Sentiment analytics visualizer

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Sentiment Analyzer Google Sheets → OpenAI GPT 4o → QuickChart → Gmail What this workflow does 1. Fetches customer reviews from a Google Sheet. 2. Classifies each review as Positive , Neutral ...

Best for

Market Research automation workflows
AI Summarization automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.splitinbatches, @n8n/n8n-nodes-langchain.sentimentanalysis, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.manualtrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.code, n8n-nodes-base.quickchart

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Franz.

Original n8n.io source

1.1 Workflow description

Title: Sentiment analytics visualizer
Workflow name: Sentiment analytics visualizer

🧠 Sentiment Analyzer

Google Sheets → OpenAI GPT-4o → QuickChart → Gmail

🚀 What this workflow does

Fetches customer reviews from a Google Sheet.
Classifies each review as Positive, Neutral or Negative with GPT-4o-mini.
Writes the sentiment back to your sheet.
Builds a doughnut chart summarising the totals.
Emails the chart to your chosen recipient so the whole team stays in the loop.

Perfect for support teams, product managers or anyone who wants a zero-code mood ring for their users’ feedback.

🗺️ Node-by-node tour

🔩 Node	💡 Purpose
Manual Trigger	Lets you test the workflow on demand.
Select Google Sheet	Points to the spreadsheet that holds your reviews.
Loop Over Items	Feeds each row through the analysis routine.
Sentiment Analysis (LangChain)	Calls GPT-4o-mini and returns only the sentiment category.
Update Google Sheet	Writes the new Sentiment value into column C.
Read Data from Google Sheet	Pulls the full sheet again to create a summary.
Extract Number of Answers per Sentiment (Code node)	Tallies up how many reviews fall into each category.
Generate QuickChart	Creates a doughnut (or pie) chart as a PNG.
Send Gmail with Sentiment Chart	Fires the chart off to your inbox.
(Sticky Notes)	Friendly setup tips scattered around the canvas.

🛠️ Setup checklist

✅ Step	Where
Connect Google Sheets → paste your Spreadsheet ID & choose the correct sheet.	All Google Sheets nodes
Add OpenAI credentials (sk-… key).	Sentiment Analysis node
Configure Gmail OAuth2 + recipient address.	Gmail node
Match your sheet columns → “Review title”, “Review text”, empty “Sentiment”.	Google Sheet itself
(Optional) Switch to gpt-4o for maximum accuracy.	Sentiment Analysis “Model” param

🏃‍♂️ How to run

Drop a few sample reviews into the sheet.
Click “Test workflow” on the Manual Trigger.
Watch each row march through → sentiment appears in column C.
After all rows finish, check your inbox for a fresh chart. ✔️

✨ Ideas for next level

Schedule the trigger (Cron) to auto-process new reviews daily.
Feed the counts to Slack or Discord instead of email.
Add a second GPT call to generate a short summary for each review.

Happy automating! 🎉

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - 📋 Setup Instructions

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - 🔧 Configure Google Sheets

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - 🤖 Configure OpenAI

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - 📧 Configure Gmail

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Loop Over Items

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 6 - Sentiment Analysis

Type / Role: @n8n/n8n-nodes-langchain.sentimentAnalysis - sentimentAnalysis
Config choices: Version 1

Block 7 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 8 - When clicking 'Test workflow'

Type / Role: n8n-nodes-base.manualTrigger - manualTrigger
Config choices: Version 1

Block 9 - Select Google Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 10 - Update Google Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 11 - Read Data from Google Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 12 - Extract Number of Answers per Sentiment

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 13 - Generate QuickChart

Type / Role: n8n-nodes-base.quickChart - quickChart
Config choices: Version 1

Block 14 - Send Gmail with Sentiment Chart

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

3. Summary Table

Workflow	Sentiment analytics visualizer
Complexity	intermediate
Nodes	14
Categories	Market Research, AI Summarization
Author	Franz
Published	24 Jun 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/5204/5204.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Market Research workflows AI Summarization workflows

Frequently asked questions

What does Sentiment analytics visualizer do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Market Research, AI Summarization use case.

Franz

4 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.splitinbatches @n8n/n8n-nodes-langchain.sentimentanalysis @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.manualtrigger n8n-nodes-base.googlesheets n8n-nodes-base.code n8n-nodes-base.quickchart

Complexity

intermediate

Published 24 Jun 2025

Likes 0

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Install path: /data/workflows/5204/5204.json

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Sentiment analytics visualizer

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

🧠 Sentiment Analyzer

🚀 What this workflow does

🗺️ Node-by-node tour

🛠️ Setup checklist

🏃‍♂️ How to run

✨ Ideas for next level

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - 📋 Setup Instructions

Block 2 - 🔧 Configure Google Sheets

Block 3 - 🤖 Configure OpenAI

Block 4 - 📧 Configure Gmail

Block 5 - Loop Over Items

Block 6 - Sentiment Analysis

Block 7 - OpenAI Chat Model

Block 8 - When clicking 'Test workflow'

Block 9 - Select Google Sheet

Block 10 - Update Google Sheet

Block 11 - Read Data from Google Sheet

Block 12 - Extract Number of Answers per Sentiment

Block 13 - Generate QuickChart

Block 14 - Send Gmail with Sentiment Chart

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions