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🚀 YouTube comment sentiment analyzer with Google Sheets & OpenAI

Aayushman SharmaAayushman Sharma
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2/3/2026
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🚀 YouTube Comment Sentiment Analyzer with Google Sheets & OpenAI

Who Should Use This?

Influencers, marketers, and data teams who need instant insights into audience sentiment—without manual exports or scattered tools.

The Challenge

  • Manual exports from YouTube Studio
  • Time-consuming sentiment tagging
  • Data scattered across multiple platforms

Our workflow automates everything: from fetching comments to logging analysis—so you can focus on insights, not spreadsheets.

What You’ll Get

  1. Dynamic Input
    Read a list of YouTube URLs from your Google Sheet.
  2. Full Comment Harvest
    Pull all top-level comments (handles pagination 100/page).
  3. Deep Sentiment Scan
    Classify each comment as Positive, Neutral, or Negative using OpenAI.
  4. Smart Formatting
    Capture metadata (author, likes, timestamp) alongside sentiment.
  5. Seamless Storage
    Append or update rows in your Google Sheet—ready for reporting.

Easy Setup

  1. Prepare Google Sheet
    • Create a sheet with a video_urls column (full YouTube links).
    • Add and authorize a Google Sheets Oauth or service-account credential in n8n.
  2. Enable YouTube API
    • Activate Data API v3 in Google Cloud, grab an API key, and save as an HTTP credential in n8n.
  3. Configure OpenAI
    • Enter your API key under the “OpenAI Chat” credential in n8n.
  4. Import the Workflow
    • Paste the provided JSON into n8n.
  5. Run Manually
    • Use the Manual Trigger node to start fetching and analyzing comments on demand.

Customize to Your Needs

  • Filter Comments: Add an IF node to process only comments with specific keywords or minimum likes.
  • Automate Schedule: Swap the Manual Trigger for a Cron node if you later want periodic runs.
  • Extended Analysis: Swap sentiment classification for topic extraction, summarization, or translation by tweaking the LLM prompt.
  • Alternate Destinations: Replace Google Sheets with Airtable, Notion, or any database node.

Tags

YouTube Google Sheets OpenAI Sentiment Analysis n8n Manual Trigger

n8n Workflow: YouTube Comment Sentiment Analyzer with Google Sheets and OpenAI

This n8n workflow automates the process of analyzing sentiment for YouTube comments, leveraging OpenAI's language models, and then recording the results in a Google Sheet. It's designed to help you quickly understand the overall sentiment of comments on your YouTube videos or any specified channel.

What it does

This workflow simplifies and automates the following steps:

  1. Manual Trigger: Starts the workflow when manually executed.
  2. Google Sheets (Read): Reads data from a specified Google Sheet. This sheet is expected to contain YouTube comments that need sentiment analysis.
  3. Split Out: Processes each row from the Google Sheet individually, preparing them for sentiment analysis.
  4. Sentiment Analysis (OpenAI): Utilizes an OpenAI Chat Model to perform sentiment analysis on each comment, determining if the sentiment is positive, negative, or neutral.
  5. Edit Fields (Set): Formats the output from the sentiment analysis, likely extracting the sentiment label.
  6. If (Conditional Logic): Checks if the sentiment analysis was successful and returned a valid sentiment.
    • If TRUE (Sentiment Found):
      • Google Sheets (Append): Appends the original comment along with its analyzed sentiment to another specified Google Sheet.
    • If FALSE (No Sentiment Found):
      • No Operation, do nothing: This branch currently does nothing if sentiment analysis fails or doesn't return a clear result.
  7. HTTP Request: This node is present in the workflow but currently disconnected, suggesting it might be a placeholder for future integrations (e.g., sending notifications or updating another service).

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Google Account: A Google account with access to Google Sheets. You will need to configure Google Sheets credentials in n8n.
  • OpenAI API Key: An API key for OpenAI to use their language models for sentiment analysis. You will need to configure OpenAI Chat Model credentials in n8n.

Setup/Usage

  1. Import the workflow: Download the JSON provided and import it into your n8n instance.
  2. Configure Credentials:
    • Google Sheets: Set up your Google Sheets credentials in n8n. You'll need to specify the Spreadsheet ID and Sheet Name for both the input sheet (where comments are read from) and the output sheet (where results are written).
    • OpenAI Chat Model: Set up your OpenAI API Key credentials in n8n.
  3. Prepare your Google Sheet: Ensure you have a Google Sheet with comments that you want to analyze. The workflow expects to read these comments.
  4. Activate the workflow: Once configured, activate the workflow.
  5. Execute the workflow: Manually click 'Execute workflow' to run it. The workflow will read comments, analyze their sentiment, and then write the results to your designated output Google Sheet.

Note: The "HTTP Request" node is currently disconnected. If you intend to use it for further actions (e.g., sending notifications), you will need to connect it and configure its settings.

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