DuoNinja - Dual captions for YouTube videos icon

DuoNinja - Dual captions for YouTube videos

by Mink OÜ · duoninja.com · Education
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Learn languages with dual captions. Import your Duolingo vocabulary and learn it with flashcards.

Users
2,000
0 in 30 days
Rating
3.8 / 5
unchanged in 30 days
Ratings
17
0 in 30 days
Store rank
#20K
#17K among extensions
Version
2.2.2
updated 1 Oct 2026

Users

monthly, 3 years
601,5303,000Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 2,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
0817Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 17 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About DuoNinja - Dual captions for YouTube videos

============================== FEATURES DOUBLE CAPTIONS ☆ Display double captions for YouTube videos ☆ Look up any word ☆ Save words to practice with flashcards DUOLINGO IMPORT ☆ Import the vocabulary to DuoNinja (and from there to Anki, Quizlet etc.) ☆ Practice the words with flashcards and AI-generated example sentences ============================== DuoNinja is not affiliated with Duolingo or YouTube in any way.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months−1,000−33.3%00.00
1 year−1,000−33.3%00.00

Version history

73 versions recorded
2.2.21 Oct 2026
2.2.026 Sep 2026
2.2.126 Sep 2026
2.1.624 Sep 2026
2.1.521 Sep 2026
2.1.412 Sep 2026
2.1.311 Sep 2026
2.1.211 Aug 2026

Details

Category
Education
First seen
27 Jun 2023
Size
121 KB
Languages
en
Pricing
Free
Privacy policy
duoninja.com
Support
duoninja.com
Extension ID
cdiecbgkdbkloiniekbfblbdbjgehpgb

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
storage
Site access
http://localhost:3000/*https://www.duoninja.com/*https://www.duolingo.com/*https://www.youtube.com/*

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