No-upload size reducer
Reduce video size without uploading it.
Make a video smaller with local compression. The selected source file stays in this browser tab.
Reduce size without upload
Lower file size with local MP4 compression.
Your selected video is processed in this browser tab. It is not uploaded to a conversion server.
Ready.
Reducing size without upload uses local compression
The page re-encodes your video with smaller output settings while keeping the selected file on your device.
Best settings and limits
Best first try
Try Balanced at 720p first. Use Smallest file at 480p if the output is still too large.
When this may fail
Compression cannot guarantee an exact target size. Long videos, high motion, and 4K sources may still produce large outputs.
Privacy boundary
The selected video file stays on your device while the tool creates the output.
Frequently asked questions
Can I reduce video size without uploading?
Yes. This tool processes the selected video locally in your browser tab.
Is this different from compress video?
It uses the same compression workflow, focused on the no-upload privacy concern.
What if the smaller file is still too big?
Use a lower resolution, stronger compression, or trim the video before compressing.