Drop a video here, or click to select
Resize video dimensions and export an MP4 file locally.
Target video width in pixels.
Leave blank to calculate height from the width.
Source Preview
Output Size Preview
Resize video for upload limits, social formats, website previews, or smaller drafts. Leave either width or height blank to scale the other side automatically.
Video resizing changes the frame dimensions, such as turning a 4K clip into 1080p or 720p. Smaller dimensions reduce the amount of data that must be encoded and displayed, which often makes the file easier to upload and play.
Preserving aspect ratio helps avoid stretched faces, squeezed screen recordings, and distorted product demos. Set both width and height only when your target platform requires an exact frame size.
The preview shows the source video and the calculated output frame size before conversion, so you can adjust dimensions without waiting for encoding to finish.
The output is encoded as MP4 for broad compatibility with browsers, phones, presentation apps, and social platforms.
Related tools: Video Compressor · Video Converter