NNTools
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Resize image

Set exact pixel dimensions or scale by percentage, with an optional aspect-ratio lock.

◉ Files stay on this device
  1. 01Import
  2. 02Adjust & preview
  3. 03Download
Drop an image here

or paste a screenshot while this area is focused

PNG, JPG, WebP, GIF · up to 30 MB each. GIF: first frame only.
Output settings

PNG is lossless; the quality slider is not used. JPEG or WebP usually makes photos smaller.

Original size is preserved until you change it. Output: up to 8,192 px per side and 32 megapixels.

Preview

Your image will appear here

Choose an image or try the sample to start.

Image processing happens in your browser. No file upload.