Free Online Video Resize Tool

Resize any video to exact dimensions — no upload, no watermark, no sign up

Resize Your Video Now

Resize Your Video

Choose a video, enter the width and height you want, then download the resized clip

Choose a video…No video selected

Resolution

If aspect ratio differs

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100% Privacy
Friendly

🆓

Completely
Free To Use

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Zero
Watermarks

How It Works

100% Private, your video never leaves your browser. Resizing happens locally on your device using WebAssembly. Nothing is uploaded to our servers.

This tool runs FFmpeg, the industry‑standard video toolkit, compiled to WebAssembly so it runs entirely inside your browser. Enter any width and height, we scale the video to cover the target and centre‑crop to fit, so it never looks stretched, whether you're changing the aspect ratio or just the resolution.

The first time you resize, the tool downloads the video engine (~30MB) to your browser and caches it, so later resizes start instantly. Because the work happens on your own device, very large files may take longer on lower‑powered machines.

Want to resize, trim, watermark or generate videos automatically at scale? The Bannerbear API automates it for you. Plug it into your app or no‑code workflow and generate thousands of videos on autopilot.