> For the complete documentation index, see [llms.txt](https://manual.trancy.org/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.trancy.org/en/get-started.md). # Get started - [Use Extension](https://manual.trancy.org/en/get-started/use-extension.md) - [Bilingual subtitles](https://manual.trancy.org/en/get-started/use-extension/bilingual-subtitles.md): Trancy bilingual subtitles explained: watch with dual-language captions on 8 platforms, plus AI Subtitle 2.0 Whisper transcription for YouTube videos without captions. - [Theater mode](https://manual.trancy.org/en/get-started/use-extension/bilingual-subtitles/theater-mode.md): Theater Mode turns YouTube, Netflix, and other supported videos into a distraction-free player with bilingual subtitles. Learn how to turn it on and use it. - [Read mode](https://manual.trancy.org/en/get-started/use-extension/bilingual-subtitles/read-mode.md): Read Mode shrinks the video to one side and shows Trancy's bilingual subtitles as readable text. Learn how to turn it on and use it to study faster. - [Practice Mode](https://manual.trancy.org/en/get-started/use-extension/bilingual-subtitles/practice-mode.md): Practice Mode turns any video into active listening and speaking exercises — shadowing, Filling (fill-in-the-blank), and more — with AI grammar help and progress tracking. - [Export subtitle](https://manual.trancy.org/en/get-started/use-extension/bilingual-subtitles/export-subtitle.md): Export bilingual subtitles from any video as a PDF or CSV file. This free Trancy feature lets you save, print, and review subtitles and saved words offline. - [Keyboard shortcuts](https://manual.trancy.org/en/get-started/use-extension/keyboard-shortcuts.md): Trancy keyboard shortcuts for video learning: start Trancy, auto-pause, loop, switch modes, and adjust subtitles, with Mac and Windows keys side by side. - [Custom Translation Engine](https://manual.trancy.org/en/get-started/use-extension/custom-translation-engine.md): Trancy's translation engines: free Google and Microsoft, premium AI models like GPT, Claude, Gemini, and DeepSeek, plus bring-your-own-key custom engines. - [Use Learning Deck](https://manual.trancy.org/en/get-started/use-learning-deck.md) - [AITalk](https://manual.trancy.org/en/get-started/use-learning-deck/ai-talk.md): AITalk is Trancy's Premium AI speaking partner in the Learning Center: practice real-life dialogue scenarios by voice, with Microsoft speech scoring. - [How to use ChatGPT to create conversation scenarios](https://manual.trancy.org/en/get-started/use-learning-deck/ai-talk/how-to-use-chatgpt-to-create-conversation-scenarios.md): Learn how to write effective AITalk scene commands in Trancy so ChatGPT generates realistic, useful dialogue scenarios for your speaking practice. - [Watch Later](https://manual.trancy.org/en/get-started/use-learning-deck/watch-later.md): Save videos to Watch Later in the Trancy Learning Center so you can come back and study them anytime. Learn how to add, organize, and share saved videos. - [Practice Sentence](https://manual.trancy.org/en/get-started/use-learning-deck/practice-sentence.md): Practice Sentence is Trancy's saved-sentence library in the Learning Center. Save real sentences with context and review them anytime. Free plan saves up to 50 sentences. - [Practice Words](https://manual.trancy.org/en/get-started/use-learning-deck/practice-words.md): Practice Words is Trancy's vocabulary practice in the Learning Center. Save words with example sentences and review them with free Flashcard Practice. Free plan saves up to 100 words. - [Account settings](https://manual.trancy.org/en/get-started/use-learning-deck/account-settings.md): Manage your Trancy account settings: set your interface and native languages, choose your learning language, switch themes, and check your subscription and device sync. - [Download Mobile App](https://manual.trancy.org/en/get-started/download-mobile-app.md): Download the Trancy mobile app on iOS and Android for YouTube bilingual subtitles, AI speaking practice, vocabulary saving, and immersive language learning. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://manual.trancy.org/en/get-started.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.