Thor Ragnarok is an awesome film which was a bit of a surprise hit for Marvel. If you want to watch Thor Ragnarok online for free then here are a few options (we checked these as recently as February 2019):

 

 

Just cancel before the 30 days is up and you don’t pay anything, simple. If you’re wanting to watch Thor Ragnarok for free and in high quality right now, then a free trial with Amazon Video is probably your best option.