Image Resizer

Resize photos to exact pixels with aspect-ratio lock. Resize images online to any width and height in pixels. Aspect-ratio lock, presets for social media and instant download. Free image resizer — no upload required.

This tool runs 100% in your browser. Your input is never sent to any server — you can even go offline after the page loads.

About the Image Resizer

Exact pixel dimensions are a hard requirement almost everywhere: profile pictures, marketplace listings, banner slots, thumbnails. This resizer changes width and height to whatever you need, with an aspect-ratio lock that prevents accidental stretching, percentage scaling for quick shrinks, and common social-media presets. All processing happens on your device through the HTML canvas — no upload, no watermark, no sign-up.

How to use the Image Resizer

  1. Load your image by dropping or browsing.
  2. Enter the target width — height auto-fills if locked.
  3. Choose a preset if one matches your target.
  4. Download the resized image.

Key features

Will resizing make my image blurry?
Downscaling usually looks sharp; upscaling always loses some quality because pixels must be invented. Start from the largest original you have.
Can I resize without changing the aspect ratio?
Yes — the lock keeps width and height in proportion. Unlock it only when you intentionally need a different shape.

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