Register

Play now.

Supernatural fanart Welcome to Supernatural at WatchOnlineFree.TV, a great website for those who love to watch Supernatural online for free. Here you can stream all episodes online without having to downloading any additional software on your computer. If you missed the latest Supernatural episode on TV, make sure to check our website to follow up on this series!


Latest episode, aired 3 days ago.

The Werther Project
Episode 19
Air Date: Apr 22
Season: 10

The Werther Project

Sam learns that former Men of Letters, Magnus, once built a magical box and Sam sets out to find it in the hopes it can cure Dean of the Mar…

Watch episode »

Book of the Damned
Episode 18
Air Date: Apr 15
Season: 10

Book of the Damned

Charlie calls Sam and Dean to tell them she found the Book of the Dead which could help remove the Mark of Cain. The Winchesters race to her…

Watch episode »
Inside Man
Episode 17
Air Date: Apr 1
Season: 10

Inside Man

Sam and Castiel follow up on a lead about the Mark of Cain. Dean and Rowena meet.

Watch episode »
Paint It Black
Episode 16
Air Date: Mar 25
Season: 10

Paint It Black

Sam and Dean investigate a string of suicides committed by people with little in common other than the identical, grisly method of death –…

Watch episode »
The Things They Carried
Episode 15
Air Date: Mar 18
Season: 10

The Things They Carried

Despite Dean's directive to forget about looking for a cure for the Mark of Cain, Sam continues to do research. Dean suspects Sam is hiding …

Watch episode »
List all episodes of this series