Resize Image

Scale to exact pixel dimensions or a percentage. Aspect-ratio lock keeps things proportional.

Click to upload or drag & drop JPG, PNG, WebP, GIF — up to 50 MB
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Resize mode
Dimensions
Aspect ratio locked
Common presets
Output format
How to resize
1 Upload your image by clicking or dragging.
2 Choose Pixels and enter W × H, or use Percentage to scale.
3 Pick a preset to fill common dimensions instantly.
4 Select output format, then hit Resize & Download.
Other Tools
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About This Resize Tool

Resizing images in-browser means zero waiting time for uploads or server processing. The tool draws your image onto an HTML <canvas> element at the new dimensions and exports it via the Canvas toBlob API.

When you lock the aspect ratio, the tool automatically calculates the second dimension from the first to maintain proportions. The percentage mode lets you quickly scale down for thumbnails or scale up for print.

Common use cases

  • Social media profile pictures — resize to 400×400 or 1080×1080
  • Email attachments — scale down large photos to reduce file size
  • Web banners — output exact 1920×1080 or OG image 1200×630
  • Thumbnails — quickly resize images to 150×150