AI 产品解读YouTube bilingual (dual) subtitle display - simultaneously shows subtitles in two languages on YouTube videos with customizable styles
Language learners watching YouTube videos need to see subtitles in both their native language and the target language simultaneously, but YouTube only supports showing one subtitle track at a time
User installs extension, navigates to any YouTube video with available subtitles. The extension injects a content script that fetches translated subtitles and displays both the original and translated subtitles simultaneously on screen. Settings (style, language, mode) are accessible directly from the subtitle area on the video player.
Simultaneous display of two language subtitle tracks on YouTube videosCustomizable subtitle styles (font, font size, color, background, stroke)Adjustable subtitle spacing and direction (column layout)Support for bilingual, translated-only, and original-only display modesTranslation language selectionRTL language layout support
- 目标用户
- Language learners watching YouTube content / Users who want to understand videos in foreign languages / Multilingual YouTube viewers
- The content.js file is a large minified bundle (422KB) making line-by-line analysis difficult, but all grep searches across all files confirmed no login/payment logic exists
- The 'token' keyword hits in content.js are from CSS/markdown parsing libraries (not authentication tokens)
付费分析未识别到付费功能
No evidence of paid features. Grep for premium, subscription, payment (real), stripe, billing, purchase, license, upgrade, donate, paywall, and unlock all returned zero meaningful matches. The 'pro' keyword hits are all false positives from non-English localized text (e.g., 'problèmes' in French, 'problemen' in Dutch) where 'pro' is a substring of the word 'problem'. The extension provides all its features (dual subtitles, style customization, font/size/color/spacing settings) without any gating or upgrade prompts.
- 置信度
- 95
- 支付平台
- --
- 来源
- AI / 高
- 需要登录
- 否
- 登录理由
- No login, account, sign-in, sign-up, register, or authentication keywords found anywhere in the 145 text files. The extension operates entirely locally via chrome.storage.sync/local for settings. It injects content scripts into YouTube pages and modifies subtitle display without requiring any authentication to an external service or extension account.
2025 12 11,突然用不了了,两种语音都不显示,希望赶快修复
When I hover the mouse cursor over it, it keeps bobbing up and down. I can't configure it because it jumps up when I point the mouse cursor at it; then when I move the mouse cursor up to point at it, it moves down again, as if it's trying to avoid my mouse cursor.
It blocks my subtitles from appearing at all, let alone dual subs.
It works nicely. The UI customization feature is a plus along with the auto translation. Sometimes there are some minor bugs but other than that it's perfect. Still, It would be nice if there could be shown two original subtitles provided by the youtube channel.
Great app. It works well. I tried another extension on here but the subs kept moving. These stay where you put them and editing font size and backgrounds is super easy. Thank you!
这个插件是真的害人,我居然用了2年,暂时关了,看了一下youtube的自动翻译,比这个软件的逆天机翻精准几倍
エラーが表示され動作しなかった。
2025/11/12 突然无法使用了,报错Error:429
Dual subtitles dont work on Brave - Error 429
Hard to use, I dont understand why it doesnt work. I only made it work once or twice. You need to select a language from the buttons, but why isnt there two languages, so that I can select the language or something?