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Convert WMV to MP4 Online


CONVERT WMV to MP4 ONLINE

1) Upload WMV file to convert

 

Drop files here, or Click to select
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2) Set converting WMV to MP4 options

Convert to

 

Options

Width: Height:
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3) Get converted file

DOWNLOAD CONVERTED FILE
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close Total Movie Converter Total Movie Converter is a handy solution to convert video files of almost all popular video codecs toAVI, MPG, WMV, MPEG, FLV. In addition, Total Movie Converter is great for converting video for iPad, iPhone, Apple TV, Archos, XBox and others thanks to the new Video To Device feature.
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How to convert WMV to MP4?

1

💾 Upload Your File: Go to the site, click on «Upload File,» and select your WMV file.

2

✍️ Set Conversion Options: Choose MP4 as the output format and adjust any additional options if needed.

3

Convert and Download: Click 👉«Download Converted File»👈 to get your MP4 file.


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Cloud Based
There is no need to install any software to convert WMV to MP4 with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.
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Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.
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Ease of Use
Converting WMV video files to MP4 online has never been so simple. Drop your .wmv file and the converter decodes the Windows Media Video stream and re-encodes it as H.264 MP4 — producing a file that plays on iPhones, Android devices, Smart TVs, and every modern platform without Windows Media Player or codec packs.
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WMV File

File extension .WMV
CategoryVideo File
DescriptionWMV is a video file format compressed using Windows Media Video. It is often used for streaming and downloading videos in the Windows environment.
Associated programsWindows Media Player, VLC, KMPlayer, PotPlayer
Developed byMicrosoft
MIME typevideo/x-ms-wmv
Useful linksMore detailed information on WMV files
Conversion typeWMV to MP4

MP4 File

File extension .MP4
CategoryAudio File
DescriptionMP4 files can contain video and sound data. It is a file container that supports different multimedia content types such as multiple audio streams, subtitles, 2D and 3D image frames. MP4 is also used for streaming media services (online or digital TV). This file type supports the control of transmission speeds for media signal, as well as correcting corrupted frames. Thanks to comparatively low system requirements, MP4 is now the most popular container type for sharing media.
Associated programsApple QuickTime Player
Apple iTunes
Microsoft Windows Media Player
VideoLAN VLC Media Player
Developed byMoving Picture Experts Group
MIME type
Useful linksMore detailed information on MP4 files
Rating WMV to MP4   5 star WMV to MP4   4.9 (2191 votes)
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WMV to MP4 Converter — Frequently Asked Questions ▼

WMV is Microsoft's proprietary video format from the 2000s. Modern devices — iPhone, iPad, most Android phones, Smart TVs, and macOS — do not include Windows Media codecs by default. WMV files appear as unsupported. MP4 (H.264 in MP4 container) plays natively on every device, every video editor, and every streaming platform. Converting old WMV recordings makes them universally accessible.
Some quality loss is inherent in transcoding because WMV's VC-1 codec cannot live inside an MP4 container — the video stream must be re-encoded to H.264. At equivalent quality settings, the output looks very close to the original for typical content. For pristine quality, use a high bitrate setting in the desktop Total Video Converter.
Yes. WMA audio inside the WMV file is transcoded to AAC (the standard MP4 audio codec) during conversion. AAC at the converter's quality level is transparent for typical content — speech, music, and effects all reproduce cleanly. Stereo and mono are handled; 5.1 surround tracks are preserved if present in the source.
Apple's media frameworks (AVFoundation, QuickTime) do not include a Windows Media decoder — a Microsoft codec licensing decision. Without a third-party decoder like the discontinued Flip4Mac, WMV files show as unsupported on Apple devices. Converting to MP4 eliminates the dependency on Windows Media codecs entirely.
ASF (Advanced Systems Format) is Microsoft's container format. WMV is the video format that lives inside an ASF container with the .wmv extension; WMA is the same container with audio only and the .wma extension. They share the same underlying file structure — the extension just signals what content is inside.
The online converter accepts WMV files up to 50 MB. DVR recordings, screencasts, and long home videos often exceed this limit. For multi-gigabyte WMV files and batch conversion of entire WMV archives, use the desktop Total Video Converter — no file size limit, handles entire folders in one command.
The online converter handles one file at a time. For batch work — converting Windows Movie Maker projects, screen recording archives, or DVR backup folders — use the desktop Total Video Converter: TotalVideoConverter.exe C:\WMV\*.wmv /mp4 /out C:\MP4\. Add /codec h264 for maximum device compatibility or /quality high for archive-grade output.
 

 

Convert WMV to MP4 Online — Windows Media Video to Universal MP4

WMV (Windows Media Video) was Microsoft's dominant video format through the 2000s — built into Windows Movie Maker, captured by webcams, and burned to DVDs as a standard choice for Windows users. Today it is a legacy format: WMV files play reliably on Windows PCs, but iPhone, Android, most Smart TVs, Mac, and virtually every video editing application handle WMV poorly or not at all. MP4 is the universal successor — the format that plays natively on every device, every platform, and every editing suite. Converting WMV to MP4 brings your old home videos, screen recordings, and archived footage into the modern era, making them accessible on any screen without format errors or plugin requirements.

What Is a WMV File?

WMV (Windows Media Video) is Microsoft's proprietary video format built around the Windows Media Video codec series (WMV7 through WMV9/VC-1) and packaged in the ASF (Advanced Systems Format) container. Microsoft introduced WMV in 1999 as a streaming-optimized format and embedded it throughout Windows XP, Vista, and 7 — Windows Movie Maker saved to WMV by default, and Windows Media Player was the primary playback application. WMV was also used for DRM-protected downloads from the early Microsoft Zune and MSN Music stores. The format is technically capable but proprietary: outside the Windows ecosystem, WMV support is inconsistent and often requires codec packs or transcoding.

Who Needs WMV to MP4 Conversion?

WMV vs MP4 — Key Differences

PropertyWMV (Windows Media Video)MP4 (MPEG-4 Part 14)
DeveloperMicrosoft — proprietaryISO standard — open
Primary codecWMV7/8/9, VC-1H.264, H.265 — universal
ContainerASF (Advanced Systems Format)MP4 / ISO Base Media File Format
iPhone / iOS supportNo native supportFull native support
Android supportVaries — often unsupportedUniversal
Mac / Final Cut ProRequires codec pack or conversionNative — no plugins needed
YouTube / social uploadAccepted but slow processingPreferred — fastest processing
DRMSupported (WM DRM)No DRM — open playback

How WMV to MP4 Conversion Works

The converter parses the ASF container to extract the WMV video stream and the WMA (Windows Media Audio) audio stream. Since WMV/VC-1 is not natively supported inside an MP4 container, the video is transcoded: the VC-1 bitstream is decoded to raw YUV frames and re-encoded as H.264 at a quality setting that preserves visual fidelity. The WMA audio stream is decoded to PCM and re-encoded as AAC, which is the standard audio codec inside MP4. The transcoding process re-encodes both streams into a new MP4 container with proper interleaving and compatibility metadata for universal playback.

WMV to MP4 Use Cases

Convert from WMV

Using CoolUtils, it is possible to convert WMV files to a variety of other formats:

Convert to MP4

Using CoolUtils, it is possible to convert a variety of other formats to MP4 files:

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