WAV to WMA
Shrink huge WAV recordings into compact WMA files — right in your browser, nothing uploaded.
Drag & drop your WAV files here, or click to choose. Everything runs in your browser — nothing is uploaded.
WAV is uncompressed PCM audio: perfect quality, but roughly 10 MB per minute for CD-quality stereo, so one long recording can swallow hundreds of megabytes. WMA (Windows Media Audio) is Microsoft's lossy format, and converting to it shrinks those files dramatically for Windows Media Player, older Windows software, or any workflow that specifically asks for WMA. This converter runs entirely inside your browser using a WebAssembly build of FFmpeg, so your WAV files are never uploaded to a server, there is no queue, and there is no size cap beyond your own device's memory. Drop in several files at once and they convert one after another. Pick a bitrate from 96 to 320 kbps (192 kbps is the default), preview each result inline, and download it.
Frequently Asked Questions
How do I convert WAV to WMA?
To convert WAV to WMA, first set the Bitrate dropdown above the drop area (96k, 128k, 192k recommended, 256k, or 320k), then drag and drop your WAV files onto the drop area or click it to choose them. Conversion starts automatically, and each finished WMA file appears with a Download button. Set the bitrate before you add files, since it is read at the moment each file is converted. You can drop several WAV files at once; they are processed one after another, and every finished row shows the new filename, its size, an inline preview player, and its Download button. Everything runs in your browser through a WebAssembly build of FFmpeg, so your audio is never uploaded to a server.
Does converting WAV to WMA reduce the audio quality?
Yes, some quality is lost. WAV is uncompressed and stores every sample exactly, while WMA is a lossy format that permanently discards audio data in order to make the file much smaller. A higher bitrate keeps more of the original detail, so 256 or 320 kbps stays far closer to the source WAV than 96 kbps does. Keep your original WAV if you might need to re-encode later, because whatever the WMA encoder removes cannot be added back.
Why convert WAV to WMA instead of MP3?
Convert to WMA when something in your workflow specifically expects it, such as Windows Media Player, older Windows software, or a device or system that lists WMA as its required format. If you just want a smaller file that plays everywhere, MP3 or AAC is the safer choice, because WMA is poorly supported outside Windows. Most iPhones, Android music apps and car stereos will not open a WMA file at all.
Which bitrate should I choose for my WMA file?
192 kbps, the default, is a solid balance for music and stays close to the source WAV at a small fraction of its size. Choose 256 or 320 kbps when you want the encode to hold on to as much of the original as possible, and 96 or 128 kbps for speech, podcasts or when file size matters most. Bitrate is the main quality dial here, and detail lost at a low bitrate cannot be recovered later.
Is there a limit on how big my WAV file can be?
There is no size limit imposed by this site, because your WAV never leaves your device and the only real ceiling is how much memory your browser and device have available. That also means no upload wait and no queue, however long the recording is. WAV grows fast at around 10 MB per minute, so very large files, roughly over a few hundred megabytes, can be slow or run out of memory on a phone. Use a desktop browser for long recordings.
Is this WAV to WMA converter really free and private?
Yes. It is completely free with no signup, no account, no watermark and no software to install, and it is private by design because the conversion runs inside your browser using a WebAssembly build of FFmpeg. Your WAV files are never uploaded to any server, so confidential recordings stay on your own machine. The first conversion downloads the roughly 32 MB converter engine once; your browser then caches it, so later conversions start instantly.
Does it work on a Mac, iPhone or Android phone?
Yes, the converter works in any modern browser on Windows, Mac, Linux, iPhone and Android, so you can produce a WMA file from any of them. Playing the result is a separate question: WMA is a Microsoft format that most iPhones, Android music apps and car stereos cannot open. If the file is destined for a non-Windows device, convert your WAV to MP3, AAC or M4A instead. On phones, stick to shorter files.