This workflow follows the Agent → Execute Workflow Trigger recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "Tools - Report Generator",
"nodes": [
{
"parameters": {
"operation": "toBinary",
"sourceProperty": "base64",
"options": {
"fileName": "={{$('Start').item.json.filename + \".html\"}}",
"mimeType": "={{ $json.mimetype }}"
}
},
"type": "n8n-nodes-base.convertToFile",
"typeVersion": 1.1,
"position": [
1000,
-80
],
"id": "6041b412-c030-4e83-86ab-3e8b68988398",
"name": "convert_to_html_file"
},
{
"parameters": {
"jsCode": "return [\n {\n json: {\n base64: Buffer.from($input.all()[0].json.html).toString('base64'),\n mimetype: \"text/html\"\n }\n }\n];\n"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
780,
-80
],
"id": "04d67343-1344-48ca-a599-918e5b7688d9",
"name": "convert_to_base64"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {
"temperature": 0
}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
-80,
120
],
"id": "fb451a32-3a49-4247-91f7-2f52db48d040",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "=Convert the following JSON data to HTML format:\n\n{{ JSON.stringify($json.content) }}\n# TRANSFORMATION REQUIREMENTS\n\n**Structure Conversion:**\n- Transform each JSON key into a semantic HTML section with appropriate heading level\n- Maintain logical hierarchy: top-level keys become h2, nested keys become h3, etc.\n- Preserve the original data organization and relationships\n\n**Content Formatting:**\n- Text strings \u2192 <p> paragraphs (split on line breaks if needed)\n- Arrays \u2192 <ul> unordered lists with <li> items\n- Objects \u2192 Nested <section> elements with subheadings\n- URLs \u2192 Proper <a> tags with href attributes\n- Important terms \u2192 <strong> tags for emphasis\n\n**HTML Requirements:**\n- Wrap everything in <article aria-label=\"Report Content\">\n- Include <header> with <h1> for the main title\n- Use <section aria-labelledby=\"id\"> for each major section\n- Generate unique kebab-case IDs for all headings\n- Ensure proper heading hierarchy (h1 \u2192 h2 \u2192 h3, no skipping)\n\n**Output Specifications:**\n- Return ONLY the article content (no DOCTYPE, html, head, body tags)\n- No CSS styling or class attributes\n- Valid HTML5 that can be directly inserted into a template\n- Proper HTML entity encoding for special characters\n\nGenerate the complete HTML article content now.\n",
"options": {
"systemMessage": "=You are a specialized JSON-to-HTML converter that transforms structured data into semantic HTML article content. Your output must be consistent, valid, and directly insertable into web templates.\n\n# PRIMARY FUNCTION\nTransform JSON data into clean HTML wrapped in an <article> tag with proper semantic structure, accessibility features, and consistent formatting.\n\n# STRICT OUTPUT REQUIREMENTS\n- Output ONLY content between <article> and </article> tags\n- NO DOCTYPE, html, head, body, or any wrapper tags\n- NO CSS styles or class attributes\n- NO JavaScript or script tags\n- Must be valid HTML5 that passes validation\n\n# JSON INTERPRETATION RULES\n1. **Object Keys** \u2192 Section headings (h2, h3, h4 based on nesting depth)\n2. **String Values** \u2192 Paragraph content in <p> tags\n3. **Arrays** \u2192 Unordered lists (<ul><li>) unless context suggests ordered lists\n4. **Nested Objects** \u2192 Subsections with appropriate heading hierarchy\n5. **URLs** \u2192 Convert to proper <a> tags with href and descriptive text\n6. **Empty/Null Values** \u2192 Skip entirely, do not create empty sections\n\n# HTML STRUCTURE HIERARCHY\n```\n<article