Change a Video's Resolution
Downscale a video to a standard resolution — 1080p, 720p, 480p or 360p — with the aspect ratio preserved. Runs in your browser.
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This resize video tool downscales a video to a standard resolution — 1080p, 720p, 480p or 360p — with the aspect ratio preserved automatically. The re-encode runs in your browser.
Downscaling is the clean fix for files that are bigger than their destination needs: 4K footage for a website, 1080p captures for a chat message.
Why Use This Resize Video Tool?
- Standard presets — 1080p, 720p, 480p, 360p
- Aspect ratio preserved — width adjusts automatically
- Smaller files and faster platform processing
- Private — resized in your browser, no upload
- Free, no signup
How to Resize a Video — 3 Steps
- Drop your video into the box above and wait for the file details to appear.
- Pick the target resolution — 1080p, 720p, 480p or 360p.
- Press the blue Resize Video button and download the result.
Why Downscaling Is Almost Always a Win
Most videos are larger than their destination. A 4K screen recording destined for a chat message, a 1080p camera clip that will be watched on a phone, a 1440p capture for a help article — every one of them pays a size and upload-tax for pixels the viewer will never see at full value. Downscaling to the display reality shrinks the file substantially, makes uploads faster and platform processing smoother, and on phones and laptops is visually indistinguishable from the original.
The tool scales to your chosen height (720p means 720 pixels tall) and derives the width from the video's own aspect ratio, so nothing is stretched. The scaling is done by the browser's video pipeline with proper filtering — not by naive pixel dropping — so text stays readable and edges stay clean at the new size. If the source is already smaller than the target, the honest result is that resizing up adds no detail; the tool still performs it if you ask, but the sensible move is to keep the original.
Expect the savings to compound with bitrate: a 4K file at 40 Mbps becomes a 720p file at 2–3 Mbps — often a 90% size reduction — because both the pixel count and the required data rate fall together. For the biggest wins, resize and compress in one step with the Compress Video tool, which does both at once.
The re-encode runs on your device's encoders with real progress. Nothing is uploaded.
Frequently Asked Questions
The height of the video in pixels — 720p is 1280×720 (or taller/wider for other aspect ratios), 1080p is 1920×1080. Width follows your video's aspect ratio.
Match the destination: 1080p for desktop viewing and platforms, 720p for phones and chat, 480p/360p for size-sensitive sharing.
Downscaling discards pixels by design — at the new size the result looks clean. Upscaling adds no detail.
This tool uses height-based presets. For a specific pixel box, crop first or use an editor.
A lot — pixel count and bitrate needs fall together. 1080p to 720p typically cuts the size by more than half.
No — the resize runs in your browser.
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