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Resize a video for Reels, TikTok, or Shorts in your browser Use the Frame tab to crop a landscape video to 9:16, square, or 4:5, and pick a canvas size preset such as Reel or 4K.
Where to find it Web editor → Frame tab
How to do it 1 Open the Frame tab on the right.
2 Under Frame , choose a shape: Reel 9:16 , Square 1:1 , Portrait 4:5 , Landscape 16:9 , Cinema 2.39:1 , or Custom .
3 Press Frame under the preview, then drag the frame to choose which part of the video shows. Drag an edge or corner to zoom.
4 Under Canvas , press a preset such as Reel or 4K Reel , or type a Width and Height .
Good to know The frame applies to the whole timeline. Clips you place on the canvas keep their own box. With nothing selected, dragging the canvas's edges in the Canvas view resizes it while everything on it keeps its size and place.
Who can use it Free
Where it works Web This guide answers How do I make a video vertical online? How do I crop a video to 9:16 for TikTok? How do I change the aspect ratio of a video in the browser? How do I make a square video for Instagram? How do I change the video size to 1080 × 1920? Related guides Change a video to vertical 9:16 for TikTok, Reels and Shorts
Set the canvas to Reel, Square, Portrait or another size. A screen recording is cropped to match and can follow your mouse.
Crop a video to vertical or square on iPhone
Change a recording's shape to Reel 9:16, Square 1:1, or Portrait 4:5 and choose which part shows, for Reels, TikTok, or Shorts.
Start a new project in the web editor
Start an empty project on the canvas size and frame rate you pick, such as vertical 1080 × 1920 for Reels, or begin from a pasted script.
Make the frame follow your cursor in a browser recording
Find the mouse pointer in a video that has no cursor data, so a vertical crop follows it and zooms in where it stops. It runs on your computer.
Still stuck? Support covers install, permissions and how to send feedback from the app.
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