How to convert a .MSWMM file online
Three steps, all tab.
Open your file
Drop your .MSWMM file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.
Preview
See frames from across your .MSWMM file before you convert, even when your browser can't play the codec inside.
Convert
Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.
What is a .MSWMM file?
Everything worth knowing about Microsoft Windows Movie Maker Project.
An MSWMM file is a Windows Movie Maker project file, not a playable video. It stores your edits and references to the original clips on your PC but holds no actual footage. To open it you need the classic Windows Movie Maker (discontinued in 2017); to get a real video you must export with "Save Movie File" inside that program.
Programs that open .MSWMM files
- Windows
- Hex / text inspection (e.g. 7-Zip on the OLE streams), Windows Movie Maker (classic, XP/Vista)
| Full name | Microsoft Windows Movie Maker Project |
|---|---|
| Developer | Microsoft |
| First released | 2000 (Windows Movie Maker, Windows Me); used through the XP/Vista era |
| Category | Audio & Video |
| MIME type | application/octet-stream |
| Signature | D0 CF 11 E0 A1 B1 1A E1 (OLE2 / Compound File Binary signature (no readable text)) |
Related viewers
Other free tools to open and preview your files.
Is my .MSWMM file uploaded to a server?
No. Your .MSWMM file is converted for you. The converted file is created in memory,.
Why is conversion slower than desktop software?
Browsers give web pages a single CPU core for this kind of work and no hardware video encoder. Short clips convert in seconds; for long 4K films a desktop app like HandBrake is faster. Use Start and Length to convert just the part you need.
Which output format should I pick?
MP4 plays on every phone, TV and browser. WEBM is an open format that's great for the web. MP3 keeps only the sound. MKV (no re-encode) is instant and lossless, but only changes the container.
Can I keep all audio tracks and subtitles?
The MKV (no re-encode) option copies every track as-is. MP4 and WEBM keep the first video and audio track, which is what most players use.
Why can't some files be converted?
Files protected with DRM (for example purchased iTunes .m4p songs or some .wmv rentals) are encrypted. We can show what's inside, but nobody can convert them without the key.
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