How to convert a video to MP4
- 1
Drop your video
MOV, MKV, WebM or MP4.
- 2
Choose the format
MP4 plays everywhere; WebM is made for websites.
- 3
Nothing else needed
If the codec fits, the video is copied without re-encoding.
- 4
Export
Most conversions finish in about a second.
Popular ways to use it
iPhone MOV to MP4
Make iPhone videos play on Windows, Android and every website.
OBS MKV recordings
Turn MKV captures into MP4 for editors and social apps.
Web video
Export WebM for smaller files on your website.
Upload rejections
Fix "unsupported format" errors on upload forms.
Tips for the best result
- MOV → MP4 is usually a lossless copy that finishes in about a second.
- Choose MP4 unless a website specifically asks for WebM.
- Add "Compress" to convert and shrink in the same export.
Convert format — FAQ
Is converting MOV to MP4 lossless?
Usually yes — iPhone MOV files contain H.264/HEVC video that can be re-wrapped into MP4 without re-encoding.
Is converting lossless?
When the video inside is already compatible (like most iPhone MOVs), it is copied without re-encoding — zero quality loss.
Can I convert HEVC video?
Yes, where your browser can decode HEVC (Safari, Chrome and Edge on most devices).
Can I convert to MP3?
Yes — choose Audio in the Export as panel, or use "Video to MP3".