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Kotoba Flow — Language Learning with YouTube

Chrome extension by Kotoba Flow · Productivity · Education

A Chrome extension in Productivity · Education with 3 users, barely installed.

Specific sites only: 9 match patterns.

What the developer says, and 2 screenshots

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

Users
3
Rating
5.0 (1 ratings)
Users, last 7 days
+2
Rating, last 30 days
Not watched long enough to say
Version
0.3.5
Updated in the store
2026-10-31
Published
2026-10-24
Manifest
V3
Browser access
8 permissions, 9 site patterns

How it has moved

Users
+2 since 25.10
1-3 · 4 readings
2026-10-25: appeared in the store2026-10-26: released 0.1.42026-10-26: released 0.1.52026-10-28: released 0.1.82026-10-29: released 0.1.102026-10-30: released 0.1.112026-10-30: released 0.3.02026-10-31: released 0.3.5
  1. 2026-10-251appeared in the store
  2. 2026-10-282released 0.1.8
  3. 2026-10-293released 0.1.10
  4. 2026-10-313released 0.3.5
Rating
+5.00 since 25.10
reviewsrating 0.00-5.00 · 4 readings
2026-10-25: appeared in the store2026-10-26: released 0.1.42026-10-26: released 0.1.52026-10-28: released 0.1.82026-10-29: released 0.1.102026-10-30: released 0.1.112026-10-30: released 0.3.02026-10-31: released 0.3.5
  1. 2026-10-25reviews0rating0.00appeared in the store
  2. 2026-10-28reviews1rating5.00released 0.1.8
  3. 2026-10-29reviews1rating5.00released 0.1.10
  4. 2026-10-31reviews1rating5.00released 0.3.5
Users
+2 since 25.10
1-3 · 4 readings
2026-10-25: appeared in the store2026-10-26: released 0.1.42026-10-26: released 0.1.52026-10-28: released 0.1.82026-10-29: released 0.1.102026-10-30: released 0.1.112026-10-30: released 0.3.02026-10-31: released 0.3.5
  1. 2026-10-251appeared in the store
  2. 2026-10-282released 0.1.8
  3. 2026-10-293released 0.1.10
  4. 2026-10-313released 0.3.5
Rating
+5.00 since 25.10
reviewsrating 0.00-5.00 · 4 readings
2026-10-25: appeared in the store2026-10-26: released 0.1.42026-10-26: released 0.1.52026-10-28: released 0.1.82026-10-29: released 0.1.102026-10-30: released 0.1.112026-10-30: released 0.3.02026-10-31: released 0.3.5
  1. 2026-10-25reviews0rating0.00appeared in the store
  2. 2026-10-28reviews1rating5.00released 0.1.8
  3. 2026-10-29reviews1rating5.00released 0.1.10
  4. 2026-10-31reviews1rating5.00released 0.3.5

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

Specific sites only: 9 match patterns.

  • https://*.youtube.com/*
  • https://jisho.org/*
  • https://api.mymemory.translated.net/*
Show the remaining 6
  • https://api.openai.com/*
  • https://unpkg.com/kuromoji@0.1.2/*
  • https://www.kotobalens.com/*
  • https://api.anthropic.com/*
  • https://api.dictionaryapi.dev/*
  • https://en.wiktionary.org/*
  • Capture the contents of a tab tabCapture
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 5
  • Schedule work to run later alarms
  • Tell whether you are away from the computer idle
  • Run work in a hidden page offscreen
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

Version history

  1. Version 0.3.5
  2. Version 0.3.0
  3. Version 0.1.11
Show the remaining 4
  1. Version 0.1.10 · Asked for more permissions (17, was 16) (changed: browser permissions)
  2. Version 0.1.8 · Asked for fewer permissions (16, was 17) (changed: site access, sites that can connect to it)
  3. Version 0.1.5 · Changed where it works (changed: pages it runs its code on, sites that can connect to it)
  4. Version 0.1.4 · Changed where it works (changed: pages it runs its code on, sites that can connect to it)

What changed recently

  1. Package size changed
  2. Released version 0.3.5 (was 0.3.0)
  3. Package size changed
Show the remaining 9
  1. Released version 0.3.0 (was 0.1.11)
  2. Package size changed
  3. Released version 0.1.11 (was 0.1.10)
  4. Package size changed
  5. Asked for more permissions (17, was 16) (changed: browser permissions)
  6. Released version 0.1.10 (was 0.1.8)
  7. Package size changed
  8. Asked for fewer permissions (16, was 17) (changed: site access, sites that can connect to it)
  9. Released version 0.1.8 (was 0.1.5)

Older entries and the full day by day series are in the app.

The publisher

Kotoba Flow.

Like this one

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

  1. Language Learning with YouTube & ChatGPT Describes nearly the same job, smaller audience 10 users ★ 5.0
  2. Language Learning Assistant Describes nearly the same job, smaller audience 6 users
  3. YouTube Subtitle Sidekick Describes nearly the same job, smaller audience 18 users
  4. ListenUp Describes nearly the same job, smaller audience 7 users
  5. EngReel: Learn English While You Watch Describes nearly the same job, smaller audience 2 users

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/ipjniapblpjledigfajjaokahjjldfac/badge.svg)](https://extops.dev/extensions/ipjniapblpjledigfajjaokahjjldfac)

HTML

<a href="https://extops.dev/extensions/ipjniapblpjledigfajjaokahjjldfac"><img src="https://extops.dev/extensions/ipjniapblpjledigfajjaokahjjldfac/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built