Add images
Choose one image or a batch in JPG, PNG, or WebP.
Exact dimensions, no guesswork
Image Resizer
Resize images by pixels or percentage while preserving aspect ratio and transparency.
Processed locallyNo accountBatch ready
JPG, PNG, and WebP
Start with your images
Files are processed on this device and removed when you close or refresh the page.
Local processing: your images are not uploaded to Pixlery.
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How to use this tool
Set dimensions
Enter pixels or a percentage, with aspect ratio locked by default.
Export
Review the output dimensions and download the resized files.
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Built for predictable results
Exact sizing
Use pixel dimensions or percentage scaling with predictable rounding.
Safe defaults
Keep proportions and optionally prevent smaller images from being enlarged.
Format-aware output
Keep the original format or deliberately choose another supported format.
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Frequently asked questions
Does resizing crop my image?
No. The resizer scales the entire image and does not crop the subject.
Can I resize several images together?
Yes. Shared settings apply to the full batch, while each image keeps its own aspect ratio.
Will enlarging improve quality?
No. Increasing pixel dimensions cannot create missing detail and may make an image look softer.
What do width and height do in pixel mode?
With aspect ratio locked, changing one dimension automatically updates the other to keep the uploaded image's proportions. To upscale, uncheck “Do not enlarge smaller images”. To stretch to an exact width and height, unlock aspect ratio.
Are transparent images supported?
Yes. PNG and WebP transparency is preserved unless you choose JPG output.