
Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
InterSub records 71,644 monthly visits with -11.2% month-over-month growth and Freemium, Free Trial pricing. lingo link records 0 monthly visits with — growth and Freemium pricing.

AI-powered word lookup, translation, and vocabulary bookmarking while you read online
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | intersub.cc | chromewebstore.google.com |
| Pricing Model | Freemium, Free Trial | Freemium |
| Monthly Visits | 71.64K (71,644) | 0 (0) |
| MoM Traffic Delta | -9.04K (-11.2%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (15.2%) | 🌐 Global (—) |
| Direct Visits / mo | 31.96K | 0 |
| User Rating | 4.2 | 1.8 |
| Supported Platforms | Website | Browser Extension |
Learn languages with dual subtitles and a hover dictionary in any video
Watch with the subtitle of the language you are learning and your native language stacked, one line above the other, directly inside the video player.
Hover any subtitle word and the video pauses while a pop-up shows an AI-generated definition plus a translation of the surrounding context.
Every word you look up lands in your Wordbook with its original context, so you build a personal list from scenes you actually watched.
If an episode has no subtitles in your language, InterSub translates them on the fly with AI and shows the translation as the second line.

AI-powered word lookup, translation, and vocabulary bookmarking while you read online
Select a word on any page and get concise and Collins-style dictionary entries without leaving the article you are reading.
Translate selected text with classic engines (Youdao, Google) or route it through large language models like OpenAI, Gemini, Moonshot, and DeepSeek using your own API key.
Collect unfamiliar words into a personal list and attach your own notes so you can review context and meaning later.
Words you have already saved reappear marked on pages you visit, so repeated exposure to the same vocabulary reinforces memory.

Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
AI bilingual translator for web pages, PDFs, and images
AI bilingual translator for web pages, PDFs, and images
SpecialistFree bilingual browser extension that translates any page with the AI engine you choose
SpecialistFree bilingual browser extension that translates any page with the AI engine you choose
AI dubbing and bilingual subtitles for any YouTube video
AI dubbing and bilingual subtitles for any YouTube video

Browser translation, dictionary, and AI writing assistant
Browser translation, dictionary, and AI writing assistant
Bilingual subtitles and translated pages wherever you read or watch
Bilingual subtitles and translated pages wherever you read or watch
Turn any webpage into bilingual reading in one click
Turn any webpage into bilingual reading in one click
Learn a language from the videos you already watch
Learn a language from the videos you already watch
AI language learning built into every page you read
AI language learning built into every page you read
Learn languages from real videos with word-by-word subtitles
Learn languages from real videos with word-by-word subtitles