AIFF to WMA Converter

AIFF to WMA — Should You Actually Convert to WMA?

Be honest about the target before you start. This tool re-encodes an AIFF file into Windows Media Audio (.wma), but it crosses two lines at once: AIFF is Apple's uncompressed, lossless format, while WMA is a proprietary Microsoft codec from 1999 that has been in decline for years. So you are taking a perfect Apple master and squeezing it into a lossy, legacy Windows codec — quality only goes down, and it never comes back. Do this only when a specific old Windows device or WMP-era program demands a .wma file. For a copy that plays almost everywhere, convert AIFF to MP3 instead; to stay lossless, convert AIFF to FLAC. Either way, keep your original AIFF as the master.

AIFF vs WMA at a Glance

When to Pick WMA

• An old Windows PC, Windows Mobile device, or a Zune-era / PlaysForSure library that predates modern codecs and expects .wma.
• A car head unit or home receiver whose manual lists WMA but not MP3 or AAC.
• A WMP-era program or workflow that only accepts Windows Media Audio input.
• You want native Windows Media Player playback on a Windows-only target with no extra codecs installed.

When to Pick MP3 or FLAC Instead

• You want the file to play on iPhones, Android phones, browsers, and smart speakers without extra apps — use AIFF to MP3.
• You are archiving the recording and want to keep every bit of the original — use AIFF to FLAC, which is lossless and roughly half the size of AIFF.
• The AIFF came from a Mac session and the destination is a modern device — there is rarely a reason to land on a legacy Microsoft codec.
• You care about the best quality at a given size; MP3 and FLAC both serve modern devices better than WMA.

How to Convert AIFF to WMA

1. Upload Your AIFF File: Drag and drop your .aiff or .aif file onto the page or click "+ Add Files" to browse. You can queue several files and convert them in one batch.
2. Set the Quality Preset: Open the options and pick a Quality Preset (the default is "Highest"), or switch to Constant Bitrate such as 128 or 192 kbps, a Custom Bitrate, or a Specific file size. A higher WMA bitrate keeps more detail from the lossless source.
3. Choose the WMA Codec, Channel, or Trim (optional): Under Audio Codec you can select WMA v2 (the default and most compatible) or WMA v1. Leave Audio Channel and Audio Sample Rate on "Original" to preserve the source, or use Trim to export only part of the track.
4. Convert and Download: Click "Convert" and download your WMA file. No sign-up, no watermark.

Frequently Asked Questions

Will I lose audio quality converting AIFF to WMA?

Yes, and permanently. AIFF holds uncompressed, lossless PCM — every sample of the original recording. Standard WMA is a lossy codec, so the encoder analyzes that audio and throws away detail it judges less audible to hit your chosen bitrate. That discarded information cannot be recovered by converting back later. A higher WMA bitrate (192–320 kbps) keeps the loss smaller, but it is never truly identical to the AIFF. Always keep your original AIFF file as the master and treat the WMA as a disposable playback copy.

Why would I convert an Apple AIFF master to a Microsoft WMA file?

Only for a device or program that specifically needs .wma. It is an unusual pairing — AIFF is Apple's lossless format from 1988, and WMA is a proprietary Microsoft codec from 1999 that has been declining for years and has poor support outside Windows. The honest use case is feeding a WMP-era Windows library, an old Windows-only application, or a car or home unit whose manual lists WMA but not newer formats, from recordings that happen to live as AIFF on a Mac. For anything modern, AIFF to MP3 or AIFF to FLAC is the better target.

Should I use WMA or MP3 for an old device?

Check what the device's manual actually lists. MP3 is supported on a far wider range of hardware than WMA, including most of the same old Windows-era players, so it is usually the safer pick. Choose WMA only when the target explicitly requires Windows Media Audio and will not accept MP3 — for example, certain PlaysForSure or Zune-era libraries and a handful of WMP-only workflows. When in doubt, convert to MP3 first and fall back to WMA only if the device rejects it.

Which WMA codec version does the output use?

By default the converter encodes the standard lossy Windows Media Audio codec as WMA v2, the variant the broadest range of Windows software and devices can read. You can switch to WMA v1 under Audio Codec for very old players that require it. The WMA family also includes Pro, Lossless, and Voice variants, but standard WMA v2 is the most compatible general-purpose target and the right choice for feeding a WMP-era library.

What bitrate should I choose for the WMA output?

Since the source is lossless, a higher WMA bitrate preserves more of it. For music, 192–320 kbps keeps the conversion close to the original; 128 kbps is acceptable for casual playback or speech where file size matters more. In our testing, a 3-minute 16-bit/44.1 kHz stereo AIFF that was about 30 MB came down to roughly 4.4 MB as 192 kbps WMA v2, since the output size tracks the WMA bitrate you pick rather than the size of the AIFF source. Lower bitrates shrink the file further but discard more detail.

Will my title and artist tags carry over to the WMA?

WMA stores metadata in Microsoft's ASF container, while AIFF tagging is more limited and varies between applications. Common fields such as title and artist usually carry across where a direct equivalent exists, but less standard tags or embedded artwork may not map cleanly between the two systems, so check the tags in your Windows player after converting. If you need richer, more consistent tagging instead, FLAC preserves far more metadata than either AIFF or WMA.

What happens to my files after I convert them?

Your AIFF file is uploaded over an encrypted connection, converted on our servers, and deleted automatically a few hours after conversion — it is never shared or made public. There is no sign-up, no watermark, and no file-count limit. The main practical limit on a large AIFF is upload size and time, since uncompressed audio files can be big.