aria-label=\"Report Content\">\n <header>\n <h1>[Main Title]</h1>\n </header>\n \n <section aria-labelledby=\"id-1\">\n <h2 id=\"id-1\">[Section Title]</h2>\n <section aria-labelledby=\"id-1-1\">\n <h3 id=\"id-1-1\">[Subsection Title]</h3>\n <p>[Content]</p>\n <ul>\n <li>[List item]</li>\n </ul>\n </section>\n </section>\n</article>\n```\n\n# MANDATORY FORMATTING RULES\n1. **IDs**: Generate kebab-case IDs for all headings (h1-h6)\n2. **ARIA**: Include aria-labelledby for all sections referencing heading IDs\n3. **Text Processing**: \n - Escape HTML entities (&, <, >, ")\n - Convert line breaks to separate <p> tags\n - Wrap standalone text in <p> tags\n4. **Links**: Auto-detect URLs and wrap in <a href=\"url\" title=\"descriptive-title\">text</a>\n5. **Emphasis**: Use <strong> for important terms, <em> for emphasis\n\n# ERROR HANDLING\n- If JSON is malformed: Output error message in <p> tag within article\n- If empty JSON: Output <article><p>No content available</p></article>\n- Skip any keys with null/undefined values\n- Handle special characters properly with HTML entities\n\n# CONSISTENCY REQUIREMENTS\n- Always start with <article aria-label=\"Report Content\">\n- Always include <header> with <h1> for main title\n- Use consistent ID naming: section-1, section-2, subsection-1-1, etc.\n- Maintain proper heading hierarchy (don't skip levels)\n- End with closing </article> tag\n\nProcess the JSON systematically and output only the HTML article content.\n"
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 2,
"position": [
-20,
-80
],
"id": "4f39c987-d009-4f6f-9a2e-d93a6a23e0f2",
"name": "Formatter",
"executeOnce": true
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "654e6696-7705-4021-87df-1edf19bbe439",
"name": "html",
"value": "={{ $json.html }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
560,
-80
],
"id": "d61c1ee0-6d2e-491f-86da-99901e029d0d",
"name": "get_html_output",
"notes": ".replace('html', '').replaceAll(\"```\", '').replaceAll(\"\\n\", \"\") "
},
{
"parameters": {
"html": "<!DOCTYPE html>\n<html lang=\"de\">\n<head>\n <meta charset=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n <title>{{ $('Start').item.json.title }}</title>\n <style>\n * {\n box-sizing: border-box;\n margin: 0;\n padding: 0;\n }\n\n body {\n font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;\n line-height: 1.7;\n color: #1a1a1a;\n background-color: #fafafa;\n font-size: 16px;\n font-weight: 400;\n }\n\n article {\n max-width: 800px;\n margin: 40px auto;\n background: #ffffff;\n border: 1px solid #e5e5e5;\n border-radius: 8px;\n overflow: hidden;\n }\n\n header {\n background: #ffffff;\n border-bottom: 1px solid #e5e5e5;\n padding: 48px 40px 32px 40px;\n text-align: center;\n }\n\n h1 {\n font-size: 32px;\n font-weight: 600;\n color: #0a0a0a;\n letter-spacing: -0.02em;\n margin: 0;\n }\n\n h2 {\n font-size: 20px;\n font-weight: 600;\n color: #0a0a0a;\n margin: 48px 0 16px 0;\n padding: 0 40px;\n letter-spacing: -0.01em;\n }\n\n h2:first-of-type {\n margin-top: 32px;\n }\n\n h3 {\n font-size: 16px;\n font-weight: 600;\n color: #333333;\n margin: 32px 0 12px 0;\n padding: 0 40px;\n }\n\n section {\n margin-bottom: 0;\n }\n\n section > section {\n margin: 24px 0;\n padding: 0 40px;\n }\n\n p {\n margin: 12px 0;\n padding: 0 40px;\n color: #4a4a4a;\n line-height: 1.6;\n }\n\n ul {\n margin: 16px 0;\n padding: 0 40px 0 64px;\n list-style: none;\n }\n\n li {\n margin: 8px 0;\n color: #4a4a4a;\n line-height: 1.6;\n position: relative;\n }\n\n li::before {\n content: \"\u2022\";\n color: #999999;\n position: absolute;\n left: -16px;\n font-weight: 600;\n }\n\n a {\n color: #0066cc;\n text-decoration: none;\n font-weight: 500;\n }\n\n a:hover {\n color: #0052a3;\n text-decoration: underline;\n }\n\n strong {\n color: #1a1a1a;\n font-weight: 600;\n }\n\n\n /* Last section styling */\n section:last-child {\n padding-bottom: 40px;\n }\n\n /* Responsive design */\n @media (max-width: 768px) {\n body {\n font-size: 15px;\n }\n \n article {\n margin: 20px;\n border-radius: 6px;\n }\n \n header {\n padding: 32px 24px 24px 24px;\n }\n \n h1 {\n font-size: 28px;\n }\n \n h2 {\n font-size: 18px;\n padding: 0 24px;\n margin: 32px 0 12px 0;\n }\n \n h3 {\n font-size: 15px;\n padding: 0 24px;\n margin: 24px 0 8px 0;\n }\n \n p {\n padding: 0 24px;\n }\n \n ul {\n padding: 0 24px 0 48px;\n }\n \n section > section {\n padding: 0 24px;\n }\n \n section:not(:last-child) {\n padding-bottom: 24px;\n }\n \n section:last-child {\n padding-bottom: 32px;\n }\n }\n\n @media (max-width: 480px) {\n article {\n margin: 16px;\n }\n \n header {\n padding: 24px 20px 20px 20px;\n }\n \n h1 {\n font-size: 24px;\n }\n \n h2, h3, p {\n padding-left: 20px;\n padding-right: 20px;\n }\n \n ul {\n padding: 0 20px 0 40px;\n }\n \n section > section {\n padding: 0 20px;\n }\n }\n </style>\n</head>\n<body>\n{{ $json.output }}\n</body>\n</html>"
},
"type": "n8n-nodes-base.html",
"typeVersion": 1.2,
"position": [
340,
-80
],
"id": "f21c55b8-273e-4cd8-a386-0e03126daac0",
"name": "generate_html_report"
},
{
"parameters": {
"workflowInputs": {
"values": [
{
"name": "filename"
},
{
"name": "title"
},
{
"name": "content",
"type": "any"
}
]
}
},
"type": "n8n-nodes-base.executeWorkflowTrigger",
"typeVersion": 1.1,
"position": [
-340,
-80
],
"id": "8e77f839-6bc5-456f-87bc-580631ba08c5",
"name": "Start"
},
{
"parameters": {
"content": "## Workflow Instructions\n#### Requirements\nTo use this workflow, you will need an OpenAI API Key.\n\n### Demo\nYou can find a a tutorial [here](https://www.youtube.com/@Marvomatic).\n\n\n### Support & Contact\nDeveloped by **Marvomatic**\n- [Website](https://marvomatic.com)\n- [TikTok](https://www.tiktok.com/@marvomatic)\n- [YouTube](https://www.youtube.com/@marvomatic)\n\n\nFor business inquiries, email: [hello@marvomatic.com](mailto:hello@marvomatic.com)",
"height": 380,
"width": 760
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
400,
100
],
"id": "56463b9f-9c6b-4137-8a49-e0c905238872",
"name": "Sticky Note5"
}
],
"connections": {
"convert_to_html_file": {
"main": [
[]
]
},
"convert_to_base64": {
"main": [
[
{
"node": "convert_to_html_file",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Formatter",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Formatter": {
"main": [
[
{
"node": "generate_html_report",
"type": "main",
"index": 0
}
]
]
},
"get_html_output": {
"main": [
[
{
"node": "convert_to_base64",
"type": "main",
"index": 0
}
]
]
},
"generate_html_report": {
"main": [
[
{
"node": "get_html_output",
"type": "main",
"index": 0
}
]
]
},
"Start": {
"main": [
[
{
"node": "Formatter",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "556b940d-a96f-40d9-b72d-d69b5482d56f",
"id": "lr4FCy9jvt89twbt",
"tags": []
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
openAiApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Tools - Report Generator. Uses lmChatOpenAi, agent, executeWorkflowTrigger. Event-driven trigger; 8 nodes.
Source: https://github.com/Marvomatic/n8n-templates/blob/main/report-generator/tools_report_generator.json — original creator credit. Request a take-down →
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