The best alternatives to JustParty are Netflix Hangouts, Trim, and Jumpskip for Netflix. If these 3 options don't work for you, we've listed a few more alternatives below.
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No more wasting time deciding what to watch on Netflix. This Chrome extension makes IMDB and rotten tomato ratings appear right on the Netflix page. Try it today!
Jumpskip is a Chrome Extension for Netflix that helps you watch movies without being scared by jumpscares. Skip, mute, get a warning when jumpscares are about to happen, view all the jumpscare timestamps, and much more.
Flickcall is a privacy-focused browser extension to watch movies & TV shows together. Your personal chats & video stream are delivered directly to peers. Supports Netflix, Youtube, Primevideo, Hotstar, & Zee5. It is like Netflix party with video-call.