Free image tool

Resize an image by percentage

Scale both dimensions together to make an image smaller or larger without changing its proportions.

Drop an image here

or paste an image from your clipboard

Choose image

JPG, PNG, or WebP · up to 50 MB

Images are processed in your browser and are not uploaded.

Proportional image scaling

Percentage resizing changes width and height by the same factor. A 50% resize turns a 2000 × 1200 image into 1000 × 600. The pixel area becomes one quarter of the original because both dimensions are halved.

Making an image larger

A percentage above 100 enlarges the image. The canvas becomes larger, but the browser must interpolate existing pixels, so the result may look softer than the original.

How to use this tool

Choose or drop a supported image into the tool.
Set dimensions, optionally crop and position the image, then choose format and quality.
Process, preview the result, and download the new file.

Frequently asked questions

Are my images uploaded anywhere?

No. Resize.Tools processes supported images locally in your browser. The image does not need to be sent to a Resize.Tools server.

Does resizing reduce image quality?

Reducing dimensions normally preserves a clean appearance, while enlarging an image can reveal softness or pixelation. JPG and WebP quality settings can also affect detail and file size.

How do I resize without stretching the image?

Keep Lock aspect ratio selected for a normal resize. For an exact frame with different proportions, choose Fit inside to keep the entire image visible or Crop to fill to cover the frame.

How does crop positioning work?

Crop to fill keeps the output proportions and removes excess image area. Use a quick position or the horizontal and vertical sliders to decide which part stays visible.

Which image formats are supported?

The first version supports JPG, PNG, and WebP input and output in modern browsers.

Is Resize.Tools free?

Yes. The image resizer is free to use, requires no account, and does not add a watermark.