Question 1

How do I compress an image?

Accepted Answer

Select or drop a JPEG, PNG, or WebP image, choose the output format and quality level, then download the compressed result. Everything runs in your browser, so there is no upload step.

Question 2

Can I change the output format while compressing?

Accepted Answer

Yes. You can pick the output format among JPEG, PNG, and WebP, so you can convert and compress in the same step, for example turning a PNG into a smaller WebP.

Question 3

What quality level should I choose?

Accepted Answer

Lower quality gives smaller files with more visible artifacts, while higher quality keeps more detail at a larger size. For photos a mid-to-high quality with JPEG or WebP usually balances size and clarity well; keep in mind PNG is lossless so the quality slider has little effect on it.

Question 4

Is it free and does it work offline?

Accepted Answer

Yes, it is completely free with no account required. Because the compression happens entirely in your browser, it keeps working after the page has loaded even without an internet connection.

Question 5

Are my images uploaded to a server?

Accepted Answer

No. Your image is decoded and compressed locally in the browser and is never uploaded, sent to a server, or tracked.

Image Compressor

Format

FAQ