Question 1

Are images uploaded to resize them?

Accepted Answer

No. Resize runs in the browser with the Canvas API.

Question 2

What is the difference between pixel and percent mode?

Accepted Answer

Pixel mode sets exact width and height. Percent mode scales from the original, so 50 percent is half.

Question 3

What does lock aspect ratio do?

Accepted Answer

Changing one side updates the other so the photo does not stretch. Unlock only if you mean to distort.

Question 4

What formats are supported?

Accepted Answer

JPG, PNG, and WebP. The output type matches the input. The quality slider affects JPG and WebP, not PNG.

Question 5

Can I resize a batch?

Accepted Answer

Yes. The same settings apply to every file. Download one or all.

Question 6

Will enlarge look sharp?

Accepted Answer

Often no. New pixels are interpolated. For invented detail, that is the AI upscaler, and that file is uploaded.

Question 7

Should I compress instead?

Accepted Answer

Yes, when the pixels are already right and the file is heavy.

Question 8

Should I crop instead?

Accepted Answer

Yes, when you need a frame, not a scale.

Question 9

Are originals overwritten?

Accepted Answer

No. You download new files.

Question 10

Does PNG stay lossless?

Accepted Answer

Yes. The quality slider does not apply to PNG.

Question 11

Can I resize HEIC here?

Accepted Answer

No. Convert to JPG first, then resize.

Resize Image - Exact Pixels or a Percent