SEO changed more in the last year than in the previous five. It’s no longer just about ranking on Google — now you also have to get mentioned by ChatGPT, Perplexity, and Google’s AI answers. The tools below reflect that shift, and all of them live in our directory if you want to dig deeper.
We’ve grouped them by the job they do, so you can jump straight to whatever you’re trying to fix.
Keyword & intent research
1. Keywords Cluster
Keywords Cluster surfaces profitable keywords along with search volume and difficulty — the unglamorous-but-essential first step before you write anything. A solid free starting point if you don’t want to pay for a full suite yet.
Best for: finding topics worth writing about. Pricing: Free.
2. IntentHunter
IntentHunter takes a different angle — instead of keywords, it listens across social platforms for people showing buying intent, so you can find leads (and content ideas) from real conversations.
Best for: social listening and high-intent lead generation. Pricing: Free.
AI content built for search
3. SEOAuthori
SEOAuthori researches search intent, competitor structure, and E-E-A-T signals, then hands you a finished, publishable article. The competitor-and-intent research is what sets it apart from a generic “write me a blog post” prompt.
Best for: producing structured, research-backed SEO drafts. Pricing: Free.
4. MakePostAI
MakePostAI generates social posts, carousels, and stories in seconds. Social isn’t traditional SEO, but it increasingly feeds AI search — Perplexity and others lean on social signals — so it earns a spot here.
Best for: repurposing content into social at speed. Pricing: Free.
The new frontier: AI visibility (AEO / GEO)
This is the 2026 story. If your customers ask ChatGPT for recommendations, you want to be the answer. These tools measure and improve exactly that.
5. VisibAI
VisibAI runs an audit to check whether AI platforms like ChatGPT actually know your business — a quick reality check most brands have never done.
Best for: a first audit of your AI-search presence. Pricing: Free.
6. AEO Tool
AEO Tool tracks and improves how often AI search engines cite your site over time — the monitoring layer once you know you have a presence to grow.
Best for: ongoing AI-citation tracking. Pricing: Paid.
7. SEO Ladders
SEO Ladders optimizes content for both AI engines and classic Google ranking — useful if you’d rather handle both fronts in one place.
Best for: dual AI + Google optimization. Pricing: Free.
Local & autonomous SEO
8. Local OS
Local OS tracks Google Maps rankings by area, compares local competitors, and analyzes reviews — built for anyone whose customers search “near me.”
Best for: local and multi-location businesses. Pricing: Free.
9. Agentic SEO
Agentic SEO is an autonomous agent that manages SEO end to end. It’s the most hands-off option here — promising if you want to delegate the busywork, though you’ll still want a human checking its calls.
Best for: teams wanting to automate routine SEO work. Pricing: Paid.
So which should you actually use?
If you’re starting from zero: run a free audit with VisibAI, find topics with Keywords Cluster, and draft with SEOAuthori. Add AEO tracking once you’re publishing consistently. Don’t buy the autonomous and agentic tools until the fundamentals are working — automation amplifies whatever strategy you already have, good or bad.
Frequently asked questions
What is the best free AI SEO tool?
For most people, Keywords Cluster (research) and SEOAuthori (content) are strong free picks, with VisibAI for a free AI-visibility audit.
What is AEO and why does it matter?
AEO (Answer Engine Optimization, sometimes called GEO) is about getting cited by AI search tools like ChatGPT and Perplexity. As more people ask AI for recommendations, being the answer matters as much as ranking on Google.
Can AI SEO tools replace an SEO specialist?
Not yet. They remove busywork and speed up research and drafting, but strategy, judgment, and quality control still need a human.
Built an AI SEO tool? Submit it to our directory for free and get in front of marketers actively looking for tools. Or explore more AI SEO tools.
