I tested dozens of free AI tools for SEO in 2026. These 6 actually work.
Kenneth Pangan
Katelin Teen
Last edited January 7, 2026
Expert Verified
It feels like the SEO world is completely obsessed with AI right now. A new tool seems to launch every day, promising to automate everything and get you to the top of Google.
But here's the catch: a lot of these so-called "free AI tools for SEO" are either very restricted trials or just glorified content spinners that produce low-quality content. Trying to find tools that are actually free and useful can be challenging.
So, I did the legwork. I've spent the past few weeks testing a ton of them to figure out which ones offer tangible value.
In this guide, I'll walk you through 6 free tools that offer significant functionality. We'll cover everything from creating content that's ready to publish with the eesel AI blog writer to checking your site's technical health and seeing how you appear in AI search.
What are free AI tools for SEO?
Simply put, AI tools for SEO are applications that use artificial intelligence to make regular SEO jobs easier or more effective. This includes things like keyword research, checking out competitors, writing content, on-page tweaks, and technical site checks.
They can be thought of as assistants. They can analyze data much faster than a person, find opportunities you might not have seen, and help you create more content without sacrificing quality. The following graphic breaks down how they act as a co-pilot for SEO professionals.
But let's be clear about what they're for. These tools aren't here to take over the jobs of SEO pros. They're meant to make us faster and more informed, so we can spend more time on the big-picture strategy that still requires a human touch.
How the best free AI tools for SEO were chosen
To make this list practical, each tool was reviewed based on several criteria to ensure they offer real value without a price tag.
Here’s what I was looking for:
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A generous free plan: The tool had to offer a functional free version, not just a limited trial that restricts core features. It needed to be useful from the get-go.
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Actionable insights: The tool needed to provide clear recommendations that could be used to improve SEO.
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Specific use case: Each tool on this list specializes in a specific area. Whether it's content generation, technical analysis, or AI visibility, they're specialists.
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Ease of use: The tools selected are intuitive enough for marketers and content creators, not just developers.
A comparison of top free AI SEO tools
Here's a quick side-by-side look at the tools that made the final cut.
| Tool | Best For | Key Free Feature | Pricing Model |
|---|---|---|---|
| eesel AI blog writer | Generating complete, publish-ready blog posts | First blog generation is completely free | Free to try, then credit-based |
| AIOSEO SEO Analyzer | On-demand website health checks | Comprehensive on-page SEO audit | Free tool, with a premium plugin |
| Indexly | Getting new pages indexed quickly | Automatic sitemap monitoring and submissions | Free plan with paid tiers |
| Frase GEO Score Checker | Optimizing for AI answer engines | Unlimited GEO score analysis | Free tool, with a premium platform |
| SEO.ai Keyword Tool | AI-powered keyword discovery | Unlimited keyword suggestions and research | Free tool, with a premium platform |
| SEO Review Tools | Tracking brand visibility in LLMs | AI brand visibility report across multiple AIs | Free tool, with a premium platform |
The 6 best free AI tools for SEO
Alright, let’s get into the specifics. Here’s a full breakdown of the tools that I recommend, what they do best, and how you can get started with them.
1. eesel AI blog writer
Best for: Content teams and solo creators who want to produce more high-quality, publish-ready content.
The eesel AI blog writer is a content generation platform that can take you from a single keyword to a complete, SEO-optimized blog post in minutes.
For example, eesel AI used this tool to grow its organic impressions from 700 to 750,000 per day in only three months.
It produces an article with headings, images, media embeds, and internal links. It starts by learning your brand's context from your website, then does its own research to pull in relevant data and sources.
Key features include automatically adding AI-generated images, finding relevant YouTube videos, and including real Reddit quotes to make the content more relatable. It's also built for AEO (AI Engine Optimization), which helps your content get cited in places like Google AI Overviews, ChatGPT, and Perplexity.
Pricing: You can generate your first blog free to see the quality for yourself. After that, it uses a credit-based system, starting at $99 for 50 articles.
2. AIOSEO SEO analyzer
Best for: Getting a quick, thorough health check of any page on your site.
All in One SEO (AIOSEO) is a well-known WordPress plugin that over 3 million professionals use. They also offer a free SEO Analyzer tool on their website that works for any site, no matter the platform.
It's very straightforward. You just paste in a URL, and it performs a detailed on-page SEO audit. It looks at everything from your meta title and description to your heading structure, links, and image alt text.
The report it generates is what makes it so useful. You get an overall score out of 100 and a simple checklist of improvements, pointing out critical errors and how to fix them. It's great for figuring out why a certain page isn't performing well. Its biggest strength is its simplicity; the report is easy to follow, and the suggestions are things you can fix right away. Just remember, it only looks at on-page factors, so you won't get info on backlinks or domain authority.
Pricing: The website analyzer is completely free to use. The full AIOSEO plugin also has a free version for WordPress users.
3. Indexly
Best for: New websites or sites that publish frequently and need to get indexed by search engines fast.
It can take time for search engines to find and index new content. Getting new pages indexed can sometimes take days, if not weeks.
Indexly was created to solve this problem by automating the indexing process. Instead of just waiting for Google to crawl your site, Indexly keeps an eye on your sitemap and automatically submits new or unindexed pages to Google, Bing, and Yandex.
The free plan offers substantial functionality. It lets you connect a site and automate submissions, and their website says it can significantly cut down the time it takes for your pages to show up in search results. A key benefit is its set-and-forget nature. It just works in the background, making sure your new content gets seen by search engines as quickly as possible.
