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Image Resizer & Compressor UPDATED
Resize, compress, and optimize images for web, mobile, social media, and print. Support for JPG, PNG, WEBP, AVIF, GIF, BMP, TIFF, HEIC, and RAW formats with real-time preview.
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How to Use Image Resizer & Compressor
1
Upload Images
Drag & drop or select multiple images (JPG, PNG, WEBP, AVIF, GIF, etc.)
2
Adjust Settings
Set dimensions, quality, format, and compression options
3
Preview & Compare
See real-time preview with file size savings and quality comparison
4
Download Results
Download individual images or all files as ZIP archive
Upload Images
Drag & drop images or click to browse. Supports multiple formats.
Drop images here or click to browse
Supports JPG, PNG, WEBP, AVIF, GIF, BMP, TIFF, HEIC, RAW
JPG
PNG
WEBP
AVIF
GIF
BMP
TIFF
HEIC
RAW
Resize & Compression Settings
Adjust dimensions, quality, and format for optimal results
Resize Options
Maintain Aspect Ratio
Compression Options
85%
Smaller File
Better Quality
Remove Metadata
Progressive JPEG
Quick Presets
One-click optimization for common use cases
Web Optimization
WEBP format, 80% quality, optimized for fast loading
Social Media
JPG format, 1080px longest side, 85% quality
Mobile App
Multiple sizes, PNG for icons, JPG for photos
Print Ready
High resolution, 300 DPI, TIFF format
Image Resizing & Compression Guide
Understanding Image Resizing
Image resizing involves changing the dimensions of an image while maintaining or adjusting its quality. There are several key concepts to understand:
Aspect Ratio
The proportional relationship between an image's width and height. Maintaining aspect ratio prevents distortion.
Resolution
The number of pixels in an image. Higher resolution means more detail but larger file size.
Interpolation
The algorithm used to add or remove pixels when resizing. Different methods affect quality and sharpness.
Compression: Lossy vs Lossless
Image compression reduces file size while attempting to maintain visual quality. There are two main types:
| Feature | Lossy Compression | Lossless Compression |
|---|---|---|
| File Size Reduction | Significant (50-90%) | Moderate (10-50%) |
| Quality Loss | Permanent, irreversible | No quality loss |
| Best For | Photos, web images | Graphics, text, logos |
| Common Formats | JPG, WEBP, AVIF | PNG, GIF, BMP |
Image Format Comparison
JPG/JPEG
Compression:
Lossy
Best For:
Photographs
Transparency:
No
Animation:
No
PNG
Compression:
Lossless
Best For:
Graphics, Logos
Transparency:
Yes
Animation:
No
WEBP
Compression:
Both
Best For:
Web Images
Transparency:
Yes
Animation:
Yes
AVIF
Compression:
Both
Best For:
Next-gen Web
Transparency:
Yes
Animation:
Yes
Optimization Use Cases
E-commerce
Optimize product images for fast loading while maintaining quality for zoom features.
WEBP format, 85% quality, multiple sizes
Blog & News
Balance quality and file size for featured images and in-content graphics.
JPG format, 75% quality, 1200px width
Mobile Apps
Create multiple resolutions for different screen densities and devices.
PNG for icons, JPG for photos, multiple DPIs
Print Media
Maintain high resolution and color accuracy for professional printing.
TIFF format, 300 DPI, CMYK color space
Frequently Asked Questions
What's the difference between resizing and compression?
Resizing changes the physical dimensions (pixel count) of an image, while compression reduces file size by optimizing how image data is stored. You can resize without compressing, or compress without resizing.
Which format should I use for my website?
For photographs: WEBP or AVIF (with JPG fallback). For graphics with transparency: PNG or WEBP. For maximum compatibility: JPG for photos, PNG for graphics.
How does quality setting affect my images?
Quality settings control the compression level. Higher values preserve more detail but create larger files. For web use, 75-85% is typically optimal for JPG/WEBP.
Can I resize images without losing quality?
You can only maintain quality when downscaling (making images smaller). Upscaling always reduces quality as it involves creating new pixels through interpolation.
What is aspect ratio and why is it important?
Aspect ratio is the proportional relationship between width and height. Maintaining it prevents distortion. Common ratios include 4:3, 16:9, and 1:1 (square).
How do I choose the right dimensions?
Consider your use case: Social media (1080px), web banners (1200px), mobile screens (750px), print (300 DPI). Always consider your target display size.
What are progressive JPEGs?
Progressive JPEGs load in multiple passes, showing a low-quality version first that gradually improves. This improves perceived loading speed for web images.
How much can I compress an image?
Compression depends on the image content. Simple graphics can be compressed heavily, while detailed photos need higher quality settings. Typical savings: 60-80% for web optimization.