M4V to WMV Converter
Convert M4V to WMV online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an M4V file?
The M4V file format is a video container format developed by Apple Inc., derived directly from the MPEG-4 Part 14 (MP4) specification. It is primarily utilized to encode video files-such as movies, TV episodes, and music videos-distributed through the Apple iTunes Store. Functionally similar to MP4, M4V files frequently employ Apple's FairPlay DRM (Digital Rights Management) protection to prevent unauthorized reproduction, though unprotected files exist. The container typically encapsulates H.264 or H.265 (HEVC) video data alongside AAC or Dolby Digital (AC-3) audio streams.
How to open an M4V file
Files protected by FairPlay DRM can only be decrypted and opened using Apple QuickTime Player or the Apple TV app on authorized devices associated with the purchasing Apple ID. Unprotected M4V files function identically to standard MP4 files and are natively supported on macOS. On Windows and Linux, unprotected M4V files can be opened by renaming the extension to .mp4 or by using cross-platform media players like VLC Media Player and MPC-HC without modification.
M4V Technical Info
- Full Name
- iTunes Video File
- Developed By
- Apple Inc.
- Initial Release
- 2003
- MIME Type
- video/x-m4v
What is a WMV file?
Windows Media Video (WMV) refers to a series of video codecs and their corresponding coding formats developed by Microsoft, typically encapsulated in the Advanced Systems Format (ASF) container. The format evolved through several iterations (WMV7, WMV8), culminating in WMV9, which was standardized by SMPTE as VC-1 (SMPTE 421M). WMV utilizes inter-frame compression and was originally designed for internet streaming applications and the Windows Media framework, supporting variable bit rate (VBR) and digital rights management (DRM).
How to open a WMV file
WMV files open natively in Microsoft Windows environments via Windows Media Player and the Movies & TV app. On macOS, native support is absent, requiring third-party tools such as VLC media player or the legacy Flip4Mac component for QuickTime. Cross-platform suites like MPlayer and DivX Player also support the ASF container and VC-1 codec family required to render WMV content.
WMV Technical Info
- Full Name
- Windows Media Video
- Developed By
- Microsoft
- Initial Release
- 1999
- MIME Type
- video/x-ms-wmv
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Purpose-built for speed, privacy, and breadth of format support.
Convert M4V to WMV in seconds
Every M4V to WMV conversion runs on our servers, so your device stays fast and the output quality stays intact.
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No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
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Developer API
Convert M4V to WMV via API
Automate M4V to WMV conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "m4v-to-wmv",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "wmv"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.m4v
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.