Question 1

How does image compression work?

Accepted Answer

Image compression reduces the file size of an image by lowering its quality or dimensions. Our tool uses the HTML5 Canvas API to re-encode your image with your chosen quality setting. Lower quality means smaller file size, but may introduce visible artifacts.

Question 2

Will compression reduce image quality?

Accepted Answer

Yes, lossy compression reduces quality to achieve smaller file sizes. However, at quality settings of 70-90%, the visual difference is often imperceptible while file size can be reduced by 50% or more. You can preview the result before downloading.

Question 3

Is my data uploaded to a server?

Accepted Answer

No. All compression happens entirely within your browser using JavaScript. Your images are never uploaded to any server, ensuring complete privacy and security.

Question 4

What image formats are supported?

Accepted Answer

You can upload JPEG, PNG, WebP, GIF, and BMP images. The output can be set to match the original format, or converted to JPEG or WebP for better compression.

Image Compressor

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