Upload an image and resize it to exact pixel dimensions. Lock the aspect ratio to scale proportionally. Save as JPG, PNG or WEBP.

Choose file or drag image here PNG, JPG, WEBP supported
Preview Preview
Width (px)
Height (px)
Reduce by

How to Use the Image Resizer

  1. Upload your image — drag and drop or click to browse. PNG, JPG, and WEBP are all supported.

  2. Set dimensions — enter the width or height in pixels. With the lock active, the other dimension updates automatically to preserve the ratio.

  3. Use a preset — click −25%, −50%, or −75% to quickly scale down, or Original to reset.

  4. Save — choose JPG, PNG, or WEBP from the Save menu.

What Is the Image Resizer?

The Image Resizer lets you change the pixel dimensions of any image — right in your browser, with nothing to install. It's useful for making images fit a specific platform requirement, reducing file size before uploading, or standardising dimensions across a batch of photos. The aspect ratio lock ensures your image never gets distorted when you only know one dimension.

Frequently Asked Questions

Scaling down is fine and produces clean results. Scaling up beyond the original resolution will reduce sharpness, as the tool interpolates new pixels. For best results, always start from a high-resolution original.
JPG, PNG, and WEBP. JPG is best for photos, PNG for images with transparency, and WEBP for the smallest file size on the web.
No hard limit, but very large images (above ~6000px) may be slow depending on your device.
No. All processing happens entirely in your browser. Your files never leave your device.
Yes, completely free. No signup, no account, no hidden fees.
All modern browsers — Chrome, Firefox, Safari, and Edge on desktop and mobile.