Video Resizer
Scale any video to 1080p, 720p, 480p or a custom width — processed on your device.
Processed on your device — nothing is uploaded
About the Video Resizer
Shrink huge 4K footage to 1080p or 720p for smoother sharing, faster uploads and easier playback. ToolNest rescales the video locally with FFmpeg in your browser — no upload, no size cap.
The height adjusts automatically to preserve the aspect ratio, and audio is re-encoded to AAC for maximum compatibility on every device.
How to use the Video Resizer
- 1Drop your video into the box.
- 2Pick a target resolution — 1080p, 720p, 480p — or type a custom width.
- 3Press Resize and download your scaled video.
Frequently asked questions
Is the aspect ratio preserved?
Yes. You choose the width and the height is calculated automatically to keep the picture undistorted.
How much smaller will a 4K video be at 1080p?
Roughly 60–75% fewer pixels, so file size usually drops dramatically — especially combined with our compressor.
Does resizing upload my video?
Never. Scaling runs locally in your browser.
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