Image Resizer

Resize images to an exact width and height in pixels, with optional aspect-ratio lock.

Input data is processed in your browser
Data is never sent to a server

Tool

Drag & drop an image file here

Images are processed entirely in your browser and never sent to a server.

What is the Image Resizer?

The Image Resizer lets you resize an image to an exact width and height in pixels. You can lock the aspect ratio so that changing one dimension automatically adjusts the other, preventing unwanted distortion.

All processing happens entirely in your browser using the Canvas API — your image data is never sent to a server.

Use Cases

  • Resize a thumbnail image to an exact target size
  • Adjust an image to fit a specific social media platform's dimensions
  • Shrink a high-resolution photo before publishing it on a blog

How to Use

  1. Select an image file, or drag and drop it into the drop zone.
  2. Enter the width and height in pixels. Use the lock icon to keep (or release) the aspect ratio.
  3. Or use the 50% / 75% / 150% / 200% preset buttons for quick scaling.
  4. Click "Resize" to preview the result.
  5. Click "Download" to save the resized image.

FAQ

Is this tool free?

Yes, it is completely free to use.

Is my image sent to a server?

No. All processing happens in your browser using the Canvas API. Images are never uploaded to a server.

Can I resize while keeping the aspect ratio?

Yes. With the lock icon enabled, changing either the width or height automatically recalculates the other value.

Can I enlarge an image?

Yes, presets up to 200% are available, but note that enlarging beyond the original size can make the image look blurry.