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Convert WMA to MP4 Online

Upload your WMA file, choose MP4 as the target format, and convert instantly in your browser or with the full UniConverter desktop app. Online suits quick single files, while desktop handles larger libraries, more control, and heavy, repeated tasks.

For more powerful WMA to MP4 conversion needs, UniConverter Desktop gives you much more:

  • Convert WMA to MP4 in batch and save time on large files
  • Enjoy up to 130× faster conversion speed
  • Support for 1,000+ audio/video/image formats
  • An all-in-one toolkit including editing, enhancement, and more
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Try It Free
Try It Free

How to Convert WMA to MP4 Online or on Desktop

upload mkv format file
Step 1

Import your WMA file from any device

Open UniConverter Online in your browser and upload your WMA file directly from computer, cloud, or mobile for a quick one-off WMA to MP4 conversion. For big or multiple files, launch the desktop UniConverter, drag an entire folder of WMA tracks into the main window, and prepare them together.

choose mp4 as output format
Step 2

Choose MP4 as the output format

In the online WMA to MP4 converter, simply pick MP4 as the target format for a fast, straightforward output that works on phones and PCs. On the desktop app, also select MP4, but refine things further by adjusting bitrate, resolution, and other export settings to balance audio quality and file size for large or batch jobs.

download converted mp4 video
Step 3

Convert WMA and save your MP4 file

Click Convert in the online tool to process your WMA file on the server, then download the finished MP4 and share or play it instantly. With the desktop UniConverter, start the conversion to handle many WMA files at once, then save all MP4 outputs locally, organize them into folders, and sync to phones or external drives.

What Are WMA and MP4, and Why Convert?

WMA
MP4
File Extension .wma .mp4
Full Name Windows Media Audio MPEG-4 Part 14
Description WMA is a Windows Media audio format created by Microsoft, designed for efficient compression. It works well on Windows PCs and some legacy players but can be incompatible with many phones, browsers, and modern streaming or editing workflows. MP4 is a universal container format that usually holds video plus audio but can also store audio-only content. It offers excellent compression and compatibility with Android, iPhone, Windows, macOS, smart TVs, and websites like YouTube and social platforms.
Associated Programs Windows Media Player, VLC media player, Foobar2000, Groove Music VLC media player, QuickTime Player, Windows Media Player, iTunes, MX Player
Initial Release 1999 2001
Developer Microsoft Moving Picture Experts Group (MPEG)
Common Use Cases Legacy music collections, audio files from old Windows PCs, downloaded tracks from older online stores, voice recordings saved in Windows Media format Online video distribution, phone and camera recordings, social media uploads, cross-platform playback for both audio and video content
MIME Type audio/x-ms-wma video/mp4

Why Use UniConverter for WMA to MP4 Conversion

Online WMA to MP4 Converter, No Installation

Convert WMA to MP4 online free directly in your browser. Upload, choose MP4, and download the result in a few clicks, ideal for quick, occasional tasks without installing extra software or creating an account.

Desktop Power for Batch WMA to MP4 Jobs

Use the UniConverter desktop app when you need to convert many WMA files to MP4 at once. Batch processing speeds up large music libraries and big projects, something not available in the online tool.

Adjustable Export Settings on Desktop

On desktop, fine-tune MP4 output with adjustable bitrate, sample rate, resolution, and other parameters. This lets you balance quality and file size for intensive or professional workflows; such detailed export controls are not provided in the online converter.

1000+ Formats Supported for Future Projects

Beyond WMA to MP4, UniConverter supports 1000+ formats, covering popular and niche audio, video, and device presets. Start with your current Windows Media audio files, then reuse the same tool whenever you need other format conversions later.

Secure Online Conversion with Auto File Cleanup

When you convert WMA to MP4 online, transfers are encrypted and files are kept only as long as needed for processing. Temporary uploads are automatically cleared, helping protect private recordings, music collections, and sensitive audio content.

Smooth Playback on Phones, PCs, and Platforms

Exported MP4 files work across Windows, macOS, Android, iPhone, tablets, and most web platforms. Turn hard-to-play WMA tracks into MP4 that opens in default players, editing apps, and sharing services without extra codecs or plugins.

Free Download
Convert Online
Free Download
Convert Online
Free Download
Convert Online

WMA to MP4 Conversion FAQs

Open the UniConverter WMA to MP4 converter in your browser, upload your WMA file, pick MP4 as the output, and hit Convert. After processing, download the MP4 to your computer or phone. For bigger batches or extra control, install the desktop version and follow similar steps.
Yes, you can usually convert a WMA audio file to an MP4 container with very little audible quality loss. The online tool uses sensible defaults for everyday listening. If you care more about quality, use the desktop converter and raise the bitrate or adjust parameters before exporting.
On Windows 10 or macOS, you can either use the online WMA to MP4 converter in your browser or download the UniConverter desktop app. Import your WMA files, select MP4 as output, optionally tweak settings on desktop, then convert and save the resulting MP4 files locally.
The online converter uses encrypted connections and stores your WMA uploads only for the time needed to process them into MP4. Files are automatically cleaned afterward. For highly sensitive recordings, you may prefer the desktop app, which keeps everything on your own computer.
For occasional single WMA to MP4 jobs, the online converter is enough. If you need to process a large music library or many folders, the desktop UniConverter is the better choice. It lets you add multiple WMA files, convert them to MP4 in one go, and organize the outputs efficiently.

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Start Converting WMA to MP4 Now

Upload a WMA file to the online converter for a quick MP4 download, or install the desktop UniConverter to batch-process entire folders with adjustable settings. Switch formats once and enjoy smooth playback everywhere.
Free Download Upload WMA File
Free Download Upload WMA File
Free Download Upload WMA File
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