Scrape any web page into structured JSON data with ScrapeNinja and AI

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Important notice

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

1. Workflow Overview

Disclaimer: This template only works on self hosted for now, as it uses a community node. Use Case Web scrapers often break due to web page layout changes. This workflow attempts to mitigate this p...

Best for

Engineering automation workflows
Multimodal AI automation workflows
intermediate n8n builders looking for reusable templates

Tools used

custom.scrapeninja, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.manualtrigger, @n8n/n8n-nodes-langchain.chainllm

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Scrape any web page into structured JSON data with ScrapeNinja and AI
Workflow name: Scrape any web page into structured JSON data with ScrapeNinja and AI

Disclaimer: This template only works on self-hosted for now, as it uses a community node.

Use Case

Web scrapers often break due to web page layout changes. This workflow attempts to mitigate this problem by auto-generating web scraping data extractor code via LLM.

How It Works

This workflow leverages ScrapeNinja n8n community node to:

scrape webpage HTML,
feed it into LLM (Google Gemini) and ask to write a JS extractor function code, then it
executes the written JS extractor against scraped HTML to extract useful data from webpage (the code is safely executed in a sandbox)

Installation

To install ScrapeNinja n8n node, in your self-hosted instance, go to Settings -> Community nodes, enter "n8n-nodes-scrapeninja", and install.

Make sure you are using at least v0.3.0.

See this in action: https://www.linkedin.com/feed/update/urn:li:activity:7289659870935490560/

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 - ScrapeNinja

Type / Role: CUSTOM.scrapeNinja - scrapeNinja
Config choices: Version 1

Block 2 - Google Gemini Chat Model

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

Block 3 - Generate custom web scraper

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

Block 4 - Cleanup HTML

Type / Role: CUSTOM.scrapeNinja - scrapeNinja
Config choices: Version 1

Block 5 - Generate JS eval code via LLM

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

Block 6 - Eval generated code to extract data

Type / Role: CUSTOM.scrapeNinja - scrapeNinja
Config choices: Version 1

3. Summary Table

Workflow	Scrape any web page into structured JSON data with ScrapeNinja and AI
Complexity	intermediate
Nodes	6
Categories	Engineering, Multimodal AI
Author	Anthony
Published	28 Jan 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/2812/2812.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 Engineering workflows Multimodal AI workflows

Frequently asked questions

What does Scrape any web page into structured JSON data with ScrapeNinja and AI 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 Engineering, Multimodal AI use case.

Anthony

5 workflows

Nodes

custom.scrapeninja @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.manualtrigger @n8n/n8n-nodes-langchain.chainllm

Complexity

intermediate

Published 28 Jan 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/2812/2812.json

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Scrape any web page into structured JSON data with ScrapeNinja and AI

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Use Case

How It Works

Installation

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - ScrapeNinja

Block 2 - Google Gemini Chat Model

Block 3 - Generate custom web scraper

Block 4 - Cleanup HTML

Block 5 - Generate JS eval code via LLM

Block 6 - Eval generated code to extract data

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