Barely six weeks left to the U.S. presidential election, Google is assisting millions of users to the ballot box with its Monday doodle. And depending on your state, you can register to vote online, by mail or in person.

Google's doodle turns letters into voters, mailboxes and computers, and leads you to a page with instructions on how to register based on your state of residence.

With comprehensive guide outlining voting requirements and registration deadlines, Google is reminding Americans to register to vote.

The Doodle was created to celebrate National Voter Registration Day, which falls on the fourth Tuesday of every September.

While the Democratic nominee Hillary Clinton and Republican nominee Donald Trump are the leading favorites, voters can also vote for Green Party candidate Jill Stein and the Libertarian Party's Gary Johnson.