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Image Resize

The helper clamps dimensions to safe positive values to avoid invalid canvas output.

Resize images by width, height, or percentage while preserving aspect ratio when needed.

Image workspace

Use Resize

Add your input, choose the available settings, and review the result before using it.

Image fileChoose an image, then set target dimensions.No file selectedBrowse

Width

Height

Output format

Original

No image

Output

1200 x 800

Output size

0 B

Processed image preview appears here.

Choose an image to generate output.

Simple workflow

01
Add your input
Enter values, paste content, or choose files in the workspace.
02
Choose your settings
Adjust the available options to match the result you need.
03
Review the result
Check the output before you copy or download it.

Before you use the result

Processing happens in your browser. Toolsera does not upload the content you add to this workspace.

Can aspect ratio be locked?

Yes. When locked, changing width or height recalculates the other dimension automatically.

What happens if dimensions are too small?

Continue the workflow with tools that pair naturally with this one.