Image resizer
Make your image the size you need, with an optional aspect-ratio lock.
JPG, PNG or static WebP · up to 20 MiB each · 8,192 px per side · 24 megapixels
PNG ignores the quality setting. JPG uses the selected background for transparency; PNG and WebP can retain it.
Original
Preview
Your image preview will appear here.
Choose an image to begin.
Files are read on your device, never uploaded. Outputs are newly encoded; metadata and animation are not retained.
A practical example
Starting point
1600 × 900 px · scale 50%
Result
800 × 450 px
When this helps
Useful for website assets, attachments and images that must meet a pixel limit. Keep the aspect ratio locked to avoid stretching, or turn it off for an exact rectangular size.
How it works and its limits
Pixel mode uses the entered width and height. With the ratio locked, changing one updates the other from the original image. Percentage mode scales both sides by 1–400%, rounding to whole pixels.
Enlarging creates more pixels but cannot recover missing detail. Output stays within 8,192 pixels per side and 24 megapixels. Invalid settings clear any prepared download.
Choose JPG, PNG or WebP. The original stays intact, but the output is newly encoded without source metadata. Use Social Media Image Resizer for a fixed canvas with cropping or padding.
Useful details
Does the lock stop distortion?
It keeps the original aspect ratio, subject to whole-pixel rounding.
Can I enlarge a small photo?
Yes, within the limits, but enlargement does not invent sharp detail.
Does this crop the photo?
No. It scales the full image. Use Image Cropper for a selection.