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將 MP3 轉換為 WMA

Free online MP3 to WMA converter. Fast, secure, no signup required.

12.9K+ files converted

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Accepted: MP3 files · Max 100 MB per file

mp3 wma

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Need to convert MP3 to WMA? MegaConvert makes it easy. Upload your MPEG Audio Layer III (MP3) file and get a Windows Media Audio (WMA) file in seconds — no software to install, no signup required. Whether you need this conversion for music playback, podcasting, device compatibility / web streaming, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert MP3 to WMA Online

  1. 1
    Upload your MP3 file

    Click the upload area or drag and drop your MP3 file. Files up to 25MB are free. Larger files are supported with pay-per-use.

  2. 2
    Choose WMA as output format

    WMA is automatically selected on this page. You can adjust conversion settings if needed.

  3. 3
    Click Convert

    Hit the Convert button to start processing. Your file will be converted using our high-performance servers.

  4. 4
    Download your WMA file

    Once conversion is complete, click Download to save your new WMA file. Free files are available for 1 hour.

Why Convert MP3 to WMA?

  • **Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
  • **Software requirements** — Your software or platform may require WMA format specifically. Converting ensures full compatibility.

MP3 vs WMA — Format Comparison

Feature MP3 WMA
Full Name MPEG Audio Layer III Windows Media Audio
Developer Fraunhofer Society Microsoft
First Released 1993 1999
Category Audio Audio
Extension .mp3 .wma
MIME Type audio/mpeg audio/x-ms-wma

Converting from lossy to lossless does not improve quality. Start from lossless source when possible.

About MP3 Format

Most popular lossy audio compression format, widely used for music distribution.

Full name: MPEG Audio Layer III

Developer: Fraunhofer Society (1993)

About WMA Format

Microsoft's audio compression format competing with MP3 and AAC.

Full name: Windows Media Audio

Developer: Microsoft (1999)

常見問題

Upload your MP3 file to MegaConvert.io, select WMA as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.
Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.
Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.
Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.
Most popular lossy audio compression format, widely used for music distribution. Developer: Fraunhofer Society (1993).
Microsoft's audio compression format competing with MP3 and AAC. Developer: Microsoft (1999).