Validate email font families from Gmail with Google Sheets

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1. Workflow Overview

How it works Load Expected Content + Expected Font Family from Google Sheets. Parse the email HTML to locate the matching content block. Use a JavaScript/HTML extraction node to read the actual fon...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.gmail, n8n-nodes-base.code, n8n-nodes-base.merge, n8n-nodes-base.stickynote, n8n-nodes-base.googlesheets

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Validate email font families from Gmail with Google Sheets
Workflow name: Validate email font families from Gmail with Google Sheets

How it works

Load Expected Content + Expected Font Family from Google Sheets.
Parse the email HTML to locate the matching content block.
Use a JavaScript/HTML extraction node to read the actual font-family applied to that content.
Merge expected and actual values. Compare Expected Font vs Actual Font to produce a Result (Match / Mismatch).
Log Actual Font + Result back into Google Sheets as part of the QA output.

Setup steps

Google Sheets Create a sheet with columns:SectionId, Content, ExpectedFontFamily, ActualFontFamily, Result. Populate SectionId + ExpectedContent for each content block you want to verify.
Email HTML Source Use a Gmail node to pull message HTML or use HTTP Request/Read Binary File + HTML/JS to supply the HTML.
Extraction Logic (JS/HTML) Use HTML parsing or a JS Function node to locate the HTML element containing the content string. From the matched element, extract the computed font-family. Clean, normalize, and standardize font names for accurate comparison. Return the extracted value as ActualFontFamily.
Merge & Compare Merge the Google Sheets expected records with the extracted actual font data using SectionId as the key. In the Code (JS) node, compare ExpectedFontFamily vs ActualFontFamily and set Result to Match if equal (or meets your rule), otherwise Mismatch.
Write back Use Google Sheets to update ActualFontFamily and Result for each row.

Requirements

n8n with access to: Google Sheets, Code/HTML, and (optionally) Gmail nodes.
A Google Sheets document with at least these columns:

SectionId (or Key) Content ExpectedFontFamily ActualFontFamily (output) Result (output: Match / Mismatch)

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 - When clicking ‘Execute workflow’

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

Block 2 - Get many messages

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.2

Block 3 - Extract Content Font Family from HTML

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

Block 4 - Combine Font Inputs

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 5 - Extract Actual Font Family and Results

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

Block 6 - Sticky Note

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

Block 7 - Sticky Note1

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

Block 8 - Load Expected Content and Font Family

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 9 - Log Font Checks to Excel

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

3. Summary Table

Workflow	Validate email font families from Gmail with Google Sheets
Complexity	intermediate
Nodes	9
Categories	Document Extraction, AI Summarization
Author	Sasikala Jayamani
Published	21 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13566/13566.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 Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does Validate email font families from Gmail with Google Sheets 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 Document Extraction, AI Summarization use case.

Sasikala Jayamani

3 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.gmail n8n-nodes-base.code n8n-nodes-base.merge n8n-nodes-base.stickynote n8n-nodes-base.googlesheets

Complexity

intermediate

Published 21 Feb 2026

Likes 0

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Install path: /data/workflows/13566/13566.json

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Validate email font families from Gmail with Google Sheets

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Setup steps

Requirements

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Execute workflow’

Block 2 - Get many messages

Block 3 - Extract Content Font Family from HTML

Block 4 - Combine Font Inputs

Block 5 - Extract Actual Font Family and Results

Block 6 - Sticky Note

Block 7 - Sticky Note1

Block 8 - Load Expected Content and Font Family

Block 9 - Log Font Checks to Excel

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