Inglourious Basterds is an awesome and very violent movie. If you want to watch it online for free then here are a few options (we checked these as recently as March 2019):

You see yellow button? That is how you start the free trial and watch Inglourious Basterds for completely free! Click the image to get started.

Just cancel before the trial is up and you don’t pay anything, simple. If you’re wanting to watch Inglourious Basterds for free and in high quality right now, then a free trial with Amazon Prime HBO is your best option.