AIFF to WMA Converter

AIF to WMA Converter

An .aif file is uncompressed PCM audio in Apple's Audio Interchange File Format — the Mac counterpart to Windows' WAV. WMA (Windows Media Audio) is Microsoft's lossy format, built on the ASF container and tied to the Windows ecosystem. This converter re-encodes a Mac-side AIF master into a .wma file for the narrow case where a legacy Windows program or Windows Media Player library specifically demands that extension; for anything modern, AIF to MP3 or AIF to AAC travels much further.

AIF (AIFF) Format at a Glance

WMA (Standard) Format at a Glance

How to Convert AIF to WMA

1. Upload Your AIF File: Drag and drop your .aif or .aiff file onto the page, or click "Add Files" to browse. Queue several at once and they all run with the same settings.
2. Pick a Quality Preset: Leave Quality Preset on the recommended setting, or open the dropdown (Highest down to Lowest) to trade size against fidelity. The page defaults to the WMA v2 codec; from an uncompressed AIF, 128-192 kbps stays transparent to most listeners.
3. Set the Bitrate or Codec (Optional): Switch to Constant Bitrate or Custom Bitrate for an exact rate, or open Audio Codec to pick WMA v1 for an unusually old target. Audio Sample Rate, Audio Channel, and Trim stay on Original unless you change them.
4. Convert and Download: Click Convert and save your .wma file individually or as a ZIP. No sign-up, no watermark.

Frequently Asked Questions

Is AIF the same thing as AIFF?

Yes. .aif and .aiff are the same Audio Interchange File Format — the three-letter spelling is a holdover from the old DOS/Windows 8.3 filename limit, while macOS tends to write the four-letter .aiff. Both hold the same uncompressed PCM audio inside IFF chunks and convert identically here. The related .aifc extension is AIFF-C, a variant that adds support for compressed payloads; plain AIFF is always uncompressed.

Will I lose quality converting AIF to WMA?

WMA is lossy, so the encode permanently discards data the AIF held. The good news is that a real .aif is an uncompressed PCM master, so this is a clean first-generation encode — there are no inherited artifacts from an earlier compression to stack on top of. At 128-192 kbps the standard WMA codec sounds transparent to most listeners. Because the loss is irreversible, keep your AIF as the editing master and treat the WMA as a disposable export.

Which WMA codec does this output — WMA v1 or WMA v2?

It defaults to WMA v2, the slightly refined of Microsoft's two original 1999 standard codecs and the right choice for almost everyone. WMA v1 is the very first 1999 release; the bitstream was altered in minor ways to become v2 the same year. (The later "WMA 9" branding refers to the 2003 generation that added variable and average bitrate modes, not a separate v9 codec in this dropdown.) Both v1 and v2 share the ASF container, so tagging and playlists behave the same — pick WMA v1 only for a device old enough to predate v2 support.

Why convert a Mac AIF to a Windows-only format like WMA?

The honest answer is narrow compatibility, not quality. This is a Mac-to-Windows-legacy crossing: you start with an Apple uncompressed format and target Microsoft's aging codec because one specific old Windows application, a Windows Media Player library, or a Windows-era device lists .wma among its inputs. WMA holds detail a little better than MP3 below about 64 kbps, but at 128 kbps and up they are broadly comparable, and Microsoft's old "half the size of MP3" claim was disputed by independent listening tests. For any modern use, AAC or MP3 is the better target.

Will my WMA file play outside of Windows?

Mostly not natively. WMA is fundamentally a Windows and Windows Media Player story. Some third-party players such as VLC and foobar2000 decode it, and certain car stereos and DLNA devices accept it, but Apple's Music app, most smartphones, and many modern browsers do not. If you need the audio to play broadly, keep a lossless cross-platform copy with AIF to WAV, and reserve .wma for the one program or device that demands it.

Should I keep the original AIF after converting?

Yes — always, if you might edit or re-export. Your .aif is the lossless source; the WMA is a lossy delivery copy. Re-encoding a WMA again later stacks compression loss, whereas you can regenerate a fresh WMA (or MP3, or AAC) from the AIF master at any bitrate without that penalty. Archive the AIF and keep the WMA disposable.

How are my files handled, and how long do you keep them?

Files are uploaded over an encrypted connection, converted on our servers, and deleted automatically a few hours after conversion — never shared, never made public, with no sign-up and no watermark. In our testing, a 3-minute uncompressed stereo AIF (about 31 MB of PCM) re-encoded to a 192 kbps WMA v2 produced a file of roughly 4.3 MB with no audible loss.