What is Onpage.ai?

Onpage.ai is an all-in-one SEO desktop application that combines a website crawler, SERP analyzer, and AI writer into a single tool. It is designed to help SEO professionals audit websites, analyze search engine results, and generate optimized content. The app also includes an LLMs.txt generator and an AI detector/humanizer, positioning itself as a comprehensive alternative to tools like Screaming Frog, Surfer SEO, and Copy.ai.

How to use Onpage.ai?

Download the desktop app for Windows, Mac, or Linux and sign up to receive 100 free credits. Use the SEO Spider to crawl websites and identify technical issues, the SERP Analyzer to research top-ranking pages, and the AI Writer to generate content with citations. Credits are consumed per action, and you can upgrade to a paid plan or purchase additional credit packs as needed.

Core features of Onpage.ai

SEO Spider: Crawl websites like Googlebot, find broken links, missing meta tags, and 100+ SEO issues with JS rendering.
SERP Analyzer: Reverse-engineer top rankings, analyze word counts, headings, and get AI-powered insights with TF-IDF.
AI Writer: Research-driven AI that writes SEO articles with citations from 20+ real sources and 7 templates.
LLMs.txt Generator: Create llms.txt files to make sites AI-friendly for assistants and RAG apps.
AI Detector & Humanizer: Detect AI content and transform it into natural, human-like writing.
Desktop Privacy: Data stays on your machine with no cloud uploads required.