How does image compression work?

Image compression works by reducing the amount of data needed to represent the image. Lossy compression (like JPG) discards some visual information that humans can barely perceive, resulting in significantly smaller files.

Will compression affect image quality?

At quality levels above 70%, the difference is usually imperceptible to the human eye. You can use the slider to find the perfect balance between file size and quality.

What image formats can I compress?

PixelShift supports compressing PNG, JPG/JPEG, and WebP images.

Is there a file size limit?

Since processing happens in your browser, it depends on your device. Most modern devices handle images up to 50MB easily.

Compress Images Without Losing Quality

Reduce your image file size with adjustable compression. See the results in real-time before downloading.

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Drop your image(s) here

or click to browse — PNG, JPG, WebP supported

How to Compress Images

Upload Image

Drag & drop any PNG, JPG, or WebP image.

Adjust Quality

Use the slider to find the perfect balance of size and quality.

Download

Click download to save your smaller image.

Frequently Asked Questions

Image compression reduces the data needed to represent an image. Lossy compression discards visual information that humans can barely perceive, resulting in significantly smaller files with minimal visible quality loss.

At quality levels above 70%, the difference is usually imperceptible. Use the slider to preview the results in real-time and find the perfect balance.

PixelShift supports PNG, JPG/JPEG, and WebP images for compression.

No! All processing happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device.