Language Reactor

A browser tool for dual subtitles on video. Useful if you already watch. Not a beginner syllabus.

5 min read
IntermediateFreemiumModerateListeningBrowser
Best for

Learners who already watch Japanese video

Avoid if

You do not watch Japanese shows

Pricing

Free core; paid extras

Platform

Browser

Ease of use

Moderate

Pros

  • Learners who already watch Japanese video
  • People who want dual subtitles
  • Intermediate students mining lines

Cons

  • You do not watch Japanese shows
  • A podcast already covers ear time
  • Setup will eat the week

Language Reactor is a browser extension that adds dual subtitles and lookup to YouTube and Netflix.

Who it fits

It fits learners who already watch Japanese video and want the line in front of them.

Limits

It is not a course. Nihongo con Teppei is a simpler daily listen if you do not watch shows.

Sources checked

  • Language Reactor official product · Official product page used for the public description, platform, and current offering.