YouTube Transcription, Summarization & Translation to Google Docs
YouTube Transcription, Summarization & Translation to Google Docs This workflow automates the end-to-end process of converting YouTube videos into structured, multilingual written content. It transcribes the video's speech, optionally summarizes it, translates it into the chosen language and stores the result in a well-formatted Google Doc—ready for review, sharing or publication. Who’s It For Content creators and bloggers repurposing video content. Educators and researchers converting lectures into readable notes. Marketing teams localizing video material for international audiences. Students summarizing and translating study material. YouTube viewers who want written notes or blog-ready formats. How It Works A Webhook triggers the flow with inputs: youtube_url, language and enable_summary. A Code node formats these inputs into videoId, originalUrl, language and enable_summary. An HTTP Request node sends the video to Supadata API for full transcription. Another Code node combines all transcript segments into one body of text. The Basic LLM Chain node uses the Google Gemini Chat Model to summarize and translate the transcript if requested. A Google Docs node creates a new document with a title based on videoId and language. A final Google Docs node appends the processed summary and translation into the created document. How to Set Up Webhook Input: Send a POST request with three fields: youtube_url, language, enable_summary. Configure Supadata API: Add the HTTP URL and Authorization Header for transcription. Set up Gemini Chat Model: Use Google Vertex AI/Gemini integration in the Basic LLM Chain node. Create Google Docs Credentials: Connect your Google account using OAuth2. Document Naming Logic: You may adjust document titles using expressions (e.g., {{ videoId }} - {{ language }}). Requirements Supadata API key (or any video-to-text API). Google account with Google Docs access. Google Gemini access via n8n’s LLM integration. n8n Cloud or self-hosted instance. Basic understanding of webhook setup (or a form frontend). How to Customize Change LLM model:** Swap Gemini with GPT-4 or Claude in the LLM Chain node. Summarization toggle:** Use the enable_summary flag to control verbosity. Document layout:** Customize headings, font styles and content sections in Google Docs. Multiple languages:** Extend the workflow to translate into multiple languages and generate one document per language. Sharing options:** Add Gmail or Slack nodes to notify users once the document is generated. Add‑ons Notion Export:** Send the document summary directly into Notion using the Notion node. Slack Notification:** Notify your team with a link to the Google Doc using the Slack node. Google Sheets Logging:** Log video URLs, timestamps, and language used for auditing. n8n Forms Integration:** Allow users to submit video URLs and language via a hosted n8n form. Use Case Examples Repurposing Videos into Blogs:** Automatically convert YouTube podcasts into multilingual blog posts. Educational Notes:** Extract and translate lecture content into shareable study documents. International Marketing Teams:** Summarize and localize product explainer videos for different countries. Transcription Library:** Create a searchable database of translated transcripts from niche educational YouTube channels. Common Troubleshooting | Issue | Possible Cause | Solution | | ------------------------------- | ------------------------------------------ | ---------------------------------------------------------- | | Webhook not triggering | Incorrect webhook URL or POST format | Double-check payload and content-type (application/json) | | Transcription API fails | Invalid video ID or API key | Validate YouTube URL and Supadata API access | | Empty translation/summarization | Transcript was empty or prompt was weak | Ensure the video contains spoken content and refine prompt | | Google Doc not created | OAuth2 credentials not authorized properly | Reconnect Google Docs credentials in n8n | | Gemini LLM Chain fails | Model misconfigured or request malformed | Verify your model selection and payload structure | Need Help? Need help getting this set up or customizing it for your workflow? ✅ We can help you: Set up transcription and translation APIs Modify the summarization prompt Customize document layouts or automate sharing 👉 Contact WeblineIndia's automation experts !. An n8n automation workflow template by WeblineIndia.
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