Resizer PNG

Free online tool to resize PNG images with precise control over dimensions, quality, and format.

Request Feature / Support

9,596+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Resizer PNG processes input data instantly inside your browser.

Sample Input Image dimensions: 4000 x 3000 pixels (File size: 5MB PNG)

Computed Result Output WebP Image: 1920 x 1440 pixels (File size: 350KB, 88% reduction)

Execution Mode Client-Side In-Browser JS

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About This Tool

This PNG Resizer tool allows you to easily resize PNG images directly in your browser. Upload any PNG file, set custom width and height (with optional aspect ratio lock), adjust compression quality, and choose output format (PNG, JPEG, or WebP). The tool processes images locally using HTML5 Canvas API - no data is sent to servers. Perfect for optimizing images for web, social media, or documents.

Save your calculation history with a free account

How to Use

Upload a PNG image using the drag-and-drop area or file browser
Set desired width and height (check 'Maintain aspect ratio' to auto-adjust)
Adjust quality slider for compression (higher = better quality, larger file)
Choose output format (PNG, JPEG, or WebP)
Click 'Resize Image' to process
Download the resized image or copy it to clipboard

Frequently Asked Questions

Find Quick Answers

Is my image data secure?

Yes, all processing happens locally in your browser using JavaScript. No images are uploaded to any server.

What are the maximum image dimensions?

The tool can handle images up to 8192x8192 pixels. Larger images may cause browser performance issues.

Does resizing affect image quality?

Resizing always involves some quality loss. Use the quality slider to balance file size and visual quality.

What browsers are supported?

All modern browsers with HTML5 Canvas support: Chrome, Firefox, Safari, Edge (latest versions).

Can I resize multiple images at once?

Currently, the tool processes one image at a time. Clear the current image to upload another.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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