Convert WMA to MP3
Rescue a Windows Media library that nothing outside Windows will open, in batches, with the tags kept.
Drop your files here
.wma · up to 200 MB
More settingsFewer settings
How to Convert to MP3
- 1
Add your WMA files
Up to 200 MB each and twenty at a time, a whole ripped album in one pass.
- 2
Choose a bitrate
192 kbps suits a typical WMA rip. Match or slightly exceed whatever the source was.
- 3
Click Convert and download
Artist, title and album come across as ID3 tags that any player reads.
Why WMA is worth getting out of
Windows Media Audio was Microsoft's answer to MP3 and it was competitive in its day. The problem is everything since: no phone plays it without extra software, macOS does not read it, most car stereos refuse it, and even Windows has quietly stopped treating it as a first-class format. Libraries ripped from CDs in the 2000s with Windows Media Player are full of it, and they are effectively stranded. Converting to MP3 is how those files become playable again, not because MP3 is better, but because MP3 is the one thing that works everywhere.
The only format here that no browser can decode
Every other converter in this section has a shortcut: browsers decode MP3, WAV, FLAC, M4A and Ogg natively through the Web Audio API, so some operations can skip the 8 MB audio engine entirely. WMA has no such path: no browser decodes it, on any platform, and there is no sign that will change. That means this page always loads the engine, and the first conversion waits for that download. It is cached afterwards, so a batch of fifty files pays the cost once.
Protected files cannot be converted
Some WMA files bought from online stores in the 2000s carry DRM, and those cannot be decoded by anything except the original licensed player on the machine that was authorised. This page will fail on them, and so will every other converter; the protection is doing its job. A file that plays in Windows Media Player on your own computer but fails here is almost certainly protected. Files you ripped from your own CDs are not protected and convert normally.
Tags survive the trip
WMA stores metadata in the ASF container, and a library ripped with Windows Media Player generally has artist, album, track number and year filled in properly. All of it is carried into the MP3 as ID3v2.3 tags, the version Windows Explorer, phones and car stereos read without complaint. Turning the option off produces a clean file with no metadata at all, which is occasionally what you want.
The conversion happens on your machine
Windows Media Audio is decoded and encoded again as MP3 by the LAME encoder in this tab, and artist, title and album become ID3 tags on the way. The engine downloads once into your browser cache; after the first conversion the page works with the network switched off. No file is uploaded, and there is no account.
Frequently asked questions
Why does the first conversion take longer?
WMA is the one format no browser can decode natively, so the 8 MB audio engine has to download first. It is cached afterwards and the rest of the batch is fast.
My WMA file will not convert — why?
It is most likely DRM-protected, which was common for files bought from online stores in the 2000s. Nothing can decode those except the original authorised player. CDs you ripped yourself convert normally.
Will the quality drop?
A little, since both formats are lossy and discard different things. Matching the source bitrate, 192 kbps for a typical rip, keeps the difference below what you will hear.
Do my tags survive?
Yes. Artist, album, track number and year are carried into ID3v2.3 tags that ordinary players read.
Can I convert a whole album at once?
Yes, up to twenty files at a time, and one failure does not cancel the rest.
Is anything uploaded?
No. Everything runs in your browser after the engine has been cached.