Resize Video for Instagram Reels

Convert videos to a Reels-friendly vertical format quickly and without server uploads. Simple and privacy-friendly.

Drop your file here or click to browse

Accepts MP4, MOV, WEBM

Settings

Fit mode

Processing runs entirely in your browser. No file is uploaded anywhere.

Show equivalent FFmpeg command

ffmpeg -i input.mp4 -vf scale=1080:1920:force_original_aspect_ratio=increase,crop=1080:1920,setsar=1 -c:v libx264 -preset fast -crf 23 -c:a aac output.mp4

Frequently asked questions

What resolution does this produce?

The output is 1080×1920 pixels (9:16), optimised for Instagram Reels.

Does Instagram Reels require a specific format?

Instagram recommends MP4 with H.264 encoding and a 9:16 aspect ratio, which is exactly what this tool produces.

What is the difference between crop and contain?

Crop fills the frame by cutting the edges. Contain keeps the whole video visible with black bars on the sides.