Transform Reddit Questions into SEO Blog Posts with n8n + OpenAI

Turn Reddit questions into SEO-ready blog posts—automatically

This n8n workflow pulls real questions from a chosen Reddit subreddit (like r/n8n) and uses OpenAI to turn them into fully structured, publishable SEO blog articles—complete with a clean title, intro, step-by-step guide, and conclusion.

What this workflow does

• Manually triggered when you want to generate new content.
• Scrapes the latest posts from a specific subreddit (configurable in the Reddit node).
• Filters for real questions using keywords like “how,” “what,” and “why.”
• Logs question candidates into a Google Sheet as raw input.
• Enhances each question with AI—rephrases it, then creates a clean title and slug.
• Generates full-length blog content with:
  • ✏️ Intro paragraph
  • ✅ Step-by-step guide
  • 🧠 Clear conclusion
• Saves the final blog posts to a second Google Sheet for publishing.

Use cases

• Content teams scaling SEO output by leveraging real community questions (no blank-page writing).
• n8n users and automation engineers turning recurring Reddit problems into helpful tutorial posts.
• SaaS operators capturing fresh support-style insights from a niche subreddit and converting them into blog traffic.

Technical details

• Manual Trigger
• Reddit (OAuth via Reddit API) to scrape subreddit posts
• OpenAI to rephrase questions, generate titles/slugs, and write SEO blog content
• Google Sheets to store raw inputs and final articles
• Uses nodes such as set, code, sticky note, reddit, and google sheets

Setup takes about 15–20 minutes to connect Reddit API (OAuth), OpenAI API, and Google Sheets, then fine-tune prompts.