Online PNG Compressor

Compress PNG images online to reduce file size while maintaining visual quality.

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4,380+

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 Online PNG Compressor 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 online PNG compressor tool allows you to upload PNG images and compress them to reduce file size. You can adjust the compression quality level to balance between file size reduction and image quality preservation. The tool processes images entirely in your browser using Canvas API, ensuring privacy and speed. After compression, you can download the optimized PNG file and see a side-by-side comparison with the original.

Save your calculation history with a free account

How to Use

Upload a PNG image by clicking the upload area or dragging and dropping.
Adjust the compression quality slider (higher = better quality but larger file).
Click the 'Compress PNG' button to process the image.
View the results including file size reduction percentage and download the compressed PNG.
Use the 'Compress Another' button to process more images.

Frequently Asked Questions

Find Quick Answers

Is my PNG image data secure?

Yes, all processing happens entirely in your browser using JavaScript. No images are uploaded to any server, ensuring complete privacy.

What is the maximum file size I can compress?

The tool can handle PNG files up to 10MB. For larger files, consider using desktop software for better performance.

Does compression reduce image quality?

Some quality loss may occur depending on your compression settings. The tool uses lossy compression - higher quality settings preserve more detail but result in larger files.

Can I compress multiple PNG files at once?

Currently, the tool processes one PNG file at a time. You can compress multiple files sequentially using the 'Compress Another' button after each operation.

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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