Summarize Gmail emails with Gemini and send an HTML action digest

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1. Workflow Overview

Who’s it for This template is for anyone who wants a quick, structured inbox review (founders, freelancers, support, operations) without reading every email. What it does Every 12 hours, the workfl...

Best for

Personal Productivity automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.noop, n8n-nodes-base.manualtrigger, n8n-nodes-base.scheduletrigger, n8n-nodes-base.datetime, n8n-nodes-base.gmail

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Summarize Gmail emails with Gemini and send an HTML action digest
Workflow name: Summarize Gmail emails with Gemini and send an HTML action digest

Who’s it for

This template is for anyone who wants a quick, structured inbox review (founders, freelancers, support, operations) without reading every email.

What it does

Every 12 hours, the workflow checks Gmail for emails received in the last 12 hours, then summarizes each email and extracts the next action plus a priority level (high/normal/low). It generates a direct Gmail “Open message” link for each item (using rfc822msgid) and sends one clean HTML digest email. If there are no new emails, it sends a short “No new emails” message instead.

How to set up

Connect your Gmail OAuth2 credentials in these nodes: Fetch Emails, Send Summary, No Emails.
Connect your Gemini credentials in Google Gemini Chat Model.
Update the recipient email in Send Summary and No Emails (sendTo), or replace it with a single variable in a Config/Set node.
Click Test workflow once, then activate the workflow.

Requirements

Gmail account + Gmail OAuth2 credentials in n8n.
Google Gemini API access.

Recommended model

Use Gemini 2.5 Flash for fast, reliable structured output. If the model is not available in your region/account, select the closest available Gemini model.

How to customize the workflow

Change the lookback window (12 hours → 24 hours, etc.) by editing the Date/Time calculation.
Adjust the AI prompt rules (priority criteria, action wording, output fields).
Modify the HTML digest design to match your branding.
Remove or change the Inbox-only filter if you want to include other labels (Sent/Other).

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 - Sticky Note

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

Block 2 - Sticky Note3

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

Block 3 - Sticky Note4

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

Block 4 - Sticky Note5

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

Block 5 - Sticky Note6

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

Block 6 - Sticky Note7

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

Block 7 - Sticky Note8

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

Block 8 - Google Gemini Chat Model

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

Block 9 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 10 - No Operation, do nothing

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

Block 11 - No Operation, do nothing1

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

Block 12 - When clicking ‘Test workflow’

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

Block 13 - Run every 12 hours

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 14 - Compute receivedAfter (now - 12h)

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

Block 15 - Fetch Gmail emails (receivedAfter)

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

Block 16 - Normalize email fields (From/To/snippet/messageId)

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 17 - Filter: Inbox only

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

Block 18 - If: any emails found?

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

Block 19 - Build Gmail “Open message” link

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 20 - AI: extract summary, action, priority

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 21 - Merge: link + AI result

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

Block 22 - Aggregate: build digest list

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

Block 23 - Send HTML digest email

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

Block 24 - Send “no new emails” email

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

Showing the first 24 of 26 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Summarize Gmail emails with Gemini and send an HTML action digest
Complexity	advanced
Nodes	26
Categories	Personal Productivity, AI Summarization
Author	Mohammed Aljer
Published	31 Jan 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13126/13126.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 Personal Productivity workflows AI Summarization workflows

Frequently asked questions

What does Summarize Gmail emails with Gemini and send an HTML action digest 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 Personal Productivity, AI Summarization use case.

Mohammed Aljer

1 workflow

Nodes

n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.lmchatgooglegemini @n8n/n8n-nodes-langchain.outputparserstructured n8n-nodes-base.noop n8n-nodes-base.manualtrigger n8n-nodes-base.scheduletrigger n8n-nodes-base.datetime n8n-nodes-base.gmail

Complexity

advanced

Published 31 Jan 2026

Likes 0

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Install path: /data/workflows/13126/13126.json

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Summarize Gmail emails with Gemini and send an HTML action digest

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

What it does

How to set up

Requirements

Recommended model

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note3

Block 3 - Sticky Note4

Block 4 - Sticky Note5

Block 5 - Sticky Note6

Block 6 - Sticky Note7

Block 7 - Sticky Note8

Block 8 - Google Gemini Chat Model

Block 9 - Structured Output Parser

Block 10 - No Operation, do nothing

Block 11 - No Operation, do nothing1

Block 12 - When clicking ‘Test workflow’

Block 13 - Run every 12 hours

Block 14 - Compute receivedAfter (now - 12h)

Block 15 - Fetch Gmail emails (receivedAfter)

Block 16 - Normalize email fields (From/To/snippet/messageId)

Block 17 - Filter: Inbox only

Block 18 - If: any emails found?

Block 19 - Build Gmail “Open message” link

Block 20 - AI: extract summary, action, priority

Block 21 - Merge: link + AI result

Block 22 - Aggregate: build digest list

Block 23 - Send HTML digest email

Block 24 - Send “no new emails” email

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