Cover vs Fit: Which Resize Mode Should You Use?

When you snap an image to a fixed shape, like a 1280 by 720 thumbnail or a 1500 by 500 header, the tool has to decide what happens when your photo is not already that exact shape. That is the choice between cover and fit.

Getting this right is the difference between a clean edge-to-edge image and one with awkward bars down the sides.

Cover fills the frame

Cover scales your image up until it fills the whole target shape, then crops off whatever hangs over the edges. The output is exactly the size you asked for, with no empty space.

Use cover when:

• You want the image edge to edge, like a YouTube thumbnail or an X header.
• Losing a bit off the top, bottom, or sides is fine.
• The important part of the photo is near the center, so the crop does not cut it off.

The one thing to watch is that cover can trim something at the edge. If your subject is right against a border, reframe it first with the crop tool so the important part sits toward the middle.

Fit keeps the whole image

Fit scales your image down until the entire thing is visible inside the target shape, then adds padding to fill the leftover space. Nothing gets cropped.

Use fit when:

• The whole image has to stay visible, like a product shot or a diagram.
• The photo shape is very different from the target and cropping would lose too much.
• You are fine with a border around the image.

A simple rule

If the shape is close to your image and you want it filled, use cover. If the shape is far from your image or you cannot lose any of it, use fit. You can switch between them in the resizer and watch the preview update, so try both and keep the one that looks right.

Both modes run entirely in your browser. Nothing uploads, and there is no watermark on the result.