Slimvid

Resize Video Online — Change Resolution

Downscale 4K to 1080p, 1080p to 720p, or set a custom width while keeping the aspect ratio.

Drop videos here, or click to browse

Up to 1GB each · MP4, MOV, WebM, MKV, AVI, WMV and 30+ more

Choose files

Processed locally in your browser. Nothing is uploaded.

Settings

Add a video and the settings for this tool appear here.

How it works

  1. 1Drop your video. We detect its current resolution.
  2. 2Pick a target: 1080p, 720p, 480p, 360p or a custom width. Height follows automatically.
  3. 3Resize and download the smaller MP4.

Processed locally in your browser. Nothing is uploaded.

Three steps

How to resize a video

No sign-up, no upload queue, no watermark. Everything happens on your device.

  1. 1

    Drop your file

    Drop your video. We detect its current resolution.

  2. 2

    Choose settings

    Pick a target: 1080p, 720p, 480p, 360p or a custom width. Height follows automatically.

  3. 3

    Download

    Resize and download the smaller MP4.

Keep going

Related tools

FAQ

Resize Video FAQ

Desktop app

Files over 1GB? Take it to the desktop.

The browser version is perfect for everyday clips. When you need to crunch big footage or dozens of files, the desktop app does it faster on your own hardware.

Get early accessCompare web vs desktop
  • No file size limit — 4K, hour-long recordings, anything
  • Batch queues: drop a folder, apply one preset
  • Hardware-accelerated encoding (H.264 / H.265)
  • Works fully offline, same privacy guarantee