Resize JPG Online

Our free in-browser tool lets you resize JPG or JPEG images in a few simple steps:

1. Upload or drag and drop your JPG or JPEG file into the tool above.

2. Choose your resize method:

• Exact Dimensions: Enter your target width and height in pixels.

• Fit Within: Constrain your image inside a maximum bounding box while preserving proportions.

• Scale Percentage: Enlarge or reduce both dimensions proportionally using a percentage slider.

3. Keep Aspect Ratio Lock enabled if you want to avoid stretching or distortion.

4. Preview the resized image, adjust the JPG quality slider if needed, and download your file.

All image processing runs locally in your web browser. You can also use our complete image resizer to scale PNG and WebP files.

When resizing JPG images, image quality depends on whether you are reducing or enlarging pixel dimensions, as well as the JPEG encoding quality:

• Downsizing: Reducing the pixel dimensions of a large JPG usually preserves good visual quality when the output is not made excessively small.

• Upscaling: Increasing the pixel dimensions cannot recreate detail that was not present in the original image and may make the image look softer.

• Lossy Encoding: JPG is a lossy format, so saving an image again as JPEG can introduce additional compression depending on the quality setting.

• Quality Setting: The quality slider controls JPEG encoding quality when the output is JPG. While 85% is a useful starting point, there is no single quality value that is best for every image.

Resizing changes the image's pixel dimensions, such as changing 4000 × 3000 pixels to 1920 × 1440 pixels. Compression reduces the file size in KB or MB, while the pixel dimensions can remain unchanged.

• Use resizing when the image dimensions are larger than needed for your display, presentation, or layout.

• Use compression when the pixel dimensions are appropriate but the file is too large for a website, upload form, or other limit. In those cases, use our dedicated compress JPG or image compressor tools.

• Sometimes both are useful together.

If you are preparing JPG photos for physical print, check your target dimensions with our image print size calculator or convert JPG to 300 DPI.

These are common reference dimensions for standard web, marketing, and display graphics. They are helpful reference sizes, not universal requirements: