✳ FREE, NO UPLOAD
Crop video for Facebook Reels
Scales and center-crops any video to Facebook Reels’s 9:16 frame (1080×1920), entirely in your browser via a WebAssembly build of ffmpeg.
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 size does Facebook Reels need?
Facebook Reels is built around 9:16. This tool outputs 1080×1920.
Will this stretch or distort my video?
No - the source is scaled to fully cover the target frame, then the excess is cropped from the center, so proportions stay correct.
What format do I get back?
An MP4 file, ready to upload directly.
Koldflux crops, captions and schedules every clip for Facebook Reels automatically - no manual export step.
Automate this in Koldflux