For making full-screen vertical video for Snapchat Snaps and Spotlight.
Snapchat is fully vertical — Snaps and Spotlight fill a 9:16 screen — so a landscape or square clip looks small and boxed-in. Cropping to vertical makes your video full-screen and native to the app. This tool reframes your footage to 9:16 in your browser, with a zoom control to pick which part of the frame fills the tall canvas. It runs locally, so your video isn't uploaded, and the export has no watermark and needs no account. Use it to turn horizontal recordings or square clips into full-screen vertical Snaps, or to prep a Spotlight submission. Drop in the video, choose 9:16, frame with zoom, and download a clean vertical result ready to post. It's the free, private way to reformat video for Snapchat without a desktop editor, and because it's browser-based it works right on the phone holding your footage.