Image Resizer

Set the dimensions you need, then review the actual exported size. Your image stays in this browser.

Choose an image to resize

Drop or paste an image here, or choose one from your device. JPEG, PNG, WebP, GIF, and other browser-readable formats · up to 25 MB.

How to resize an image

Choose, drop, paste, or load a sample image from this device.
Choose exact pixels, a percentage of the original, or a fit-within box.
Keep the aspect ratio locked unless you want to stretch the image.
Choose an output format and quality, then select Resize image.
Review the exported dimensions and exact file size, then download the result.

What is the difference between image pixels and file size?

Pixel dimensions determine how large an image can display or print. File size is the number of bytes needed to store it. Re-encoding may change file size, so this resizer reports the actual exported bytes.

Does half width and height mean half the file size?

No. Half the width and height creates one quarter of the pixels, but compression and image content determine the exported file size.

Will resizing always make an image smaller?

No. Enlarging an image or changing its format can produce a larger file. The reported size is measured after export.

Why does PNG have no quality setting?

PNG uses lossless encoding, so a JPEG-style quality slider does not apply. A PNG re-encode can be larger than its source.

Are my images uploaded?

No. Image files are processed in your browser. The original file remains unchanged on your device.

Images up to 25 MB and 24 megapixels are accepted. Outputs are capped at 16 megapixels and 10,000 pixels per side. Processing stays in your browser. Nothing is uploaded.