toolvio.

Image resizer

Resize an image to exact pixels or a percentage, keeping proportions.

Runs locally in your browser. Nothing is uploaded.

How to use

  1. Choose an image.
  2. Set width or height; the other side follows when the lock is on.
  3. Download the result.

Questions

Does enlarging lose quality?

Enlarging always interpolates pixels, so the image gets softer. Shrinking is lossless in that sense.