✳ FREE, NO UPLOAD
Convert video to 9:16
Full-screen vertical - the native shape of TikTok, Reels, Shorts and Stories. Output is 1080×1920, cropped from the center so nothing is distorted.
Batch is free and unlimited - files are processed one after another on your device, with no queue or daily cap. Maximum 100 MB per file; the first run loads a ~30 MB engine once per visit.
Frequently asked
What is a 9:16 aspect ratio?
Full-screen vertical - the native shape of TikTok, Reels, Shorts and Stories. At standard quality that is 1080×1920 pixels.
Will my footage be stretched?
No - the source is scaled to cover the target frame and the excess is cropped from the center, so proportions are preserved.
Koldflux reframes one source recording into every ratio you publish in, automatically.
Automate this in Koldflux