據 AlphaMoat 統計,截至 2026-09,Chrome 外掛 PolySub 使用者數為 61,環比 +41.9%,在全部 9,324 款 AI 瀏覽器外掛中排名第 5,073 位,在「辦公協作」分類(1,839 款)中排名第 1,048 位。
PolySub 是什麼
Dual subtitles with Instant and managed AI translation, free themes, transcripts, and live transcription. PolySub adds bilingual subtitles and translation tools directly to web videos.
Open a web page with an HTML5 video, choose your language, and use PolySub to show the original captions together with a translated line. On pages without a supported video or captions, PolySub stays idle.
What PolySub includes:
- Dual original and translated subtitles over the video
- Instant translation and managed PolySub AI translation
- Subtitle size, position, display, and theme controls
- Transcript view, search, export, and language-learning tools
- Six free themes plus private transcript corrections
- User-initiated Live Transcribe for videos without usable captions
- Optional account sync for settings, vocabulary, and entitlements
Privacy and control:
- The extension does not send general product or feature-use analytics
- Live Transcribe captures only the current tab audio after you start it
- PolySub does not sell data or use it for advertising
- You can disable PolySub on individual sites
展開其餘商店介紹▾
PolySub needs access to web pages because video players and caption tracks can appear on many different websites, including inside embedded frames. It uses that access only to detect the current video, read its captions, display the subtitle interface, and perform the subtitle or transcription action you request. It does not build or sell a browsing-history profile.
Basic instant translation works without payment. Some managed AI and Live Transcribe features require an account and available trial or Pro entitlement. Paid checkout is not open in this version.
Use only with content you are permitted to access. PolySub does not download video files or bypass subscriptions, access controls, or DRM.
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資料月份:2026-09 · 使用者數與評分來自 Chrome 應用商店公開資料,按月聚合更新。口徑說明見資料方法。