Choose your file
Add one supported file.
ON YOUR DEVICE
Compress video
Make a smaller MP4 with a choice of quality and resolution.
Drop your file here
One file · Device-dependent capacity · Best for short clips
Files stay on your device
Three simple steps
Choose quality and size
Try balanced quality first. A lower maximum height can help reduce larger videos.
Check and download
Preview the result and save your copy. Keep your original file.
Common questions
Is a smaller file guaranteed?
No. Compression depends on the original codec, bitrate and scene complexity. An already compact video may get larger.
Do my files leave my device?
Files are processed inside this browser. The site downloads its processing software, but your selected files are not sent to a conversion server.
Which files can I use?
Common MP4, MOV, MKV and WebM videos are accepted. The codec inside a file must also be supported. DRM-protected media cannot be converted.
How large can a file be?
Select up to 100 images per batch, or one audio or video file per job. There is no fixed file-size or processing-time quota. Available memory, browser support and your device determine what can be processed. Large batches offer individual downloads to avoid an additional ZIP copy.