Resize Image Online Free

Use our free tool to resize image online, reduce image size in KB, or adjust dimensions for social media platforms like Instagram, WhatsApp, and Facebook.

Home / Image Resizer

Upload Image

📤

Drag & Drop Image

or click to select

Original Size: -
Dimensions: -
Aspect Ratio: -

Preview

Image preview will appear here

Resize Settings

90%
Processing...
Tip: Uncheck "Maintain Aspect Ratio" to resize to exact dimensions. Check it to scale proportionally.

About Image Resizer

The Image Resizer tool allows you to resize images to specific dimensions while maintaining quality. All processing happens locally in your browser - your images are never uploaded to any server.

How to Use

  1. Upload an image by dragging and dropping or clicking the upload area
  2. Set your desired width and height in pixels
  3. Choose whether to maintain aspect ratio
  4. Adjust quality and output format if needed
  5. Click "Download Resized Image" to save your file

Features

  • Resize to specific pixel dimensions
  • Maintain aspect ratio option
  • Adjustable quality slider
  • Multiple output formats (JPEG, PNG, WebP, BMP)
  • Real-time preview
  • File information display

Tips for Best Results

  • For web use, 72-96 DPI is standard
  • Keep quality above 70% for good results
  • Use JPEG for photos, PNG for graphics
  • Larger dimensions = larger file size

FAQ

What's the maximum image size I can resize?
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There's no hard limit, but your browser's memory is the constraint. Most modern browsers can handle images up to 100MB.

Will resizing reduce image quality?
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Resizing itself doesn't reduce quality, but compression might. Adjust the quality slider to balance between file size and quality.

What does "Maintain Aspect Ratio" do?
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When enabled, it keeps the image's proportions the same. If you set only width, height adjusts automatically to maintain the ratio.

Which format should I use?
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Use JPEG for photos, PNG for images with transparency, WebP for modern browsers, and BMP for compatibility.