MP3 to WMA converter
Convert MP3 to WMA in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.
Fit Meter
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Leave both at 0 for the whole file.
Bytes of your files sent anywhere: 0 B · nothing leaves this tab
Every request this page makes is listed as it happens. You’ll see our own code loading, and for some formats a codec engine, but never your file going out.
- Waiting for network activity…
Check it yourself: open your browser’s developer tools on the Network tab, or turn off Wi-Fi once the page has loaded. The tools keep working.
Related conversions
Need it the other way round? Convert WMA to MP3Read more about the MP3 format and the WMA format, or see every audio tool and all audio conversions.
Should you convert MP3 to WMA?
Fine when a player or app needs WMA. Converting between two lossy formats compresses the sound a second time, so match or exceed the original bitrate to keep the loss inaudible.
MP3 is the most compatible lossy audio format ever made; WMA is the Windows Media audio format from the Windows XP era. Choose WMA only for an old Windows device; convert your WMA rips to MP3 or M4A to play them anywhere.
How to convert MP3 to WMA
- 01
Add your MP3
Drop your MP3 file onto the box, or click to choose it. It is read from your disk and stays there.
- 02
Check the settings
The output is already set to WMA. Change the bitrate if you want to; the defaults suit most files.
- 03
Save the WMA
Press convert and save the WMA. Several files come back together as a ZIP.
What changes when MP3 becomes WMA
Two rounds of compression
Each lossy encode throws away a little more. A MP3 at 128 kbps converted to WMA at 192 kbps sounds like the original; converted at 96 kbps it can turn swirly and dull.
Who needs WMA
Choose WMA only for an old Windows device; convert your WMA rips to MP3 or M4A to play them anywhere.
The size stays about the same
MP3 and WMA are close in size for the same content, so do this for compatibility rather than to save space. MP3: About 1 MB a minute at 128 kbps, 2.4 MB at 320 kbps. WMA: Similar to MP3.
This page is put together from our notes on each format, choosing only what is true of MP3 and WMA, so every pairing states the same facts the same way. How these pages are made.
Why it doesn’t upload
Recordings are often private: interviews, voice notes, unreleased music. Your browser can decode and encode audio itself, so there is no reason to send it anywhere.
How to check for yourselfWorth knowing
- About the MP3. Converting a low-bitrate MP3 to 320 kbps makes it bigger without making it sound any better; what was thrown away is gone.
- About the WMA. WMA files bought from old online stores are often DRM-protected; no converter can open those.
- MP3, WAV, M4A, OGG, Opus and FLAC are converted by your browser directly. WMA, AMR, APE, AC3 and the other specialist formats use the FFmpeg engine, a one-time 31 MB download.
Questions
Does converting MP3 to WMA lose quality?
WMA is lossy, so a little is discarded, but at the default bitrate the difference is inaudible for nearly everyone.
Will a WMA play in my car or on my phone?
WMA a legacy format: Windows and VLC; not iPhones, Macs, most Android apps or browsers.
Read more about this
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