Resize an Image Without Uploading
Enter a target width and optionally a height to resize a JPG, PNG, or WebP image in your browser. The current Image Resizer always downloads a WebP file.
- Input
- Process
- Result
Add an image
The input stays in this browser tab and is not uploaded.
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Support LalabbWhat this tool does
Enter a target width and optionally a height to resize a JPG, PNG, or WebP image in your browser. The current Image Resizer always downloads a WebP file.
Supported formats and output
- JPG/JPEG, PNG, and WebP input
- Pixel width and height controls
- WebP-only output in the current version
Privacy boundary
The selected image is processed in your browser and is not sent to a Lalabb conversion server for this tool.
How dimensions and aspect ratio work
Set a width and leave height at 0 to calculate height from the source aspect ratio. This is the safest way to avoid stretching.
If you enter both width and height, the image is drawn into those exact dimensions. A target ratio that differs from the source ratio will stretch or squash the image.
The browser resamples the image and creates a separate WebP download. It does not preserve the original JPG or PNG format.
Limitations
- Output is WebP only in the current approved implementation; original-format preservation is not available.
- Enlarging an image creates more pixels but cannot recover missing detail and can make edges appear softer.
- The tool does not crop, add print bleed, set a physical print size, or guarantee print quality.
Frequently asked questions
How do I resize without stretching?
Enter the target width and leave height at 0. The tool calculates a proportional height from the source image.
What happens if I enter both width and height?
Those exact dimensions are used. If their ratio differs from the source, the image will be distorted rather than cropped.
Does JPG stay JPG and PNG stay PNG?
No. The current Image Resizer exports WebP only, regardless of whether the input is JPG, PNG, or WebP.
Can I make a small image sharp by enlarging it?
No. Upscaling adds pixels through resampling but does not recreate detail absent from the source.
Does Lalabb upload the image?
The selected image is resized in your browser and is not sent to a Lalabb conversion server for this tool.
Can I use the result for print?
Possibly, but check the resulting pixel dimensions against the intended physical size and target DPI. Resizing alone does not guarantee print quality.
Will transparency be preserved?
WebP can contain transparency, and the browser-based canvas path may preserve it. Verify the downloaded result because decoding and encoding support can vary.
Does the resizer crop the image?
No cropping control is provided. It either keeps the ratio when height is 0 or fits the image to the exact width and height you enter.