Pricing: Indexly offers a free tier for up to 20 websites. Paid plans for more sites and daily submissions start at $14/month.
4. Frase GEO score checker
Best for: Tuning up your existing content so it gets cited by AI platforms like ChatGPT and Google AI Overviews.
With generative AI becoming a bigger part of search, traditional SEO isn't always enough. Your content now needs to be optimized for AI engines so they can easily understand, trust, and reference it.
Frase's free GEO Score Checker is designed for this new environment. GEO stands for Generative Engine Optimization, and it's all about making your content AI-friendly. This tool analyzes any URL and gives you three key scores: Authority (credibility signals), Readability (clarity), and Structure (proper HTML). It's completely free with no signup, and you can use it as many times as you want.
It gives you a unique look at how AI platforms "read" your content, which is something most other tools don't measure. The only thing to keep in mind is that the tool is just for analysis. It gives you a score but doesn't provide AI tools to help you improve it unless you sign up for a paid Frase plan.
Pricing: The GEO Score Checker is 100% free. The full Frase content optimization platform starts at $38/month.
5. SEO.ai keyword tool
Best for: Finding keyword clusters and long-tail variations that are more creative than what standard tools suggest.
SEO.ai offers a few free tools, but its AI Keyword Tool is a useful tool for content strategists looking for fresh ideas.
Instead of just giving you a list of similar terms, it uses AI to generate keyword suggestions based on context and what users are actually looking for. This is great for discovering valuable long-tail keywords and planning out your topic clusters more effectively.
It’s easy to use. Just enter a starting keyword or a brief description of your topic, and the tool provides a list of questions, related terms, and new ideas. It's a great way to get your research started when you're feeling stuck. The suggestions can provide a different perspective compared to what you get from more basic generators. The one downside is that it doesn't show metrics like search volume or keyword difficulty, so you'll need another tool for that.
Pricing: The AI Keyword Tool is free to use with no login required. The full SEO.ai platform is a paid subscription.
6. SEO review tools AI visibility checker
Best for: Seeing how your brand is being talked about in the responses from major AI models.
To track brand mentions on platforms like ChatGPT, Google Gemini, and Perplexity, a specific tool is required. Manual checking can be time-consuming and incomplete.
The AI Brand Visibility tool from SEO Review Tools is perfect for this. This free tool analyzes how different AI models talk about your brand, products, and services.
It creates a report covering brand awareness, credibility, general sentiment, and even tells you who the AIs think your main competitors are across Gemini, ChatGPT, and Perplexity. This is valuable information. Getting mentioned in a positive light in AI chats can build brand authority and drive traffic. This tool helps you see where you can improve how AI models view your brand and gives you a clear benchmark for your AI visibility.
Pricing: The AI Visibility Checker is free to use.
How to get the most out of your new free AI tools for SEO
Having the right tools is a great start, but you need to fit them into a workflow to see real results.
Don't just use them one by one. Combine their strengths: use a keyword tool for research, a content generator for a strong first draft, an analyzer for on-page tweaks, an indexing tool to get it live, and a visibility tracker to see how you're doing in the new AI-driven world of search.
To see some of these tools in action, the video below provides a hands-on look at how several free AI platforms can be integrated into a content creation process.
A video showcasing 10 amazing free AI tools for SEO and content creation.
Start building your toolkit today
You don't need a huge budget to start using AI in your SEO strategy. The six tools we've covered here are incredibly valuable, and you can begin using all of them for free right now.
They can help you create better content more quickly, find technical problems, and track your visibility as search continues to evolve.
While each tool is useful for a specific job, some teams may prefer a more all-in-one solution for content creation.
For example, the eesel AI blog writer is designed to handle the process from topic to a complete article with assets needed for publication. You can try the tool for free to see how it fits into your workflow.
Frequently asked questions
The biggest benefits are speed and efficiency. These tools can handle time-consuming tasks like keyword brainstorming, on-page analysis, and even content drafting in a fraction of the time it would take manually. This frees you up to focus on strategy and creative work.
Not at all. Think of them as assistants, not replacements. While free AI tools for SEO are great for automating repetitive tasks and generating data, they lack the critical thinking, creativity, and strategic oversight that a human expert provides.
Start by identifying your biggest bottleneck. If you struggle with content creation, try a tool like the eesel AI blog writer. If technical SEO is your weak spot, an analyzer like AIOSEO is a good starting point. Focus on tools that solve a specific, tangible problem for you.
Yes, the main risk is over-reliance. AI-generated content can sometimes be generic or inaccurate if not properly reviewed and edited by a human. Always use the output as a starting point and add your own expertise and voice to ensure quality and originality.
The most common limitation is the scope of the free plan. Many free AI tools for SEO will have caps on usage, like a limited number of reports, keyword searches, or articles you can generate per month. They provide a good introduction to the platform's power but often require an upgrade for heavy use.
The key is to create a process. For example, you could use SEO.ai for initial keyword discovery, then use the eesel AI blog writer to create a draft, and finally use the AIOSEO analyzer to check your on-page optimization before publishing. Using them together, each for its specific strength, creates a powerful workflow.
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Article by
Kenneth Pangan
Writer and marketer for over ten years, Kenneth Pangan splits his time between history, politics, and art with plenty of interruptions from his dogs demanding attention.
