Image Resizer
Resize an image in your browser while preserving its aspect ratio.
Free. No signup required.
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What this tool does
Resize images by width, height or percentage. Keep proportions, choose how the image fits and prevent upscaling before downloading the local result.
How to use
Set a width or height, or choose a percentage. Keep the aspect ratio locked to avoid stretching.
Features
Resize by pixels or percentage with fit modes and an option to prevent upscaling.
When to use it
Make an image fit a publication's dimension limit before choosing its final compression quality.
Common questions
Will enlarging an image add real detail?
Enlarging an image does not recover missing detail.
Data processing
This tool processes its input locally in your browser without sending it to a server for processing. Input and results are not included in share URLs.
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Related guides
How to Compress an Image Without Losing Too Much Quality
Balance dimensions, format and quality when reducing image file size. Compare real outputs and understand why PNG and target sizes behave differently.
How to Convert PNG to WebP
Convert a PNG to WebP, keep transparency and compare quality and size. Learn what to inspect before replacing a web image with the exported file.