How to Crop Video for Instagram

Instagram uses specific aspect ratios for different placements: 9:16 for Reels and Stories, 1:1 or 4:5 for feed posts. FastEdit lets you crop supported videos to these dimensions in your browser. No upload, no watermark, no account. This guide shows you how to get your video sized correctly for each Instagram format.

Walkthrough

  1. 01

    Open FastEdit

    Go to fastedit.net. The editor runs entirely in your browser with no installation or sign-up.

  2. 02

    Drop your video file

    Drag and drop your video onto the editor. Supported formats include MP4, MOV, and WebM. Your file stays on your device.

  3. 03

    Select the Instagram preset

    Open the presets menu and choose the Instagram option that matches your target placement: Reels (9:16, 1080x1920) or Feed Video (4:5, 1080x1350). For a square feed video, lock the crop to 1:1 and set 1080x1080 manually.

  4. 04

    Position the crop area

    Adjust the crop frame to center your subject within the new aspect ratio. Keep important elements away from the edges, especially the top and bottom where Instagram overlays UI elements.

  5. 05

    Export as MP4

    Select MP4 with H.264 codec for maximum Instagram compatibility. Click Export to download your cropped video, then upload it to Instagram.

Small things worth checking

FAQ

Bring the file.
Leave with the fix.

Open the editor, drop in the image, PDF, GIF, or video that is holding things up, and export a cleaner version. No signup, no upload, no watermark.

Open the editor
Free to use Runs in your browser No account needed