Trim videos to the right length with Captions.

Crop posts

to any size
Crop your video to suit any social media platform.

Change the aspect ratio

Resize videos for any social channel.

Trim content

Cut out unwanted frames for engaging, cohesive content.

Grow your audience

Find viewers on Youtube, Reels, Tiktok and more.

How to crop a video
in three steps


Upload a video to the Captions app.


Scale and trim clips with a couple clicks.


Export your video in the format you need.

Frequently asked questions


What’s the best video cropping software?

Captions is a user-friendly cropping tool for content creators who want to customize the length and look of their videos. With Captions, you can crop, edit, and caption your post — all in one place.

What video file types can I crop?

Captions supports almost any file type, including MP4, MOV, AVI, WAV, FLV, GIF, MKV, and QuickTime.

Can I crop a video on my iPhone?

Learning how to crop a video on your iPhone is easy with Photos. In the app, just find your video, tap “Edit,” and click the crop icon at the bottom of the screen to change the size.

Will cropping the video reduce the file size or quality?

  • Cropping the video can reduce both file size and quality. The impact depends on the type of cropping and the video format. For instance, changing the frame size (spatial cropping) usually reduces the file size because you’re discarding data by removing parts of the image.

Trimming the video shortens it, which always reduces the file size but doesn’t affect the streaming quality. No matter what type of cropping you’re doing, choose an editing platform that allows “lossless” cropping to keep your quality high.