Resize images to exact dimensions right in your browser, with optional aspect-ratio lock — free and private.
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What is image resizing?
Resizing means changing the pixel width and height of an image — for example shrinking a large phone photo to an upload-friendly size, or fitting a social/avatar spec. This tool resizes locally in your browser: no upload, fast and private.
How to use it
Drop in or select an image; the tool shows its original dimensions.
Enter a target width or height (with the ratio locked, the other side is filled in automatically).
Click Download to save the resized image.
Common uses and tips
Websites/e-commerce: shrink oversized originals to their actual display size to load much faster.
Social/avatars: resize to the platform’s recommended size first to avoid auto-cropping or blurring.
To also cut the file size, resize first, then run the result through the image compressor.
Frequently Asked Questions
Are my images uploaded?
No. Resizing runs entirely in your browser using the Canvas API. Your images are never sent to a server or stored.
Is the aspect ratio kept?
By default the aspect ratio is locked: change one side and the other is calculated proportionally to avoid stretching. You can unlock it to set width and height freely.
Can I enlarge an image?
Yes, but enlarging cannot invent detail — stretched pixels may look soft or jagged. For crisp scaling-up, a vector (SVG) or an AI upscaler is a better fit.
Does downscaling reduce quality?
Downscaling is usually clean with little visible loss. The output keeps the original format; if the source is JPG it is still lossy, so only repeated re-saving degrades it over time.
