Sanitize Google Drive markdown text with a local Ollama model

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1. Workflow Overview

How it works Downloads markdown documents from a Google Drive folder containing private information, uses the Ollama model to identify and extract sensitive data, and stores the sanitized text in a...

Best for

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

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.httprequest, n8n-nodes-base.splitout, n8n-nodes-base.filter, n8n-nodes-base.googledrive, n8n-nodes-base.extractfromfile, n8n-nodes-base.aggregate, n8n-nodes-base.code

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Sanitize Google Drive markdown text with a local Ollama model
Workflow name: Sanitize Google Drive markdown text with a local Ollama model

How it works

Downloads markdown documents from a Google Drive folder containing private information, uses the Ollama model to identify and extract sensitive data, and stores the sanitized text in a single combined markdown document.

Setup Steps

Google cloud OAuth credentials for accessing google drive.
A local Ollama model (currently using Ollama 3.1).
Local instance of N8N (for example, running in docker).

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 - return_files_in_folder

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 3 - split_files_item

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

Block 4 - select_markdown_files

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

Block 5 - download_drive_files

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

Block 6 - text_from_markdown

Type / Role: n8n-nodes-base.extractFromFile - extractFromFile
Config choices: Version 1.1

Block 7 - combine_all_text

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

Block 8 - chunk_text_for_local_llm

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

Block 9 - Basic LLM Chain

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.7

Block 10 - Ollama Model

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

Block 11 - parse_json_text_with_flag

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

Block 12 - join_text_chunks

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

Block 13 - create_cleaned_text_file

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

Block 14 - on_subfolder_created

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

Block 15 - log_text_with_pii_flag (optional)

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

Block 16 - Sticky Note1

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

Block 17 - Sticky Note2

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

Block 18 - Sticky Note3

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

Block 19 - Sticky Note4

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

Block 20 - Sticky Note5

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

Block 21 - combine_chunk_text

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

3. Summary Table

Workflow	Sanitize Google Drive markdown text with a local Ollama model
Complexity	advanced
Nodes	21
Categories	Document Extraction, AI Summarization
Author	Tobi Adeleke
Published	21 Jan 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/12889/12889.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 Sanitize Google Drive markdown text with a local Ollama model 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.

Tobi Adeleke

1 workflow

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.httprequest n8n-nodes-base.splitout n8n-nodes-base.filter n8n-nodes-base.googledrive n8n-nodes-base.extractfromfile n8n-nodes-base.aggregate n8n-nodes-base.code

Complexity

advanced

Published 21 Jan 2026

Likes 0

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Install path: /data/workflows/12889/12889.json

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Sanitize Google Drive markdown text with a local Ollama model

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - return_files_in_folder

Block 3 - split_files_item

Block 4 - select_markdown_files

Block 5 - download_drive_files

Block 6 - text_from_markdown

Block 7 - combine_all_text

Block 8 - chunk_text_for_local_llm

Block 9 - Basic LLM Chain

Block 10 - Ollama Model

Block 11 - parse_json_text_with_flag

Block 12 - join_text_chunks

Block 13 - create_cleaned_text_file

Block 14 - on_subfolder_created

Block 15 - log_text_with_pii_flag (optional)

Block 16 - Sticky Note1

Block 17 - Sticky Note2

Block 18 - Sticky Note3

Block 19 - Sticky Note4

Block 20 - Sticky Note5

Block 21 - combine_chunk_text

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