Your images are resized in your browser and are never uploaded or stored.
How to resize an image
- Click the box above, or drag and drop your images onto it. You can add many at once.
- Choose how to resize. Enter a width or height in pixels, or choose a percentage.
- Pick the format and quality you want to save in.
- Click Resize images, then download each file or all of them as a ZIP.
Resizing options
- By pixels with proportions kept: type a width or a height, and the other one is worked out so the picture is not stretched. If you type both, the image is fitted inside that box. This works well for a whole batch of different-shaped pictures.
- By pixels without keeping proportions: untick the proportions box and enter both numbers to force an exact size, which stretches or squashes the image.
- By percentage: 50 makes every image half its width and height, and 200 doubles them.
- Save as: keep the original format, or choose JPG, PNG or WebP. Formats that cannot be saved directly, such as GIF, BMP and SVG, are saved as PNG when you pick the same format.
Common reasons to resize
- Make photos small enough to upload to a website or form that has a size limit.
- Shrink pictures so they load faster and are easier to email.
- Prepare images for a blog, a shop listing or a social media profile.
- Reduce the size of phone photos before sharing them.
Is it safe and private?
Yes. Your images are resized entirely in your web browser on your own device, so they are never uploaded to a server or stored anywhere. The page loads one small open-source library for the ZIP download, so it needs an internet connection the first time.
Good to know
- Making an image smaller keeps it sharp. Making it bigger cannot add detail that was never there, so it looks softer. For that reason, enlarging is switched off unless you allow it, and images already smaller than your target are left as they are.
- Resizing changes the number of pixels. To reduce the file size without changing the dimensions, lower the quality setting instead, or use our Image to JPG tool.
- The quality setting applies to JPG and WebP only. PNG is lossless.
- JPG cannot be transparent, so transparent areas turn white when you save as JPG.
- Animated GIFs are resized using only their first frame, and HEIC photos from some iPhones are not supported by most browsers.
- You can resize up to 50 images and 100 MB in total at a time, and results are limited to 8,000 pixels on the long side. Your original files are never changed.
Need a different format? Try our Image to PNG and WebP to PNG tools, or put resized images into a document with JPG to PDF.