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Bilingual YouTube subtitles. Pause to OCR-translate on-screen text, tap subtitle words to save them, and switch color themes. Detailed description: Learn a language while you watch — without paying a cent. Most "dual subtitle" and language-learning extensions lock their best features behind a subscription. This one doesn't. Every feature below is free, with no account, no trial, no paywall, and no "Pro" upsell. Completely free, and it will never charge you. What it does YouTube Dual Subtitles shows the original subtitle and its translation on screen at the same time, so you can follow the content and learn the language in the same breath. Pause anytime to study a line, save the words you don't know, and come back to them later. Core features (all free) Dual subtitles — see the original and the translation together, or switch to original-only / translation-only with one click. Pause to reveal — keep just the original while playing, and reveal the translation the moment you pause. Pause OCR translation — translate text that's burned into the video (hardcoded subtitles, on-screen signs, slides). Pause the video and the extension reads the pixels and translates them on the spot — something most paid tools charge extra for. One-tap vocabulary — select or click any subtitle word to save it together with its full sentence, the video title, a clickable timestamp, and its translation. Build your personal word bank as you watch. Vocabulary manager — search, browse with pagination, and export everything to CSV for Anki or your own review workflow. Your words, your data. Themes & layout — pick from multiple high-contrast color themes, adjust font size, line spacing, and background opacity, and freely drag and resize the subtitle box anywhere on the player. 9 translation languages — Simplified/Traditional Chinese, Japanese, Korean, Spanish, French, German, and Russian. Private by design OCR runs locally on your device. Your saved words stay in your browser. No sign-up, no tracking, no selling your data. Why install it If you watch YouTube to learn a language — or just to understand creators in another tongue — this gives you the dual subtitles, screen-text OCR, and word-collection tools that other apps put behind a monthly fee. Install once, use everything, pay nothing. Free forever. No subscription. No catch.
Jul 31, 2026
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