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Image Resizer

Set a new width and height in pixels, or scale by percentage. Lock the aspect ratio to avoid stretching.

Free · No sign-up · Private — runs in your browser

How to use the Image Resizer

  1. Upload your image.
  2. Enter new width or height (aspect ratio stays locked).
  3. Click Resize and download.

Why use this image resizer?

  • Aspect-ratio lock
  • Exact pixel control
  • Private browser processing

Frequently asked questions

How do I resize an image without losing quality?

Scaling down keeps images sharp. Enlarging beyond the original size can look soft because no new detail exists.

What size is best for social media?

Common sizes: 1080×1080 for square posts, 1200×630 for link previews and 1920×1080 for video thumbnails.

Does it keep the file format?

Yes. PNG stays PNG and JPG stays JPG unless you change it in the Image Converter.