UniConverter
UniConverter Online Free
Converter video, audio & image free
Free Try

MP4 to WMV Converter Online

Convert MP4 to WMV online free in your browser with UniConverter. Upload a video, pick WMV as output, start the conversion, then download and play it smoothly on Windows or older devices without installing heavy software.

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

  • Convert MP4 to WMV 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
Batch Convert MP4 to WMV
Batch Convert MP4 to WMV
Batch Convert MP4 to WMV

How to Convert MP4 to WMV with UniConverter

upload mkv format file
Step 1

Upload your MP4 file

Click the upload area to add a video from your computer. Wait for the file to finish loading, then confirm the video name and size so you know the correct clip is ready for conversion.

choose mp4 as output format
Step 2

Choose WMV as the output format

In the format list, select WMV as the target format for your Windows playback needs. Check the resolution label shown by default in the desktop version, and if you need higher compatibility for older devices, keep the suggested standard settings unchanged.

download converted mp4 video
Step 3

Start converting and download the WMV

Hit the convert button and let the tool process your video on the server. When the status shows completed, click download to save the new WMV file, then play it in Windows Media Player or share it with clients who require this format.

MP4 vs WMV: Why Change Video Format

MP4
WMV
File Extension .mp4 .wmv
Full Name MPEG-4 Part 14 Windows Media Video
Description A widely used digital multimedia container format that can store video, audio, subtitles, and images with efficient compression, making it ideal for streaming, online sharing, and playback across modern devices and platforms. A video format created by Microsoft, optimized for Windows and Windows Media technologies, often delivering good quality at smaller file sizes, especially suitable for legacy systems, presentations, and business environments.
Associated Programs VLC media player, QuickTime Player, Windows Media Player, iTunes, Most web browsers Windows Media Player, VLC media player, RealPlayer, Microsoft PowerPoint
Initial Release 2001 1999
Developer Moving Picture Experts Group (MPEG) / ISO Microsoft
Common Use Cases Online video streaming, social media uploads, smartphone recordings, video editing exports, cross-platform sharing Playback on Windows PCs, Windows Media Player compatibility, corporate training videos, legacy device distribution
MIME Type video/mp4 video/x-ms-wmv

Key Features for Smooth MP4 to WMV Conversion

Free online MP4 to WMV conversion in your browser

Use the web-based video converter to turn a single MP4 file into WMV without installing software or creating an account. It is ideal for quick, occasional format changes when you just need one video ready for Windows playback.

Secure online processing with quick downloads

Files are processed on secure servers and available to download as soon as conversion finishes. You can close the tab after saving your WMV, keeping your workflow simple while avoiding permanent online storage of your private videos.

Optimized WMV output for Windows and old devices

Whether you use the online tool or the desktop app, the output is standard WMV that plays smoothly in Windows Media Player, many presentation setups, and some older hardware, helping you meet client or organizational format requirements.

Desktop batch conversion for multiple MP4 videos

The desktop UniConverter lets you import many MP4 clips at once and convert them together to WMV, saving time on large projects. This local workflow is more stable for heavy workloads and avoids repeated uploads for each individual file.

Advanced WMV settings for quality and file size control

In the desktop app you can fine-tune parameters such as resolution, bitrate, and frame rate when exporting WMV. This helps you preserve visual clarity, keep original motion smoothness, or deliberately shrink files for easier sharing and playback.

Reliable offline conversion for big or long videos

Large MP4 files and long recordings convert more reliably inside the desktop software, because everything happens locally without depending on upload speed or browser stability. This reduces the risk of timeouts, failed jobs, or partial outputs.

Batch Convert Now
Convert Online
Batch Convert Now
Convert Online
Batch Convert Now
Convert Online

MP4 to WMV Conversion FAQs

Yes, you can use the browser-based tool to upload a video, choose WMV as output, and start conversion at no cost. It is designed for occasional, single-file tasks, with a simple interface that avoids registration, complex settings, or confusing menus.
For better control over picture clarity, use the desktop application instead of only relying on automatic presets. There you can increase bitrate, keep the original resolution, and match the source frame rate, which helps preserve detail and smooth motion.
Neither format is automatically higher quality; results depend on encoder, bitrate, and settings. WMV can be efficient for Windows playback, while MP4 is more universal. If compatibility with Windows Media Player matters most, creating a WMV copy is practical.
VLC includes a basic convert feature that can export to certain Windows formats, but the interface and profiles may feel technical. Windows Media Player itself is mainly for playback, so for straightforward, guided conversion, a dedicated converter is usually easier.
Choose the local app when handling large or numerous files, needing batch jobs, or adjusting detailed output parameters. Browsers work well for small, simple tasks, while dedicated software delivers more stability, speed, and precise control over final results.

“Wondershare Video Converter is hands down one of the best tools I’ve added to my creative toolkit. It’s fast, easy to use, and incredibly powerful. Whether I need to convert large video files into different formats, compress them without losing quality, or even edit and trim clips, this software handles it all with ease.”

— TG

“I have been using Wondershare UniConverter for many years. It has been one of the best ways to download, screen capture and convert videos. It has been my go to for video download and conversion.”

— Alan Horner

“Wondershare has so many assets, not just for downloading media. You can convert to other formats. You can create GIFs and clean up videos. There are way too many assets you can use with WonderShare UniConverter that it's a MUST for any video editor or graphics designer. It's worth every penny.”

— P.rajotte

“Simple to use, music, pic, video, all can edit or convert, Make my work faster and easy”

— gyn

“Over the years, Wondershare Uniconverter has really transformed into a powerhouse of tools. You can download, convert, crop, compress, enhance the quality, remove the background and do ton of other useful ops. We can do it for Video, Audio, and images, either individually or in batches.”

— Sura Mukkavilli

“Wondershare UniConverter has completely exceeded my expectations! The software is incredibly fast, easy to use, and supports a wide range of file formats. I was able to convert large videos in just minutes without losing quality. The interface is clean and intuitive, making it beginner-friendly while still offering advanced features for power users. ”

— CHEUNG SIN LIM

“Wondershare Video Converter is hands down one of the best tools I’ve added to my creative toolkit. It’s fast, easy to use, and incredibly powerful. Whether I need to convert large video files into different formats, compress them without losing quality, or even edit and trim clips, this software handles it all with ease.”

— TG

“I have been using Wondershare UniConverter for many years. It has been one of the best ways to download, screen capture and convert videos. It has been my go to for video download and conversion.”

— Alan Horner

What Users Say About UniConverter MP4 to WMV Tools

★ ★ ★ ★ ★
Rated 4.9/5
Based on 1,643 reviews
Upload icon

Explore More Format Conversion

Explore More Features

Ai Video Enhancer Ai Video Enhancer

AI Video Enhancer
Auto Highlight Auto Highlight

Watermark Remover
Ai Image Enhancer Ai Image Enhancer

AI Image Enhancer
4k video converter 4k video converter

4K Video Converter
hd photo converter hd photo converter

HD Photo Converter
Noise Remover Noise Remover

Noise Remover
Vocal Remover Vocal Remover

Vocal Remover
AI Portrait AI Portrait

Video Background Changer

Start Your MP4 to WMV Conversion Today

Use the online converter to quickly change a single MP4 into WMV, or install the desktop UniConverter for fast, stable batch processing and finer control over quality on both Windows and Mac devices.
Batch Process Now Upload MP4 File
Batch Process Now Upload MP4 File
Batch Process Now Upload MP4 File
uniconverter image compressor