Convert WMV to MP4.
WMV is Microsoft's old video format, fine on Windows, awkward everywhere else. Convert it to MP4 so it plays on a Mac, an iPhone, in a browser, or in any editor.
Inside The Conversion
See The Input. Inspect The Result.
A real WMV to MP4 conversion using a sample file. Compare the files below, then use the converter above with your own file.
Recorded Sample
Converted on the server in this run.
earthrise-apollo-8.wmv
earthrise-apollo-8.mp4
Previews show the sample files from this recorded conversion. Choose Input or Result to focus on one file.
View The Original Run Capture
A screenshot of the completed run, preserved in its original theme. The comparison above adapts to your current theme.
A Windows format in a non-Windows world
.wmv was everywhere on Windows for years. It's what a lot of camcorders, old screen recorders and PowerPoint exports produced. The catch is that it leans on Microsoft's Windows Media codecs, so the moment a file lands on a Mac, an iPhone, or in a browser-based editor, it stops cooperating. MP4 with H.264 is the lingua franca that fixes that.
Done entirely on our engines
The conversion runs on ffmpeg, a free, open-source engine, not a paid third-party API. Your file goes to a private bucket, gets converted, and is deleted after 1 hour.
Got a recorded meeting or lecture?
Send the MP4 to TranscriptAI for a transcript, summary and notes, a fast way to turn an hour of WMV footage into something searchable.
How it works
- 01
Add your WMV
Drop one or many files, or click to browse. Private by default.
- 02
Convert on our server
WMV becomes MP4 (H.264) with ffmpeg, no paid API in the loop.
- 03
Download or transcribe
Grab your MP4, or send it to TranscriptAI for a transcript of the audio.
Plays on Mac, iPhone, Android and the web
H.264 video with faststart for instant playback
Private uploads, auto-deleted after 1 hour
Batch convert many clips at once
No watermark, no signup to try
Transcript-ready output
WMV to MP4: transcode
WMV and MP4 are container/codec formats, so this re-encodes the video (a lossy step. Start from the best source you have). MP4 is broadly compatible, which helps when a player, editor or site won't accept WMV.
Need more than a conversion?
Send your audio or video to TranscriptAI to generate a transcript, summary, structured notes, flashcards, quiz questions or action items: automatically.
Common questions
Why won't my WMV play on a Mac or iPhone?+
WMV uses Microsoft's Windows Media codecs, which Apple devices and most browsers don't ship. Converting to MP4 (H.264) swaps it to the codec everything supports.
Is it free?+
Yes. Convert WMV to MP4 free. No signup and no watermark. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Is my file private?+
Uploads go to a private bucket, are converted, and auto-delete after 1 hour. Files never touch a third-party converter.
Will the quality hold up?+
We preserve resolution and frame rate and re-encode at high quality. For typical footage the change is hard to notice.