What size should I use for Instagram Reels?

A vertical 9:16 output is the common choice for Reels and Stories.

Should I crop or resize first?

Crop first when the subject needs reframing, then resize to the final Instagram shape.

Is the video uploaded?

No. The resize workflow runs locally in your browser for supported files.

Instagram sizing

Resize Video for Instagram

Prepare a clip for Instagram by choosing vertical, square, landscape, or original-ratio output before exporting.

Resize for Instagram Crop video

Match the frame to the Instagram placement

Resizing changes pixel dimensions, while cropping changes what remains visible. Decide the final placement first so the subject stays framed correctly.

Choose the aspect ratio before export

Vertical 9:16 is the common shape for Reels and Stories, while 1:1 creates a square frame and 16:9 suits landscape video. Platform presentation can evolve, so preview the result in the destination composer and keep important text away from interface overlays.

Use 9:16 for a full-height vertical presentation.
Use 1:1 when a square feed asset is required.
Keep the original ratio when no placement-specific crop is needed.

Crop for composition, resize for dimensions

Stretching a landscape source directly into a vertical frame can distort people and objects. Crop or reframe the source when the aspect ratios differ, then resize the selected composition to the output dimensions. Check faces, captions, and logos before downloading.

Crop first when the subject needs a new composition.
Avoid placing captions at the extreme top or bottom edge.
Review the MP4 on a phone-sized viewport before publishing.

How it works

Three steps to finish the browser workflow.

1
Choose a source video
Open Resize Video and select the clip you want to prepare for Instagram.
2
Pick an aspect ratio
Choose vertical, square, landscape, or keep the original ratio based on where you plan to post.
3
Export MP4
Resize locally in the browser and download the Instagram-ready MP4.