LingTube - YouTube Dual Subtitles Translator & AI Dubbing

YouTube dual bilingual subs + AI dubbing. Translate captions/speech w/o captions. Natural voice. Coursera, Udemy, Bilibili, TikTok.

LingTube is a YouTube dual subtitles translator and AI dubbing extension. Open any video and start with one click: it shows bilingual dual subtitles, translates foreign-language captions, or recognizes speech in videos without captions, then reads/dubs the translation in a natural voice — so you can understand foreign YouTube videos without constantly staring at subtitles. Enjoy instant AI dubbing, dual bilingual subtitles, and speech translation across YouTube, Coursera, Udemy, Bilibili, and TikTok — simply play any video to get started. Ideal for language learning, courses, technical tutorials, news, podcasts, anime, movie clips, and watching during a commute. Key features • YouTube dual subtitles & bilingual captions: translation + original on screen, or translation-only / original-only • YouTube video translator: translate subtitles, speech, and no-caption video content • AI dubbing / voice read-aloud: natural voices with Edge TTS or browser voices • No-caption handling: automatically convert speech to text, then translate and read it aloud • Context-aware translation: supports Google Translate and OpenAI-compatible APIs for long sentences and specialized content • AI learning tools: generate vocabulary, grammar, exercises, scoring, and review content • Audio mixing: original video audio and translated voice play together with separate volume controls • One-click start/stop + Alt+Shift+V hotkey • AI video summary: summarize long videos, extract key points, explain technical terms, and jump to relevant timestamps using the full translated transcript Privacy • Runs only on YouTube, Coursera, Udemy, Bilibili, and TikTok pages • Settings are saved in the local browser • Subtitle, translation, and voice requests are sent only to the services you enable Website: https://lingtube.xyz