Image Tools
Image Resizer
Use this Image Resizer to upload one image, set the maximum width and height you want, and export a resized version directly in your browser.
More Image Tools tools
7Image Resizer uploader
Upload one image, set maximum width and height, and export a resized version directly in your browser.
Processed image
Prepare output
Upload one image, adjust the tool settings, and export a processed image locally in your browser.
Source size
No image loaded
Output size
Not generated yet
Format
Not generated yet
Size change
Not generated yet
Explore more visual utilities in Image Tools or browse the main Tools Directory.
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Quick overview
How this calculator works
This tool loads your image in the browser, redraws it on a canvas within the size limits you set, and exports the smaller result without sending the file to a server.
It is useful when you need lighter uploads, smaller website assets, or images that fit stricter layout dimensions.
What the result means
A successful result means the image was resized to fit within the width and height limits you chose. The result box shows the output dimensions and approximate file size.
That makes it easier to see whether the resized file is more practical for sharing or publishing.
Important limitations
This is a browser-based utility, not a professional image editor. Very large source files can still be limited by browser memory, and image quality may vary depending on the source format.
Resizing alone also does not guarantee better compression if the source file was already optimized.
When to use this calculator
Use Image Resizer when a file is visually too large for your layout or heavier than it needs to be for sharing and upload workflows.
Related tools include Image Compressor, Crop Image, and the Image Tools hub.
FAQs
Are images uploaded to a server while resizing?
No. Images are processed locally in your browser and are never uploaded by this tool.
Does resizing always make a file much smaller?
Often it helps, but exact size savings depend on the original format, dimensions, and visual detail.
Will the output keep the same aspect ratio?
Yes. The image is scaled to fit within the width and height limits while preserving its aspect ratio.
Can this tool enlarge tiny images cleanly?
It can enlarge them, but enlarging does not create new detail and may make softness more obvious.
Is this a professional publishing workflow?
No. It is a practical browser-based utility for everyday resizing tasks.