🔐🦙🤖 Private & local Ollama self-hosted AI assistant

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Important notice

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

1. Workflow Overview

Transform your local N8N instance into a powerful chat interface using any local & private Ollama model, with zero cloud dependencies ️. This workflow creates a structured chat experience that pro...

Best for

Personal Productivity automation workflows
AI Chatbot automation workflows
intermediate n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.chattrigger, @n8n/n8n-nodes-langchain.chainllm, @n8n/n8n-nodes-langchain.lmollama, n8n-nodes-base.stickynote, n8n-nodes-base.set

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: 🔐🦙🤖 Private & local Ollama self-hosted AI assistant
Workflow name: 🔐🦙🤖 Private & local Ollama self-hosted AI assistant

Transform your local N8N instance into a powerful chat interface using any local & private Ollama model, with zero cloud dependencies ☁️. This workflow creates a structured chat experience that processes messages locally through a language model chain and returns formatted responses 💬.

How it works 🔄

💭 Chat messages trigger the workflow
🧠 Messages are processed through Llama 3.2 via Ollama (or any other Ollama compatible model)
📊 Responses are formatted as structured JSON
⚡ Error handling ensures robust operation

Set up steps 🛠️

📥 Install N8N and Ollama
⚙️ Download Ollama 3.2 model (or other model)
🔑 Configure Ollama API credentials
✨ Import and activate workflow

This template provides a foundation for building AI-powered chat applications while maintaining full control over your data and infrastructure 🚀.

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 chat message received

Type / Role: @n8n/n8n-nodes-langchain.chatTrigger - chatTrigger
Config choices: Version 1.1

Block 2 - Basic LLM Chain

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.5

Block 3 - Ollama Model

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

Block 4 - Sticky Note

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

Block 5 - Sticky Note1

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

Block 6 - Sticky Note2

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

Block 7 - Sticky Note3

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

Block 8 - Sticky Note4

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

Block 9 - Sticky Note5

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

Block 10 - Sticky Note6

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

Block 11 - Structured Response

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

Block 12 - Error Response

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

Block 13 - Sticky Note7

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

Block 14 - JSON to Object

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

3. Summary Table

Workflow	🔐🦙🤖 Private & local Ollama self-hosted AI assistant
Complexity	intermediate
Nodes	14
Categories	Personal Productivity, AI Chatbot
Author	Joseph LePage
Published	15 Jan 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/2729/2729.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 Chatbot workflows

Frequently asked questions

What does 🔐🦙🤖 Private & local Ollama self-hosted AI assistant 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 Chatbot use case.

Joseph LePage

33 workflows

Nodes

@n8n/n8n-nodes-langchain.chattrigger @n8n/n8n-nodes-langchain.chainllm @n8n/n8n-nodes-langchain.lmollama n8n-nodes-base.stickynote n8n-nodes-base.set

Complexity

intermediate

Published 15 Jan 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/2729/2729.json

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🔐🦙🤖 Private & local Ollama self-hosted AI assistant

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works 🔄

Set up steps 🛠️

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When chat message received

Block 2 - Basic LLM Chain

Block 3 - Ollama Model

Block 4 - Sticky Note

Block 5 - Sticky Note1

Block 6 - Sticky Note2

Block 7 - Sticky Note3

Block 8 - Sticky Note4

Block 9 - Sticky Note5

Block 10 - Sticky Note6

Block 11 - Structured Response

Block 12 - Error Response

Block 13 - Sticky Note7

Block 14 - JSON to Object

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