GlotDojo AI

freemium

GlotDojo is a free AI translator and language learning tool with dual subtitles, pop-up dictionary, and advanced Chinese & Japanese support. Works with Netflix, YouTube, Amazon, and more.

Productivity

Online Learning Platforms

Study Assistants

About

GlotDojo is a versatile AI-powered translator and language learning tool built for real-world immersion. Designed as a browser extension with companion mobile apps, it integrates seamlessly with popular platforms including Netflix, YouTube, Amazon Prime, WeTV, iQiyi, Viki, Facebook, Twitter, Coursera, and Udemy — letting users learn their target language through content they already enjoy. The extension provides a friction-free pop-up dictionary that works across webpages and videos, allowing instant word lookups without interrupting the viewing experience. Dual subtitles mode displays both the original and translated subtitles simultaneously, so learners can absorb vocabulary in context. Advanced video shortcuts let users adjust playback speed, repeat sentences, and use auto-pause to test comprehension before revealing subtitles. For Chinese and Japanese learners, GlotDojo offers a specialized dictionary featuring pinyin/hiragana display, kanji stroke order, character breakdown, compound word detection, and grammar and memorization tips — all in one place. Favorite sentences and scenes can be saved for later review, helping reinforce vocabulary retention. The tool is designed to fit into daily routines without requiring dedicated study sessions. With over 200,000 weekly users, a 2,000+ five-star Chrome Store rating, and a dedicated support team, GlotDojo is a trusted companion for self-directed language learners of all levels.

Key Features

Dual Subtitles Mode: Displays both native and translated subtitles simultaneously on Netflix, YouTube, Amazon, Viki, and other streaming platforms.
Pop-Up Dictionary: Instantly translates any word or phrase on videos and webpages with a lightweight, non-intrusive overlay.
Advanced Chinese & Japanese Dictionary: Offers pinyin/hiragana display, stroke order, character breakdown, compound word detection, and grammar tips tailored for CJK learners.
Video Shortcut Controls: Lets users adjust playback speed, skip to previous/next sentence, auto-pause for comprehension checks, and repeat subtitle lines.
Sentence & Scene Saving: Save favorite sentences or video clips to a personal collection for vocabulary review and long-term retention.

Use Cases

Watching foreign-language films on Netflix with dual subtitles to learn vocabulary in context
Learning Chinese or Japanese with detailed character breakdowns, stroke order, and grammar tips
Browsing news sites, social media, or YouTube in a target language with instant pop-up translations
Building everyday vocabulary passively by immersing in online content during regular browsing sessions
Using auto-pause and subtitle guessing features to actively test comprehension while watching videos

Pros

Free & Ad-Free: Core features are completely free to use with no advertisements, lowering the barrier for casual and serious learners alike.
Wide Platform Compatibility: Supports 200+ websites including Netflix, YouTube, Amazon Prime, Facebook, Twitter, Coursera, and Udemy out of the box.
Specialized CJK Support: The advanced dictionary for Chinese and Japanese learners is far more detailed than typical translation tools, covering grammar, strokes, and phonetics.
Learn Without Disrupting Daily Habits: Integrates into existing browsing and streaming routines, so users can learn passively without committing to structured lessons.

Cons

Primarily Chrome-Based: The full feature set is only available as a Chrome extension; the mobile app and web app offer more limited functionality.
Premium Features Require Upgrade: Advanced add-ons for Chinese and Japanese, as well as some premium learning features, are locked behind a paid plan.
Web App Still In Progress: The standalone web application is not yet released, limiting non-Chrome browser users to a reduced experience.

Frequently Asked Questions

Yes, GlotDojo is free to install and use with no ads. A Premium tier is available for access to advanced add-ons such as the specialized Chinese and Japanese dictionaries.

GlotDojo supports Netflix, YouTube, Amazon Prime Video, WeTV, iQiyi, Viki, and many other streaming services, as well as general websites like Facebook, Twitter, Coursera, and Udemy.

GlotDojo supports translation across a wide range of languages. It offers especially deep functionality for Chinese and Japanese learners, including pinyin, hiragana, stroke order, and grammar tips.

When enabled, dual subtitles mode overlays both the original-language subtitles and a translated version on screen at the same time, helping learners connect words to their meanings in real context.

Yes, GlotDojo has a mobile app available. A web app is also currently in development for broader cross-browser and cross-device support.