You can either use Vanity-ETH online at vanity-eth.tk, or download it for a totally offline usage.

The easiest way to download Vanity-ETH is from the following link: > Download Vanity-ETH <

Just unzip the downloaded archive, and open vanity-eth.html with your favorite browser.

Clone Vanity-ETH (git clone https://github.com/bokub/vanity-eth) or download and unzip the source code

Run the following in the vanity-eth folder:

npm i
npm run build

When finished, open index.html with your favorite browser.