Resize JPG, PNG, and WebP images to exact pixel dimensions while controlling format and quality.
Private processing: your image stays on this deviceChoose a supported image and adjust the output settings.
Keep aspect ratio enabled for ordinary photos, logos, and screenshots. Changing only the width will calculate a matching height, which prevents stretched faces, squeezed text, and distorted shapes. Disable it only when exact independent dimensions are required.
Large pixel dimensions help print and high-density displays but create larger files. Website thumbnails, avatars, and email attachments normally need fewer pixels. Resizing down can reduce file size; resizing up cannot restore detail missing from the original.
JPG is efficient for photographs, PNG preserves transparency and sharp interface graphics, and WebP often produces smaller modern-web images. Check which formats the receiving website or application accepts before downloading.
Start from the final display or print requirement instead of choosing an arbitrary percentage. A website slot that displays at 800 pixels wide normally does not need a 4,000-pixel source, while a 6-inch print at 300 pixels per inch needs roughly 1,800 pixels across. If both width and height are fixed, compare the required aspect ratio with the source first; resizing alone stretches the image, whereas cropping removes edge content to reach a different shape.
The source image is decoded, resized or converted, and exported in this browser. It is not uploaded to the iToolsX server. Keep the original file because changing dimensions or using lossy quality settings can permanently remove detail from the downloaded copy.
No. Enlarging creates more pixels but cannot recreate detail that was not present in the source.
Yes when exporting PNG or WebP. JPG replaces transparency with white.
No. Decoding, resizing, previewing, and export happen inside the browser.
The tool limits each dimension to 10,000 pixels to protect browser memory and stability.