Resize Video

Change the resolution and frame rate of any clip.

  1. Add
  2. Adjust
  3. Make
  4. Keep
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How to use this tool

  1. Add your files — drag them onto the page or choose them. They stay on your device.
  2. Choose the target Resolution (720p is the default) and optionally a new frame rate.
  3. Pick the output container and quality, then run — the picture is scaled to fit, never stretched.
  4. Press “Resize videos” and download the results, individually or as one ZIP.

About this tool

Change the resolution and frame rate of any clip. Free and unlimited, and nothing is uploaded: it all runs in your own browser. Everything is analysed and produced on your own device — nothing is uploaded anywhere, and you can verify it: the tools keep working even offline.

Privacy & limitations

Files over roughly 2 GB, or long 4K videos, can exhaust the browser's memory — everything runs on your machine, so your machine is the limit. Upscaling beyond the source resolution adds pixels, not detail; it will look soft at full screen.

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Frequently asked questions

Does lowering the resolution make the file much smaller?

Yes, more than almost anything else. Going from 4K to 1080p removes three quarters of the pixels, and the file size follows closely.

Can I make a video higher resolution?

You can set a larger frame, but it will not add detail. Upscaling stretches what is there, producing a bigger file that looks softer than the original.

Should I change the frame rate?

Halving 60fps to 30 roughly halves the data and is invisible for talking heads and screen recordings. Keep 60 for fast motion and gameplay, where the smoothness is the point.

Will the aspect ratio change?

No. The presets keep the proportions and set the height, letting the width follow, so nothing is stretched or cropped.