The original 1981 Sam Raimi classic is the low-budget gore fest to end all low-budget gore fests. If you've seen the recent remake, watching this should be top priority, if only to enjoy good horror camp. A cult classic through and through, it just wouldn't be Halloween without Bruce Campbell.
Watch it on YouTube or Hulu.
Zombie movies owe their long lineage to George A. Romero's 1968 classic that shocked audiences in its initial run. This harrowing tale of human survival finds a group of strangers facing strange terrors as the dead begin to walk once more. Thankfully, horror buffs can enjoy it for free, as the film is in the public domain.
Watch it on YouTube or Hulu.
Who doesn't love a good Stephen King adaptation? While some might watch the creepy and complex The Shining this Halloween, or laugh at the awkward horror of IT, why not pop some corn and watch this gem instead? It'll make you think twice about using back country roads or wandering through corn mazes.
Watch it on Hulu.
This well-known 1978 film follows Jennifer Hills on her summer holiday that quickly spirals into a nightmare. Her quest for revenge and blood makes this movie one of the most controversial films to date. I Spit on Your Grave may not be for everyone, due to its violent and highly graphic nature.
Watch it on Hulu.
Starring the famous horror icon Vincent Price, House on Haunted Hill is about five guests at a mysterious party, each of whom are promised $10,000 if they can last the night in the supposedly haunted mansion. Who ultimately lives to tell the tale may surprise you.
Watch it on YouTube or Hulu.
What do a puzzle box, a reanimated corpse and beings from another dimension have in common? Not much, except that they all appear in this movie. While the premise of the film -- solving a puzzle in order to summon creatures that want to torture you -- is a little odd, the movie makes up for it with amazing special effects and disturbing character designs.
Watch it on Hulu.
This 2004 Thai thriller chronicles the haunting of Tun, a young photographer who is stalked by the ghost of his ex-girlfriend. While at first it looks like a case of love that won't die, a more sinister truth is later revealed. Don't be deterred by the subtitles -- this film has great cinematography and even better scares.
Watch it on Hulu.
Asian horror films tend to be the cream of the crop, and this Japanese film is no exception. From the controversial director Takashi Miike, Audition is as close to watching someone actually being tortured as most people will probably ever get. Because of its realistic nature, some people have deemed it too intense to watch, but for those who dare to sit through the film: Good luck.
Watch it on Hulu.
Everyone loves going to the movies, but no one likes the steep ticket prices, long lines and overpriced concessions. Now that Blockbuster stores are obsolete, the only legal ways to enjoy movies at home is to channel surf, use an online service such as Netflix or Amazon Prime, or rent film from services like iTunes or Redbox.
If you're looking for a hauntingly good movie night this Halloween, there's no need to spend the extra bucks on a subscription or rental. There are plenty of classic horror films available for free on sites such as YouTube and Hulu.
See also: 13 Cheesy Horror Movies to Scare You With Laughter
Some were released just in time for All Hallows' Eve, while others are available year-round — in case you want to celebrate every day like its Halloween with scary movies.
Prep the popcorn and find something soft and cuddly to hide behind — listed above are some of the most frightening feature-length films you can watch on the Internet, free of charge.
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Image: Flickr, Katharina Jung
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