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Hulu's subtitle menu gives you exactly one track at a time. There's no dual-subtitle setting, no built-in dictionary, and no way to slow down or replay a single line — the features language learners actually need. And the most popular learning extension, Language Reactor, won't help you here: it only works on Netflix and YouTube.
The good news is that Hulu carries a serious amount of learner-relevant content — anime like Demon Slayer, Korean dramas, and telenovelas — and two tools can turn it into study material.
Option 1: LangPanda (paid, the full workflow)
LangPanda is a browser extension for Chrome, Brave, and Edge that lists Hulu among its supported sites, alongside Netflix, Disney+, Amazon Prime, and 20+ others. Instead of just stacking two subtitle tracks, it makes the subtitles interactive: click any word for an instant dictionary definition, save it to the built-in spaced-repetition system (or export to Anki with audio and screenshots), and track your known-word count across everything you watch.
That last part matters if Hulu is only one of the places you watch. A vocabulary tool that works on a single platform splits your learning history; LangPanda keeps one word database across Hulu, Netflix, YouTube, and the rest.
It costs $8.88/month or $58.88/year (about 45% less), with a 7-day free trial and a 30-day money-back guarantee, and covers 36 languages with native dictionaries.
Option 2: asbplayer (free, more manual)
asbplayer is a free, open-source extension (MIT license) that works by loading an external subtitle file — one you supply — alongside the video. Because it doesn't depend on the platform's own subtitle system, it works on virtually any streaming site, Hulu included. You get subtitle display, replay of the current line, and one-click Anki card creation.
The trade-off is the setup: you need to find a subtitle file for the exact episode you're watching and sync it yourself. For popular anime that's usually doable; for Hulu originals it can be a dead end. There's no built-in dictionary or review system either — asbplayer assumes you're bringing Anki and a dictionary tool of your own.
Which one should you use?
If you want to open Hulu tonight and start mining vocabulary with zero setup, LangPanda is the one built for that. If you're a committed Anki user who doesn't mind hunting down subtitle files, asbplayer costs nothing and rewards the effort. (We compare them head-to-head in our asbplayer vs Language Reactor and Tool Scoreboard pages.)