Question 1

Are images uploaded to a server?

Accepted Answer

No, compression is done locally in your browser using the Canvas API.

Question 2

Which formats are supported?

Accepted Answer

JPEG, PNG, and WebP as input, saved in the original or a chosen output format.

Question 3

How much smaller will the file get?

Accepted Answer

It depends on the image and quality setting, but 30–70% size reduction is common with minimal visible quality loss.

Question 4

Can I compress multiple images at once?

Accepted Answer

Yes, batch upload is supported for processing several images together.

Question 5

Does compression affect resolution?

Accepted Answer

No, only file size is reduced — the pixel dimensions stay the same unless you resize separately.

Image Compressor

How to use it