SEO tools built for modern search.
Synthtix is a free SEO and GEO utility platform — the public tools ecosystem that powers the Rank99 Pro search intelligence suite.
Free tools for a complex new search landscape.
Search has changed. Google AI Overviews, ChatGPT responses, and Perplexity answers now appear before traditional organic results for millions of queries. Businesses that understand GEO — generative engine optimization — are gaining an enormous early-mover advantage.
Synthtix gives every business access to the tools they need to compete — from meta description generators to full GEO optimization checks — completely free. For deeper competitive intelligence, Rank99 Pro goes further.
What we believe
The principles behind every tool we build.
Real tools, real results
Every tool we ship solves an actual SEO or GEO problem. No fluff, no fake demos — just utilities that generate output you can use immediately.
Built for the new search era
AI is rewriting how search works. We're building tools specifically for the overlap between traditional SEO and generative engine optimization.
Free tools, serious results
Great SEO tooling shouldn't require a $500/month subscription. Synthtix Tools are free because we believe access to good data shouldn't be a luxury.
Synthtix powers Rank99
This platform is the free utility layer of the Rank99 ecosystem. Use Synthtix for quick wins and daily tasks. Use Rank99 Pro when you need depth.
Built by real people.
Synthtix is a focused project built by David and Marilyn — the same team behind Rank99 Pro. Our goal is to give every business owner, marketer, and agency practitioner access to practical SEO and GEO tools without paywalls or friction.
Built with a strong dose of AI-powered brainstorming and a deep respect for what actually moves rankings.
Start using the free tools
12 AI-powered SEO and GEO utilities. No account required.