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How Can I Change the Aspect Ratio of My Video?

You can change the aspect ratio of your video at any point in the Editor. ByThen supports the most common formats for every platform.

How to change it

Click the Aspect Ratio button located under the preview box in the Editor Tool. Select the format you want from the dropdown.


​Available aspect ratios

  • 16:9 Horizontal (YouTube, LinkedIn, X)

  • 9:16 Vertical (YouTube Shorts, TikTok, Instagram Reels)

  • 1:1 Square (Instagram Feed, LinkedIn)

  • 4:5 Portrait (Instagram Feed)

Note: Changing the aspect ratio after generating your video may affect how clips are framed. Review your timeline after switching.

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