Image Resizer
Set width and/or height — output keeps aspect ratio unless you choose cover/fill
Works great with these tools
After resizing, reduce the file size further without quality loss using our free image compressor.
Convert your resized image to WebP format for up to 35% smaller file sizes using our free image converter.
Resizing images for a print design? Add a scannable QR code to your artwork with our free QR code generator.
Frequently asked questions
Common questions people ask before using this tool.
Why resize images before uploading to a website?
Oversized photos slow page load and hurt Core Web Vitals — a Google ranking factor. Resizing to the exact display dimensions (or 2× for retina screens) keeps quality sharp while reducing file size and improving page speed scores.
How do I choose the right width and height?
Match your CMS or theme's recommended image dimensions. For hero banners check your theme docs; for social sharing cards use 1200×630 px; for thumbnail grids use the smallest display size in your layout. Lock the aspect ratio to avoid distortion.
Does resizing change the file format?
Some tools let you export as JPEG, PNG, or WebP after resizing. Choose JPEG for photos (smaller size), PNG for images needing transparency, and WebP for modern browser environments where you need the best compression ratio.
What is the difference between resizing and cropping?
Resizing scales the entire image to new dimensions (possibly changing aspect ratio if not locked). Cropping cuts out a portion of the image at its original or new dimensions. For social thumbnails and profile pictures, you typically need both: crop to the right ratio, then resize to the exact pixel dimensions.
Will resizing make my image blurry?
Scaling up (enlarging) an image always risks blurring because you are adding pixels the original did not contain. Scaling down (reducing) generally preserves quality. For enlargement, use AI upscaling tools specifically designed for that purpose.
What is the maximum image size I can resize?
Browser-based resizers handle most standard photos (up to about 20–30 megapixels) without issues. Very high-resolution images from professional cameras may be slow to process or exceed browser memory limits — resize large originals offline first if needed.
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