Extension Tracker

Undertone 弦外：刷剧学外语的全能双语字幕工具

393 users Rated 5.00 from 1 rating Last updated 5 Nov 2026

By MKMMK Live in the Chrome Web Store baeckicjpfmgblnpnkdpfgbejobaeebe Search Google ↗ Last checked 6 Nov 2026, 05:33 UTC

The listing

What the Chrome Web Store shows, as of the last check

汉字太好懂，日语字幕看得懂、一关就听不懂？字幕先给读音，说到才亮汉字；口语缩略、语气、言外之意一眼看懂，没听清就逐句复读。日语功能最全，英语、韩语等 11 种外语也能看双语字幕；可在 Netflix、YouTube 上使用。Summary from the listing
Developer
MKMMK
Enhanced Safe Browsing
Not trusted. What this means →
Category
Productivity › Education
First published
14 Oct 2026
Last updated
5 Nov 2026
Version
1.3.1
Size
32.28 MiB
Minimum Chrome
116
Languages
2 languages

中文（中国）, 中文（台灣）

Website
https://undertone.day/
Support page
https://undertone.day/privacy/#contact
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
200Tracking began 16 Oct 202616 Oct23 Oct30 Oct6 Nov2026-10-16: 2 users2026-10-21: 3 users2026-10-24: 218 users2026-11-03: 370 users2026-11-05: 379 users2026-11-06: 393 users2026-11-06: new version2026-11-05: new version2026-11-03: new version2026-10-24: new version2026-10-20: new version2026-10-16: new version393200Tracking began16 Oct30 Oct2026-10-16: 2 users2026-10-21: 3 users2026-10-24: 218 users2026-11-03: 370 users2026-11-05: 379 users2026-11-06: 393 users2026-11-06: new version2026-11-05: new version2026-11-03: new version2026-10-24: new version2026-10-20: new version2026-10-16: new version393
Average rating
4.804.905.003 Nov4 Nov5 Nov6 Nov5.004.804.905.003 Nov5 Nov5.00
Number of ratings
13 Nov4 Nov5 Nov6 Nov113 Nov5 Nov1
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-063935.001
2026-11-053795.001
2026-11-033705.001
2026-10-24218––
2026-10-213––
2026-10-20–––
2026-10-162––
2026-10-15–––
Users, 7 days
+175
since a week ago
Users, 30 days
–
needs a month of history
Rank
#38,030
by users, of 289,024 extensions
In its category
#1,170
of 12,698 in Education

What changed

Every change found on a check, newest first

  1. New version 1.3.1, replacing 1.3.0.

  2. New version 1.3.0, replacing 1.2.0.

    Renamed from “Undertone 弦外：刷剧学日语的双语字幕” to “Undertone 弦外：刷剧学外语的全能双语字幕工具”.

    The summary on the listing changed.

  3. New version 1.2.0, replacing 1.1.0.

    Renamed from “Undertone 弦外：一个专为中文母语者准备的日语刷剧学习神器” to “Undertone 弦外：刷剧学日语的双语字幕”.

    Added the permission scripting. Removed the permission identity.

    Added the optional site http://*/*. Removed the optional site https://translate.googleapis.com/*.

    Now listed in 2 languages, from 1.

  4. New version 1.1.0, replacing 1.0.2.

    Renamed from “Undertone 弦外：看视频学外语” to “Undertone 弦外：一个专为中文母语者准备的日语刷剧学习神器”.

    The developer's contact email changed.

    The developer's website link changed.

    The privacy policy link changed.

  5. New version 1.0.2, replacing 1.0.1.

    The summary on the listing changed.

    Added the permissions alarms, identity.

    Added the optional sites http://127.0.0.1/*, http://localhost/*, https://*/*, https://api.deepseek.com/*, https://api.openai.com/* and 1 more.

    The developer's website link changed.

  6. New version 1.0.1, replacing 1.0.0.

Developer history

Moves to another publisher account and new contact emails, newest first

  1. The contact email changed.

    The developer's website link changed.

    The privacy policy link changed.

    What it can access changed on 3 Nov 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Sites
  • *://*.netflix.com/*netflix.com and its subdomains
  • *://*.nflxvideo.net/*nflxvideo.net and its subdomains
Sites where it runs scripts
  • *://*.netflix.com/*netflix.com and its subdomains
  • *://www.youtube.com/*www.youtube.com
Browser features
  • alarmsRun tasks on a schedule
  • offscreenOpen a hidden page for background work
  • scriptingRun scripts on sites it can reach
  • storageSave settings and data in your browser
Asked for later, if you agree
  • http://*/*Every website
  • http://127.0.0.1/*127.0.0.1
  • http://localhost/*localhost
  • https://*/*Every website
  • https://api.deepseek.com/*api.deepseek.com
  • https://api.openai.com/*api.openai.com

About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 6 Nov 2026, 05:33 UTC; next check around 13 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Undertone 弦外：刷剧学外语的全能双语字幕工具” (baeckicjpfmgblnpnkdpfgbejobaeebe). Chrome Web Store data, last checked 2026-11-06. https://extensiontracker.com/extension/baeckicjpfmgblnpnkdpfgbejobaeebe. Accessed 2026-11-08.
BibTeX
@misc{extensiontracker_baeckicjpfmgblnpnkdpfgbejobaeebe,
  title   = {Undertone 弦外：刷剧学外语的全能双语字幕工具 (baeckicjpfmgblnpnkdpfgbejobaeebe)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-06},
  url     = {https://extensiontracker.com/extension/baeckicjpfmgblnpnkdpfgbejobaeebe},
  urldate = {2026-11-08}
}

The data is free to reuse under CC BY 4.0.

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