The free AI blog generator for agencies and creators
RankThis is an AI blog generator that reads your sitemap, finds topics you have not covered, and writes a fully optimised long-form article with real internal links and 13 SEO checks.
Sign in with Google — no card needed
Configuration
SEO Score
The RankThis way
Connect your site and RankThis maps every existing post, then picks a topic you have not covered. Give the AI context to do work that is genuinely on-brand.
3 to 5 internal links per post, anchored to actual URLs from your sitemap. Not invented. Not placeholder text.
13 checks run on every post. Word count, heading structure, keyword placement, readability, meta description. One-click fixes for anything that fails.
LinkedIn post, Twitter/X thread, and email newsletter from any article. Ready to copy in 30 seconds.
A 1,536 x 1,024 editorial image from gpt-image-1, downloaded as PNG. Add your OpenAI key once and hit Image.
Save your sites once in settings. Pick the destination, choose draft or live, and send it. No copy-pasting.
Paste a full month of topics. RankThis writes each post in sequence and saves every result automatically.
Ready when you are
From URL to published article in the time it takes to write a brief.
RankThis reads your homepage to understand your business and scans your sitemap to see what you have already written. That context shapes every word it produces.
Type a keyword, or leave the field blank. If you leave it blank, RankThis finds the best uncovered topic for your site and tells you what it chose and why.
The post streams into a live editor. Fix anything the SEO score flags, generate a featured image, create social posts, then publish directly to WordPress or Ghost.
Free to use
Sign in with Google, add your Anthropic key, and paste your site URL. RankThis handles the rest.
No card required. Bring your own Anthropic key.
FAQ
RankThis is an AI blog writing tool that reads your actual website before it writes anything. It scans your sitemap, finds topics you have not covered, and writes a fully structured long-form post with real internal links, a live SEO score, a featured image, and social posts.
No. RankThis is free. You bring your own Anthropic API key and pay Claude directly at API cost. There is no markup, no token cap, and no hidden fees. An OpenAI key is optional and only needed if you want AI-generated featured images.
Yes. Go to Settings, add your WordPress URL and application password (or your Ghost Admin API key), and save. When a post is ready, click Publish, pick the destination, choose draft or published, and send it.
Yes. Hit Bulk Generate in the sidebar, paste your topic list one per line, and let it run. RankThis writes each post in sequence, saving every result automatically as it goes.
No. Before writing anything, RankThis parses your sitemap and maps every existing post. It picks a topic that is genuinely uncovered, so you will not end up with duplicate content or posts fighting each other for the same keyword.
RankThis publishes directly to WordPress and Ghost. For everything else, download the post as a markdown file and paste it into your CMS.