Free YouTube video tool

Resize videos for YouTube

Choose vertical, square, or landscape video dimensions for YouTube, or enter a custom size in pixels. Your video stays on your device.

Choose a video
01

Choose a video

Choose a video, then select output dimensions for YouTube.

Your video stays on this device. It is not uploaded to a server.

Video preview

Your video

Output size will appear here

Choose a video to preview it and select the output dimensions.

YouTube video dimensions

Choose a video size for YouTube

These presets are starting points based on common video shapes for YouTube. You can also enter a custom size.

Preset Dimensions
4K landscape 3840 × 2160 px
Full HD landscape 1920 × 1080 px
HD landscape 1280 × 720 px
Vertical video 9:16 1080 × 1920 px
Square video 1080 × 1080 px

Platform upload requirements can vary by placement and change over time. These dimensions set the output size and do not guarantee upload limits.

How it works

Resize in three steps

  1. Choose a video file from your device.
  2. Pick a preset or enter the output width and height in pixels.
  3. Resize the video and download the result.
Video processing runs in your browser. Your source file is not sent to Plexorin or another server. Keep this tab open until processing finishes.
Questions

About the YouTube video resizer

Which video dimensions can I use for YouTube?

Preset options: 4K landscape (3840 × 2160 px), Full HD landscape (1920 × 1080 px), HD landscape (1280 × 720 px), Vertical video 9:16 (1080 × 1920 px), Square video (1080 × 1080 px). You can also enter a custom width and height in pixels.

Is my video uploaded?

No. The video is read and resized in your browser. It is not sent to Plexorin or another server.

Which output formats are available?

The tool offers MP4 or WebM when your browser supports the format. Video processing runs in real time, so a longer video takes longer to finish.

Why does my output have different dimensions than I entered?

When Keep aspect ratio is enabled, the video fits inside the dimensions you entered without stretching. Turn it off to use the exact width and height, which may stretch the video.

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