image resizer
Image Resizer | Resize, compress, and optimize your images

Image Resizer Tool

Resize, compress, and optimize your images with our powerful online free tool. No registration required, no need to install software. Perfect for web developers, designers, and photographers.


Options

Preview

Drag & drop your image here or click to browse

Preview
No file selected
Width
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Height
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Processed Image

Result
New Width
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New Height
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About the Image Resizer Tool

Powerful Features

Professional-Grade Image Processing: our image resizer provides all the tools you need to prepare images for web, print, or digital media. With advanced algorithms, we ensure your images maintain quality while reducing file size.
Key features include:

  • Multiple resize methods (percentage, exact dimensions, width/height constraints)
  • Various aspect ratio options including custom ratios
  • Output format conversion (JPEG, PNG, WebP)
  • Quality and compression controls
  • Image enhancement options (grayscale, auto-enhance, flipping)
  • Batch processing capabilities

What Is an Image Resizer Tool?

An image resizer tool changes the dimensions of a photo or picture, making it smaller or larger without changing or losing the basic content. It works on many file types, with JPG, PNG, and GIF being the most common.
Resizing changes the height and width, so the picture keeps its shape but fits your needs. Cropping, on the other hand, cuts out a section of the image so some parts get removed. Most tools support direct resizing, cropping, or both. This flexibility makes it easy to prepare graphics for websites, slideshows, or other formats.

Key Features of Good Image Resizer Tools

You can select between many options:

  • Resize method: percentage, by widht, by eight, exact dimensions, fill area
  • Resize percentage: %
  • Aspect Ratio: Original, Square (1:1), 4:3, 16:9, 3:2, Golden ratio
  • Output Format: jpg, png, webp
  • Additional Options: Convert to Grayscale, Flip Horizontal, Flip Vertical, Auto-Enhance

A good tool balances ease of use with strong performance, making quick work of large or small projects.

Privacy-Focused Conversion

All image conversions are processed securely in your browser. Unlike server-based solutions, our converter ensures that your image files never leave your device. This offers full privacy and security, making the tool suitable for professionals handling sensitive media assets.

  • 100% local browser conversion
  • No uploads or cloud processing
  • Temporary file handling with instant deletion

How to Use an Image Resizer Tool Step-by-Step

Our tool is designed with ease of use and performance in mind. Whether you're converting one image or many, you get access to a powerful, intuitive experience:

  1. Pick your image: Upload or select the photo you want to resize.
  2. Select a size or enter new dimensions: Use a preset, type in width and height, or drag a slider.
  3. Check quality settings: Adjust quality or resolution, if needed.
  4. Preview changes (if the tool offers this): See how your resized image will look.
  5. Save or download: Export the resized version to your device or cloud storage.