How to use Gzip Compressor

What Gzip Compressor does#

Compress any file to gzip (.gz) to shrink its size, or decompress an existing .gz file — entirely in your browser. See how many bytes you saved. Nothing is uploaded.

How to use it#

Open the tool and select your file, or drag and drop it onto the page.
Adjust the available options to suit what you need.
Run the tool and preview the result.
Download your file in one click.

Your privacy#

Gzip Compressor runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.

Frequently asked questions

Is Gzip Compressor free to use?

Yes. Gzip Compressor is completely free and needs no account or sign-up.

Is my data private?

Yes. Gzip Compressor works entirely in your browser, so your data never leaves your device.

Do I need to install anything?

No. Gzip Compressor runs online in any modern browser, on desktop or mobile.