For TikTok creators converting landscape or square clips into full-screen vertical video that fits the feed.
TikTok is built for vertical 9:16 video, and clips that aren't cropped to it show up small and letterboxed in the feed. This tool crops your video to 9:16 in your browser, with a zoom control to pick which part of the original frame becomes the vertical shot — handy when your subject isn't centered. Processing is fully local, so your footage isn't uploaded to any server, and there's no watermark on the export, which matters because TikTok's algorithm and viewers both penalize obvious third-party watermarks. Use it to turn horizontal recordings, screen captures, or square clips into native-feeling vertical TikToks. Just drop the clip in, choose 9:16, frame it with zoom, and download a clean, full-screen vertical video ready to post — free, private, and without the sign-up wall most online video tools put in front of an export.