Adjust your video’s aspect ratio with just one click.

A laptop with a video on the screen on captions app

Instantly resize

any video
Easily resize your video for different social platforms.
Video frame of a woman standing in front of a statue wearing a blue suit.

Format for any social media

Select the aspect ratio (1:1, 4:5, 9:16, 16:9) to fit any
social platform.

One video, greater reach

Make one video go further by posting across
multiple channels.

Video frame of a man and a woman sitting at a table.
Video frame of a woman looking at her cell phone

Diversify your audience

Build an audience across TikTok, Reels, Shorts, and so much more.

How to resize a video
in 3 steps

A purple folder with a picture of a man.

your video

Upload your video to Captions.

Aspect ratio options inside Captions app

Select your aspect ratio

Choose the right aspect ratio for your video.

Export options on captions app


Download your video.

Frequently asked questions


How can I resize video without losing quality or stretching it?

Resizing a video automatically adjusts the dimensions to fit the new aspect ratio, which can cause stretching or impact quality. Maintain the quality and limit stretching by cropping the video and optimizing the resolution when it’s time to export.

What’s the best video size for social media?

The right size for a video depends on the platform and content length. Short-form videos on TikTok, Facebook, YouTube, and Instagram use a 9:16 aspect ratio. If you make long-form videos for Facebook or YouTube, your viewers may appreciate the 16:9 aspect ratio, which better fits the larger screens often used for longer viewing experiences.

Do I need video editing experience to use Captions?

You don’t need video editing experience to use Captions’ creative studio. The app’s user-friendly interface and powerful automation tools make video editing easy for beginner creators.