Image Resolution Increase Decrease

How to Use the Image Resolution Resizer Tool

Our Image Resolution Increase / Decrease Tool makes it fast and easy to scale image dimensions, maintain exact aspect ratios, and optimize file sizes directly inside your browser—no software installation required.

Step-by-Step Guide

1. Upload Your Image

• Click anywhere inside the dashed Upload Area or drag and drop your file into the box.
• Supported Formats: PNG, JPG/JPEG, and WebP.
• Once uploaded, the tool displays your image’s original dimensions and baseline file size (in KB or MB).

2. Adjust Image Resolution

You can resize your image in two ways:

• Custom Dimensions: Type your desired pixel values into the Width (px) or Height (px) input fields.
• Aspect Ratio Lock (🔒): By default, the aspect ratio lock is enabled. Changing the width automatically recalculates the height proportionally to prevent stretching. Click the lock icon (🔓) to toggle it off if you need custom stretching or cropping.
• Percentage Presets: Use the quick-scale buttons (25%, 50%, 75%, 150%, or 200%) to immediately shrink or enlarge your image relative to its original size.

3. Inspect Live Preview & File Size

Look at the Live Preview panel on the right side:

• Visual Check: See how your resized image looks instantly in high resolution.
• Target Resolution Badge: Displays the updated pixel dimensions (e.g., 1920 x 1080 px).
• Est. File Size: Calculates the updated file size in real time so you can optimize images for fast web page loading speeds.

4. Download Your Resized File

• Click the green “Download Resized Image” button.
• Your newly resized image will download immediately to your device with -resized appended to the original filename.

Quick Reference: Feature Summary

Feature / Icon	Function	Key Benefit
Aspect Ratio Lock (🔒)	Maintains width-to-height ratio	Prevents distorted/stretched photos
Percentage Presets	Quick scaling (25% to 200%)	Instant thumbnail creation or HD enlargement
Live Preview Panel	Real-time HTML5 rendering	Lets you verify quality before saving
File Size Estimator	Displays real-time output weight (KB/MB)	Ideal for web performance and SEO optimization

💡 Privacy & Security Note: All image resizing and calculations happen 100% locally in your browser using HTML5 Canvas technology. Your photos are never uploaded to any external server or stored anywhere online.