- Free AI SEO tools at a glance
- Ten free AI SEO tools to try
- What Google says about AI content
- Research tools or writing tools?
- A simple free AI SEO routine
- Questions to ask before you rely on a free AI SEO tool
- Signs you're using AI SEO tools the wrong way
- My plain advice on choosing free AI SEO tools
- Frequently asked questions
The best free AI SEO tools help you find the questions people search for, draft and improve content and check how your site performs in search. Some are free tools from big SEO suites, others are plugins or small specialist apps. Ten options follow in no particular order.
SEO used to mean big, complicated suites and steep learning curves. Now a small business can get keyword ideas, content outlines and search data from free tools in an afternoon.
The ten tools below are listed alphabetically and in no particular order, and every description comes from the tool's own website, read this week. If you want to show up in Google's AI answers too, my guide on appearing in Google AI Overviews explains what helps.
Free AI SEO tools at a glance
In the free plan column, Yes means the tool's own site names a free plan, a free version, a free account, a free allowance or open source software. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to start for free.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| Ahrefs AI writing tools | Free AI writing tools from Ahrefs | Quick drafts and rewrites | Yes |
| AlsoAsked | People Also Ask keyword research tool | Finding the questions people ask | Yes |
| AnswerThePublic | Keyword research and content ideas tool | Turning a topic into questions | Not stated |
| Bing Webmaster Tools | Search performance tools from Bing | Visibility in Bing and Copilot | Not stated |
| Keyword Insights | Topical authority platform for Google and AI search | Planning topic clusters | Not stated |
| Rank Math Content AI | Writing assistant inside the Rank Math WordPress plugin | WordPress users writing in the editor | Yes |
| Semrush free tools | Free tools for growth and visibility | Trying a big suite for free | Yes |
| SEO.ai | Agent that does SEO for you | Handing SEO tasks to an agent | Trial only |
| Writesonic free tools | Free AI search tools | Checking AI search visibility | Yes |
| Yoast SEO | WordPress plugin for search basics | On-page basics in WordPress | Yes |
Ten free AI SEO tools to try
Ahrefs AI writing tools
Best for: Bloggers who want free AI helpers for outlines, paragraphs and rewrites from a well-known SEO company.
AlsoAsked
Best for: Content writers who want to see the follow-up questions searchers ask so they can answer them in one article.
AnswerThePublic
Best for: Small businesses that want a picture of the questions and phrases people search around a topic before they write.
Bing Webmaster Tools
Best for: Site owners who want to see how their pages perform in Bing search and fix the issues Bing finds.
Keyword Insights
Best for: Content teams that want keywords grouped into topic clusters for both Google and AI search visibility.
Rank Math Content AI
Best for: WordPress site owners who want AI suggestions for content and SEO right inside the editor they already use.
Semrush free tools
Best for: Marketers who want free checks and generators from a large SEO suite before deciding whether to upgrade.
SEO.ai
Best for: Busy owners who want an AI agent to research, write and optimise content, testing it on a short trial first.
Writesonic free tools
Best for: Marketers who want free tools for AI search and content tasks from an AI writing company.
Yoast SEO
Best for: WordPress beginners who want a free plugin for titles, meta descriptions and readability before adding AI features.
What Google says about AI content
Google Search Central's guidance on generative AI content says that using generative AI tools or similar tools to generate many pages without adding value for users may violate Google's spam policy on scaled content abuse.
That's the line to keep in mind. AI can speed up research, outlines and first drafts, but every page you publish still needs something a reader can't get elsewhere, such as your experience, examples or clear answers to their questions.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
Research tools or writing tools?
Research tools show you what people search for and which questions they ask next. Writing tools help you turn that research into outlines, paragraphs and better titles.
You'll get the best results using one of each: a research tool to decide what to write and a writing helper to get the first draft down faster, then your own knowledge to make it worth reading.
A simple free AI SEO routine
Pick one question your customers ask often and look at the related questions people search for. Answer the main question in your first two sentences, then cover the follow-ups in short sections with clear headings.
After publishing, check how the page performs in your search tools a few weeks later and update it with anything new you've learned. Small, steady improvements beat big rewrites.
Questions to ask before you rely on a free AI SEO tool
- What does the free version include, and what's limited?
- Does it help with research, writing or both?
- Can I check its suggestions against real search data?
- Does it work inside the website platform I use?
- Will it help me answer questions, not just stuff keywords?
- Can I export what I find?
Signs you're using AI SEO tools the wrong way
- Pages all sound the same. Add your own view.
- You publish dozens a day. Slow down and add value.
- Nobody checks facts. Verify before publishing.
- Traffic doesn't move. Answer the question first.
Do you make an AI SEO tool? Tool makers can ask to be considered for a featured place on this list.
My plain advice on choosing free AI SEO tools
Use AI to do the legwork and keep the thinking for yourself. The pages that win are the ones with a real answer and a real point of view, and no tool can supply your experience for you.
Start with free tools and only upgrade when you hit a limit that's holding you back. My round-up of AI SEO tools covers the bigger platforms for when that day comes.
Frequently asked questions
What are the best free AI SEO tools?
It depends on whether you need research, writing help or search data. The list above is in no particular order.
Are free AI SEO tools any good?
Many are useful for research and drafts. The free plan column shows what each tool's own site says.
Does Google penalise AI content?
Google says generating many pages without adding value for users may violate its spam policy on scaled content abuse.
Can AI write my blog posts for SEO?
AI can help with drafts, but the best pages add your own experience, examples and clear answers.
Do I still need keyword research?
Yes. Knowing the questions people ask helps you write pages that match what they're looking for.
Which tools work in WordPress?
Some tools on this list are WordPress plugins, as their descriptions show.
