191 · Video Tools

Video Resizer

Get the exact size each platform wants, without editing software.

Video Resizer

or drop it here Files stay on your device

    How to use the video resizer

    1. Choose a video.
    2. Pick a size and how it should fit.
    3. Select Resize video.

    Fit, bars or crop?

    • Fit inside keeps the whole picture and its shape; the result may be smaller than the size you chose on one side.
    • Add bars keeps the whole picture and fills the rest with black or white.
    • Crop to fill fills the frame completely and trims the edges.

    Examples

    Landscape 1080p → 1080 × 1920, crop

    Vertical video for Reels/TikTok

    4K → 1280 × 720, fit inside

    Smaller 720p MP4

    Questions

    Why does the first conversion take longer?

    The first time, your browser downloads the video engine (FFmpeg compiled to WebAssembly, about 31 MB) from this site. After that it’s cached, and the work itself runs on your device.

    Are my files uploaded?

    No. Everything happens in your browser on your own device, so your files are never sent to a server.