General purpose subtitle renderer

Dualsub promo image
What is Dualsub?

Dualsub is a Chrome extension by Dualsub Studio. This extension has 96,706 weekly active users, an average user rating of 3.87, and is most similar to YouTube™ dual subtitles and NflxMultiSubs (Netflix Multi. Subtitles). The latest version, 2.5.5, was updated a month ago.

Stats date:
Install link: Chrome Web Store
Version: 2.5.5 (Last updated: 2023-01-09)
Creation date: 2020-07-04
Manifest version: 3
  • storage
Host permissions:
  • https://api.dualsub.xyz/*
Featured: No
Size: 135.17K
Email: Click to see
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Found a bug?

Other platforms

Dualsub (v1.86.6)
75 2,722
Dualsub (v2.5.3)
30 17,401
With this extension, you can add more subtitle features to video-on-demand websites like YouTube.

Highlight Features:

* Display more than two subtitle languages at the same time, supports machine translation.
* Built-in foreign language learning tools, supports add annotations for Chinese or Japanese vocabulary.
* Various style options, supports position adjustment, text stroke, vocabulary highlighting.

Supported Websites:

* YouTube
* Netflix
* Disney Plus
* Hulu
* (More than 20 websites)
See more
Risk impact

Dualsub requires some risky permissions and may not be safe to use. Exercise caution when installing this extension. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

Dualsub has earned a fairly good reputation and likely can be trusted.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
works on primevideo
by mina maher mina maher, 2023-01-28

by 高鈺芳 高鈺芳, 2023-01-25

by Anson Anson, 2023-01-24
View all user reviews
Similar extensions

Here are some Chrome extensions that are similar to Dualsub:

YouTube™ dual subtitles YouTube™ dual subtitles
User count: 173,848
Rating: 508
Automatically switch to local language, bilingual subtitles, subtitle download, subtitle dubbing, custom subtitle style.
NflxMultiSubs (Netflix Multi. Subtitles) NflxMultiSubs (Netflix Multi. Subtitles)
Publisher: nflxmultisubs
User count: 390,717
Rating: 767
Bilingual Subtitles & Enhanced Experiences for Netflix
SubTrans - General Subtitle Translator Suite SubTrans - General Subtitle Translator Suite
User count: 6,585
Rating: 27
General Subtitle Translator for Multiple Sites. Displays bilingual subtitles. Supported sites are actively increasing.

The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "minimum_chrome_version": "107",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "version": "2.5.5",
  "permissions": [
  "host_permissions": [
  "icons": {