Dualsub - Dual Subtitles for YouTube

Display dual subtitles, use machine translation and speech recognition to generate subtitles.

Dualsub - Display Dual Subtitles on YouTube

Dualsub - Dual Subtitles for YouTube is a versatile Firefox add-on that lets users display dual subtitles on YouTube videos. It supports over 10 video websites, including Bilibili, Coursera, and Udemy. Users can choose between human-translated and machine-translated subtitles, enhancing their language learning experience. It is compatible with various desktop and mobile browsers, making it accessible for a wide audience. For more details, visit https://www.dualsub.xyz/.
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View on Firefox Browser Add-ons

Add-on stats

Users: 4,972
-64
Rating: 4.39
(102)
1 new ratings
Version: 2.51.2 (Last updated: 2024-12-20)
Creation date: 2018-10-03
Weekly download count: 171
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood:
Moderate risk likelihood
Manifest version: 3
Permissions:
  • storage
Host permissions:
  • https://api.dualsub.xyz/*
Size: 42.89K
URLs: Website

Ranking

# 1,159 ▼ 5
Other rankings
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Other platforms

Dualsub - Dual Subtitles for YouTube (v2.51.1)
3.67 (425) 100,000
Dual iPlug S (v1.0.19)
3.02 (145) 64,711
Dualsub - Dual Subtitles for YouTube (v2.51.2)
4.20 (40) 45,128
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Add-on summary

Analyze keywords

Use Dualsub to display dual subtitles on YouTube.

Quick Start

Perhaps your requirement is simple: to have YouTube's native subtitles display two languages.

For example, to display subtitles with Chinese on top and English at the bottom:

  1. Open a YouTube video page, and turn on YouTube's native subtitles.
  2. Open the Dualsub popup page, and switch to the Native Mode tab.
  3. On the row 1, the Subtitle File menu, select Chinese.
  4. On the row 2, the Subtitle File menu, select English.

You can select to use human-translated subtitles, or machine-translated subtitles.

See more

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Works well with mobile YouTube
  • Useful for learning languages
  • Automatically adds subtitles in target language
  • Good language support and functionality
Cons
  • Requires manual language setting every time when changing videos
  • Occasional server response issues
  • Overlap of hard and soft subtitles in certain scenarios
Most mentioned
  • Effective for language learning
  • Need for a better tutorial or guidance
  • Confusion between Simple and Standard mode
User reviews
by osobaer, 2024-12-21
Good
by Firefox user 18725287, 2024-12-10
Works well with mobile youtube. I can translate non english languages to my native language, which somehow even works a lot better than translating to english. And with last update this extension became a lot better as it now remembers language setting (before it had to be manually set every time when changing video). Very good!
by Firefox user 18616156, 2024-12-06
View all user reviews

Add-on safety

Risk impact

Dualsub - Dual Subtitles for YouTube requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

Dualsub - Dual Subtitles for YouTube is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details