How to resize an image
- Drop a photo on the box above, or tap it to pick one. You can add several images to resize them all in one go.
- Choose Pixels and type the new width or height, or choose Percent to scale by a percentage.
- Leave Keep aspect ratio on to avoid distortion. Turn it off to set an exact width and height, then choose to crop to fill, fit with padding, or stretch.
- Pick a format and click Download. With several images, use Download all (ZIP).
Resizing without losing quality
Making an image smaller is always safe: the browser averages neighbouring pixels with high-quality smoothing, so the result stays sharp. Making an image larger cannot add detail that was not captured. Upscaling by up to about 150% is usually acceptable; beyond that, edges get soft.
When the target shape differs from your photo, Crop to fill scales the image until it covers the whole frame and trims the edges equally, which is what social networks do. Fit inside keeps the whole picture and adds bars in your chosen background color. For the most control over what gets trimmed, crop first with the image cropper.
Your photos stay on your device
Resizing happens in your browser with the Canvas API. Nothing is uploaded, so you can safely resize ID scans, family photos and work documents. Saving creates a fresh file, which also strips EXIF metadata such as GPS location.
How do I resize an image without changing its proportions?
Keep "Keep aspect ratio" ticked and enter only the width or the height. The other value is calculated for you.
What is the difference between resizing and compressing?
Resizing changes the number of pixels. Compressing changes how efficiently those pixels are stored. Resizing a large photo to the size you need is usually the biggest single way to reduce its file size.
Can I resize many images at once?
Yes. Drop several files and they are all resized with the same settings. Each keeps its own proportions when the aspect ratio lock is on.
What is the largest size I can make?
Up to 20,000 pixels on a side, depending on your device's memory. Phones may fail with very large canvases.