Does resizing by percentage preserve the aspect ratio?

Yes. Both width and height are multiplied by the same percentage, so the aspect ratio of the original image is maintained perfectly.

Can I upscale an image above 100%?

Yes. You can enter values up to 200% to enlarge the image. Note that upscaling uses bicubic-like interpolation provided by the browser's canvas, so very large upscales may appear soft.

What is the output file format?

The resized image is downloaded as a PNG file, which supports lossless compression and transparency.

Image Resize by Percentage

Resize an image by entering a percentage (10–200%). New dimensions are shown in real time. Download the resized result.

The Image Resize by Percentage tool scales an uploaded image proportionally by a user-defined percentage. Enter any value between 10% and 200% and see the calculated output dimensions instantly. Resizing is done via the HTML Canvas API, maintaining the aspect ratio exactly. The result can be downloaded as a PNG file. Everything runs in your browser — no server upload needed.

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FAQ

Does resizing by percentage preserve the aspect ratio?: Yes. Both width and height are multiplied by the same percentage, so the aspect ratio of the original image is maintained perfectly.
Can I upscale an image above 100%?: Yes. You can enter values up to 200% to enlarge the image. Note that upscaling uses bicubic-like interpolation provided by the browser's canvas, so very large upscales may appear soft.
What is the output file format?: The resized image is downloaded as a PNG file, which supports lossless compression and transparency.