Convert MP3 to WMA
Convert MP3 files to WMA locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert MP3 to WMA
- Drop your .mp3 files above, or click Upload Files. You can add many files at once.
- WMA is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .wma files as soon as each one finishes.
What to know about MP3 to WMA conversion
- You can choose the bitrate, sample rate and channels (mono, stereo or a 3D spatial effect).
MP3 vs WMA
| Feature | MP3 (MPEG-1 Audio Layer III) | WMA (Windows Media Audio) |
|---|---|---|
| Compression | lossy | lossy |
| Best for | music libraries and playback on any device | Windows Media Player libraries |
| Opens in | every phone, car stereo, browser and media player | Windows Media Player, VLC, mpv and most media players |
MP3 (MPEG-1 Audio Layer III): The most popular lossy audio compression format, which revolutionized digital music sharing.
WMA (Windows Media Audio): A lossy audio codec and container developed by Microsoft for Windows Media Player.
Conversion options
- Bitrate from 96 to 320 kbps
- Sample rate: 22.05, 44.1 or 48 kHz
- Mono, stereo or 3D spatial audio
- Playback speed (0.5× to 2×)
Frequently asked questions
Is it safe to convert MP3 to WMA here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several MP3 files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert WMA to MP3.
Convert MP3 to other formats
Convert other formats to WMA
- MP4 to WMA
- WAV to WMA
- MOV to WMA
- M4A to WMA
- FLAC to WMA
- WEBM to WMA
- MKV to WMA
- AAC to WMA
- OGG to WMA
- OPUS to WMA
- AVI to WMA
- AIFF to WMA
See every MP3 converter and WMA converter, or browse the full converter directory.