According to AlphaMoat, as of 2026-09, the Chrome extension RootblySub has 113 users (+37.8% MoM), rated 5 (1 reviews) — ranked #4,013 of 9,324 AI browser extensions, and #178 of 333 in Audio.
What is RootblySub
Generate AI subtitles for any YouTube video in your language. Watch with subtitles in Korean, English, Japanese, Spanish & 15+ RootblySub – AI Subtitle Translation for YouTube
RootblySub is a subtitle translation tool that helps you understand YouTube videos more easily. Simply enter a YouTube video URL and the extension will automatically generate subtitles and translate them into your preferred language.
It is especially useful for foreign-language content such as interviews, lectures, reviews, and educational videos where quickly understanding the content is important. Even if a video does not have subtitles or the original language is difficult to follow, RootblySub makes it much easier to watch and understand.
With no complicated setup required, you can instantly view translated subtitles for any video you want to learn from or explore.
Extension profile
User Growth Trend
Popular in Audio
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.