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LangKey · Dual Subtitles & Language Learning (YouTube, Netflix)

Chrome extension · Productivity · Education

  • Established publisher

A Chrome extension in Productivity · Education with 253 users, barely installed. Audience over the last 30 days: -8.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
253
Rating
not rated yet
Users, last 30 days
-8
Version
2.4.3
Updated in the store
2026-10-22
Published
2025-08-04
Manifest
V3
Browser access
9 permissions, 24 site patterns

How it has moved

Users
-8 since 02.10
229-1k · 15 readings
2026-10-22: released 2.4.3
  1. 2026-10-04244
  2. 2026-10-08229
  3. 2026-10-09242
  4. 2026-10-10254
  5. 2026-10-13259
  6. 2026-10-16265
  7. 2026-10-17264
  8. 2026-10-18269
  9. 2026-10-19260
  10. 2026-10-20266
  11. 2026-10-21267
  12. 2026-10-22271released 2.4.3
  13. 2026-10-23273
  14. 2026-10-241k
  15. 2026-11-01253
Users
+31 since 01.09
210-1k · 27 readings
2026-09-06: released 2.4.22026-10-22: released 2.4.3
  1. 2026-09-01222
  2. 2026-09-02219
  3. 2026-09-04220
  4. 2026-09-06221released 2.4.2
  5. 2026-09-07219
  6. 2026-09-13215
  7. 2026-09-15214
  8. 2026-09-16210
  9. 2026-09-20212
  10. 2026-09-21222
  11. 2026-09-25242
  12. 2026-09-26261
  13. 2026-10-04244
  14. 2026-10-08229
  15. 2026-10-09242
  16. 2026-10-10254
  17. 2026-10-13259
  18. 2026-10-16265
  19. 2026-10-17264
  20. 2026-10-18269
  21. 2026-10-19260
  22. 2026-10-20266
  23. 2026-10-21267
  24. 2026-10-22271released 2.4.3
  25. 2026-10-23273
  26. 2026-10-241k
  27. 2026-11-01253

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • See the address and title of every tab you have open tabs
  • Watch the network requests your browser makes webRequest
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
Show the remaining 6

The full permission history for this extension

Version history

  1. Version 2.4.3 · Asked for more permissions (33, was 31) (changed: site access, pages it runs its code on)
  2. Version 2.4.2

What changed recently

  1. Package size changed
  2. Asked for more permissions (33, was 31) (changed: site access, pages it runs its code on)
  3. Supported languages changed (44 → 43)
Show the remaining 5
  1. Store description rewritten (112 → 131 characters)
  2. Renamed from "LangKey | Language Learning: Video · Web · Select Translate · OCR" to "LangKey · Dual Subtitles & Language Learning (YouTube, Netflix)"
  3. Released version 2.4.3 (was 2.4.2)
  4. Package size changed
  5. Released version 2.4.2 (was 2.4.1)

Like this one

Listings the catalog judges closest in what they say they do.

  1. ClipToClass: AI Dual Subtitles & Language Lessons Describes nearly the same job, smaller audience 130 users ★ 5.0
  2. Lexi Lumi: Netflix & YouTube Dual Subtitles, AI Translations & Flashcards Describes nearly the same job, smaller audience 31 users
  3. Lingosive: AI Dual Subtitles & Translator — YouTube & Netflix Describes nearly the same job, smaller audience 6k users ★ 4.3
  4. FluentAI: Dual Subtitles for Netflix & more Describes nearly the same job, smaller audience 9k users ★ 3.6
  5. Telidioma: Interactive YouTube Subtitles Describes nearly the same job, smaller audience 1k users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/chhjnodmnfbljoindmeeafjiepfjpamn/badge.svg)](https://extops.dev/extensions/chhjnodmnfbljoindmeeafjiepfjpamn)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built