Shrinking is safe. Enlarging is not magic.
Reducing dimensions discards pixels and generally looks clean. Making an image much larger invents detail, so let the image stay sharp instead of scaling a thumbnail up.
Image tools
Resize to the size you actually need.
Set exact dimensions, work by percentage, and keep proportions intact. Multiple images can share the same output settings.
No upload. No account. Files stay on your device. The processing happens in this browser tab—an unusual arrangement in a category full of upload forms.
Add images
0 of 20 · 25.0 MB eachDrop images here, or choose files
JPG, PNG, and WebP. Add up to 20 files, 25.0 MB each.
Added locally. Nothing is uploaded.
New size
Enter a target size to preview the result.
Applies to JPG and WebP; PNG is always lossless.
Resizing re-encodes the image once. Start from the original file when you need the sharpest result, and avoid enlarging a small image beyond its native size.
Resize
Add at least one image to begin.
Your image is decoded and re-encoded by this browser. There is no upload step, no server-side queue, and no stored copy. How local processing works.
The short version
How it works.
No installer, no sign-up, and no second app to open. The work happens in the browser you already have, using the file already on your device.
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Drop images in
Add one image or a batch. The first image sets sensible starting dimensions; you can change them for the whole queue.
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Choose a target
Enter width and height, or switch to a percentage. With proportions locked, the image fits inside your target box rather than being distorted.
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Save the new files
Resize once, review the output dimensions, then download individual files or the entire batch as a ZIP.
Fine print, without the runaround
Good to know.
Every tool has a boundary. These are the ones worth knowing before you start, so the result is not a surprise.
Ratio lock fits, rather than fills
When proportions are locked, the result fits inside the width and height you set. One dimension may come in smaller so that nothing is cropped or stretched.
Use 2× for crisp screens
For a graphic that will display at 400 × 400 CSS pixels on high-density screens, 800 × 800 pixels is often a sensible target.
Does resizing change the aspect ratio?
Only if you turn the keep-proportions setting off. With it on, your image fits inside the target dimensions and you avoid squashed faces and stretched logos.
Can I resize an image to a percentage?
Yes. Switch from dimensions to percentage and use any value from 10% to 200%. This is handy for cutting a large photo down to a shareable size without converting the ratio in your head.
Will the image lose quality?
Any resize re-encodes the image. Shrinking by a moderate amount is usually invisible. Repeatedly resizing and saving the same photo will accumulate compression artifacts, so always start from the original.
What image formats can I resize?
JPG, PNG, and WebP are supported. If your browser can display another image type, it may also work, but those three are the reliable set. JPG output uses a high-quality setting and preserves no transparency.
Next door
Related tools.
Most file jobs come in pairs. These three usually follow close behind.