Free • Private • Browser-based
Scale an image proportionally by a percentage without calculating width and height yourself.
Resize an image by percentage in your browser. Scale to 25%, 50%, 75%, 150% or any custom amount.
Drop an image hereor click to choose a JPG, PNG or WebP
How it works
Percentage resizing is useful when you want an image to stay proportional. A 50% resize halves both the width and height.
Why use Crucialio?
This tool is designed for quick one-off image jobs with no account requirement. Processing for supported files happens on your device, which also avoids waiting for uploads and downloads before the work begins.
Frequently asked questions
Are my images uploaded?
For the tools on this page, image processing happens in your browser. Your selected image does not need to be uploaded to Crucialio.
Is there a watermark?
No. Crucialio does not add a watermark to downloaded images.
What does this scale an image proportionally by a percentage without calculating width and height yourself. tool do?
Percentage resizing is useful when you want an image to stay proportional. A 50% resize halves both the width and height.