraries remain full of them. For this route the practical draw is bit-perfect audio identical in fidelity to WAV and loop and marker metadata that samplers actually read — balanced against as bulky as any uncompressed format, which is worth knowing before you commit a large batch.
Why convert WAV to AIFF?
WAV and AIFF hold the same thing — raw PCM samples — and differ mainly in byte order and chunk names, so this is the closest audio gets to a pure rename. It matters because studio tooling has never fully agreed: Logic Pro sessions, older Mac sample libraries, and a fair number of hardware samplers expect AIFF, while Windows recorders emit WAV. Converting costs nothing in fidelity and the file size barely moves, which is exactly what you want when the destination is an edit, not a listener.
WAV vs AIFF at a glance
| Aspect | WAV audio (.wav) | Audio Interchange File (.aiff) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | a RIFF chunk container whose fmt chunk usually declares linear PCM, though compressed codecs are technically permitted | classic AIFF stores big-endian PCM, the opposite byte order from WAV, in COMM and SSND chunks |
| Strongest at | capturing and mixing sessions in a DAW | delivering masters from macOS-based studios |
| Weak spot | enormous compared with FLAC, which halves the size losslessly | as bulky as any uncompressed format |
| Metadata | rIFF INFO chunks hold basic tags, while the Broadcast Wave bext chunk and iXML add description, originator, and timecode for production workflows; some tools also embed ID3 chunks | nAME, AUTH, and ANNO chunks provide basic text, marker and instrument chunks store loop data, and an ID3 chunk is a common unofficial extension used by iTunes |
Pick AIFF as the output
Select .aiff in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if AIFF is selectable, the route is real and validated.
Convert on your device
Press Convert. The transcode runs on an FFmpeg engine compiled to WebAssembly, so the audio never leaves your device.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid AIFF file. Outputs keep the original filename with the .aiff extension.
WAV to AIFF questions, answered
Will converting WAV to AIFF lose quality?
Both sides are re-encoded, so expect a small generation loss controlled by the quality setting: wav is lossless-oriented and aiff is lossless-oriented. For visually or audibly transparent results keep quality high; for smaller files lower it and compare.
Is it private to convert WAV files here?
Yes — the .wav file is processed inside your browser tab and never uploaded. The transcode runs on an FFmpeg engine compiled to WebAssembly, so the audio never leaves your device. Close the tab and the file is gone from memory.
Where will the AIFF file work?
macOS and all serious audio software open .aiff without hesitation, and Windows editors generally support it even though WAV is their default. Browsers offer partial support at best, and the format's size makes it a poor web choice regardless.
Will the AIFF file be bigger or smaller than my WAV?
It depends on the content: classic AIFF stores big-endian PCM, the opposite byte order from WAV, in COMM and SSND chunks. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my WAV file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, rIFF INFO chunks hold basic tags, while the Broadcast Wave bext chunk and iXML add description, originator, and timecode for production workflows; some tools also embed ID3 chunks; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert AIFF back to WAV?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .wav → .aiff → .wav is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.