The fifth Republican presidential debate airs on CNN tonight: Find out here how you can live stream it online for free.

The final Republican debate of 2015 will take place tonight in Las Vegas, Nev. and will begin at 6 p.m. ET for the undercard debate followed by the main debate at 8:30 p.m. ET.

There will be nine GOP candidates at the main debate: Jeb Bush, Ben Carson, Chris Christie, Ted Cruz, Carly Fiorina, John Kasich, Rand Paul, Marco Rubio and Donald Trump.

The undercard debate features Lindsay Graham, Mike Huckabee, George Pataki and Rick Santorum.

The GOP debate is being moderated by CNN's Wolf Blitzer and Dana Bash and Salem Radio Network talk show host Hugh Hewitt.

Watch the GOP Debate Free Online Or Via Mobile Devices

So what if you're not near a TV and still want to see the GOP debate live as it happens? If you can't watch the CNN broadcast on television, the network is offering a live stream on its website at CNN.com.

CNN also has its own app on iOS and Android, where you can watch live TV. The network is said to be offering a live stream of the debate with no need for a login.

Keep Up With the GOP Debate Via Social Media

Want to live tweet and keep up with updates from the Republican presidential debate? Use the hashtag #GOPDebate to follow along. You can also follow CNN on Twitter.