Overview
Learn to speak a language with YouTube: dual subtitles, shadowing line by line, and spaced repetition of the words you keep.
Learn to speak a language with the YouTube videos you already love. JoJoJi turns any YouTube video with subtitles into a speaking lesson: • Dual subtitles — the original line and its translation, with pronunciation for Japanese, Korean, Chinese, Thai and more. • Shadowing — press Shadow (or H): each line plays again, slower, and you say it out loud with the native speaker. • Click any word — its meaning in this sentence and how to say it. Nothing else in your way. • Keep it — one click turns the word into a flashcard, with the original sentence. Review it a few minutes a day at jojoji.app, right before you would forget it. No setup, no decks to build, no settings to learn. JoJoJi requires a subscription. Works on YouTube in Google Chrome on desktop. YouTube is a trademark of Google LLC. JoJoJi is not affiliated with Google.
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Details
- Version0.1.2
- UpdatedNovember 11, 2026
- FeaturesOffers in-app purchases
- Size423KiB
- Languages13 languages
- DeveloperTimothée Jean LEGER ESPERANDIEUWebsite
27 Rue de Montaud Saint-Étienne 42000 FREmail
theanemonelab@gmail.comPhone
+33 6 25 13 62 51 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
Privacy
JoJoJi has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
JoJoJi handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site