Video Format Converter
Convert local video to MP4, WebM or MOV without uploading it.
Local processing · No uploads · No sign-in
Processing and output
MP4 and MOV use H.264/AAC. WebM uses VP8/Opus and can take longer to encode.
Does my video get uploaded?
No. Selected video, audio, subtitles and fonts are processed in this browser. They are not submitted to a video processing server.
What settings does Video Format Converter offer?
MP4 and MOV use H.264/AAC. WebM uses VP8/Opus and can take longer to encode.
Is MOV output the same as a transparent MOV?
No. This converter exports H.264 video in a MOV container without an alpha channel. Renaming or converting a file to MOV does not create transparency.
Which video format is best for sharing?
H.264 MP4 is a practical choice for broad compatibility. WebM uses VP8/Opus in this tool, while MOV contains H.264/AAC. Playback still depends on the target app's codec support.
Can I process large files on a phone?
Modern browsers are supported. Combined inputs are limited to 300 MB on desktop and 100 MB on phones or low-memory devices, with lower default output resolution. Merge up to 8 clips. Short clips work best; transitions, compression and conversion can take time.
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