🎬 YouTube transcription & translation to Google Docs with Gemini AI
⚡ 1,943 views · 🎬 Content Creation & Video
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Description
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,languageandenable_summary. - A Code node formats these inputs into
videoId,originalUrl,languageandenable_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
videoIdandlanguage. - 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_summaryflag 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 !
🔗 Nodes Used
HTTP Request, Webhook, Google Docs, Basic LLM Chain, Google Gemini Chat Model
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File