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100% In-Browser

Image Resizer

Resize images online for free. Change dimensions by pixels, percentage, or target aspect ratio.

Drop your image here to resize or convert

Change width, height, and convert formats (PNG, JPG, WebP) directly in browser

How to Use Image Resizer

  1. Select or drop your image into the Image Resizer area.
  2. Adjust dimensions, compression ratio, format, or crop area using the interactive controls.
  3. Watch the real-time preview update automatically with before and after comparisons.
  4. Click download to save your optimized high-resolution image directly to your device.

About this Tool

Image Resizer is a high-speed, privacy-first web utility built for professionals, creators, developers, and students. By executing all logic locally within your browser, Vectoolz guarantees ultra-fast processing speeds, zero network bottlenecks, and ironclad confidentiality for your sensitive documents and data.

Frequently Asked Questions

Common questions about Image Resizer, accuracy, and browser-side security.

JPG, PNG, WebP, and most common image formats are supported.
Reducing image size can reduce quality. Use the quality slider to balance file size and sharpness.
Yes — the aspect ratio lock is enabled by default. Changing width will auto-adjust height.
There is no hard limit. Very large images may take a few seconds to process in the browser.