Things have heated up with the latest $200 Comet AI browser launched by Perplexity, now available for free. Not only the AI browser, but there are already AI SEO tools free for small businesses and individuals, which can be a game-changer.
Can SEO be automated?
Yes, AI can automate content writing, keyword analysis, technical SEO audits, backlink monitoring, competitor analysis, and reporting. However, you still need real humans to monitor the automation process and take strategic decisions.
I think leveraging AI tools can improve website SEO, drive traffic, and boost conversions by reducing manual work. AI SEO optimization tools can help you automate content optimization, keyword research, track ranking, and overall performance.
Let’s uncover the top free tools like Rank Math, Semrush, and more SEO Tool examples to supercharge your digital marketing journey. I am using Rank Math, Semrush, and WriterZen for my blog and my newly launched website, Deasily.
Table of Contents
Why You Should Use AI in SEO?
Because only implementing traditional SEO doesn’t work anymore. A combination of AI + SEO is a winning strategy to drive more traffic.
- Identify ranking opportunities through AI SEO tracking tools like Semrush AI SEO toolkit.
- Automate content optimization and internal linking via Rank Math SEO Pro.
- Generate SEO-friendly content ideas instantly with WriterZen.
- Drives traffic on Google AI overviews, ChatGPT, Perplexity, and Gemini.
My Take: AI SEO tools provide flexible and scalable solutions to not only boost traffic & conversions but also make data-driven decisions.
Comparison Table Of Top SEO Tools Powered By AI
| Tool | Free Trial/ Plan | Starting Price | WordPress Plugin | Chrome Extension |
| Rank Math SEO | ✅ | $7.99/month (Pro) | ✅ | ❌ |
| Semrush AI Toolkit | ❌ | $99/month/domain | ✅ (via SWA) | ✅ |
| WriterZen | ✅ | $150 one-time (AIO Basic) | ❌ | ❌ |
| Perplexity Comet AI | ✅ | $20/month Pro | ❌ | ❌ |
| Surfer SEO | ❌ | $79/month Essential | ✅ (integration) | ✅ |
| Scalenut | ✅ (7-day) | $20/month | ❌ | ✅ |
| NeuronWriter | ✅ Yes (7-day) | $19.12/month | ❌ No | ✅ |
| GrowthBar | ✅ Yes | $29/month | ✅ Yes | ✅ |
Detailed List of Top AI SEO Tools of 2025
1. Rank Math SEO (Free + Pro)
Founders: Bhanu Ahluwalia, Nimit Kashyap, and Suraj Vibhute
Support: Multilingual support.
Refund: 30-day money-back guarantee
Rank Math is the #1 WordPress plugin and a top AI SEO writing tool built for WordPress lovers. It automatically analyzes your content loopholes, provides smarter optimization tips, and integrates AI to generate meta descriptions and schema markup.
Key Features:
- AI-powered content analysis and suggestions.
- SEO audit, keyword & internal linking suggestions.
- Automated schema and Meta title & description optimization.
- 750 free AI credits to write an AI-optimized article step by step.
2. Semrush AI SEO Toolkit
Founders: Oleg Shchegolev and Dmitry Melnikov
Support: Supports multiple languages.
Refund: 7-day money-back guarantee
The Semrush AI Toolkit is a new-age platform that combines SEO, competitive analysis, and AI-driven automation. It helps you measure visibility across Google AI Overviews and brand mentions.
Key Features:
- Track site visibility across LLMs like Google AI, ChatGPT, Perplexity, etc.
- Up to 3 competitors’ topic gap analysis & strategic recommendations.
- Content toolkit to write SEO-optimized articles.
- Discover prompts and boost AI visibility by finding the intent, volume, and difficulty.
Best For: Marketing agencies and data-driven SEO professionals.
3. WriterZen
Founders: Daniel Nguyen, Andy Tran, and Khang Ha.
Support: Supports 46 languages.
Refund: 21-day money-back guarantee.
WriterZen is an all-in-one AI SEO optimization tool that focuses on topic discovery, keyword research & planning, and content creation. It’s built-in plagiarism checker ensures your content is unique and SEO-friendly.
Key Features:
- Create a workspace and projects for teams and improve task efficiency.
- Content creator powered by AI shows SERP view and competitive analysis.
- SERP overview with search volume, CPC, and keyword ideas.
- Question-based keywords increase the probability of getting indexed in AI overviews.
- Auto-clustering helps uncover in-depth insights and get actionable tips.
Best For: Content marketers and SEO writers who need structured topic research and SEO-focused AI writing.
4. Perplexity’s Comet AI Browser
Founders: Aravind Srinivas
Support: Multiple languages are supported.
Refund: 14 days from purchase.
The Comet AI Browser by Perplexity is a direct competition to the very old Chrome Browser. The browser helps automate daily tasks and makes browsing the web more efficient. It is a big step towards making internet browsing using AI free for everyone.
Key Features:
- Book appointments, respond to emails, remind yourself of meetings, and manage your to-do list.
- Bookmark your important tabs and keep a history of your browsing under workspaces.
- Generate articles, summarize videos and documents into bulletins, and even create images for free.
- Learns your habits and provides smart recommendations for shopping. Automates repetitive tasks like form filling, etc.
- Integrates with Google Calendar, email, and other apps.
Best For: SEO strategists exploring AI-driven search results and content visibility across ChatGPT and Google’s AI ecosystem.
5. Surfer SEO (Untested)
Founders: Gaurav Goyal, Mayank Jain, and Saurabh Wadhawan
Support: Surfer’s Fact Go Global is available in 15 languages.
Refund: 7-day money-back guarantee.
Honestly, I haven’t used Surfer SEO, but top SEO agencies recommend it as the best AI SEO writing and optimization tool. The platform blends NLP algorithms with SERP analysis to boost your visibility on AI searches.
Key Features:
- Optimizes content for AI search engines like Google, ChatGPT, and Gemini.
- Automates the tedious internal linking process.
- AI humanizer transforms AI-written content into plagiarism-free and original content.
- An AI content detector with a plagiarism checker ensures unique content.
- Collaborate with your team on the same project and work simultaneously.
Best For: Writers and SEO specialists focused on on-page optimization.
6. Scalenut (Untested)
Founders: Gaurav Goyal, Mayank Jain, and Saurabh Wadhawan
Support: Only the English language is supported.
Refund: There is a zero refund policy
Travel bloggers, finance affiliates, or technology experts and agencies, Scalenut is used by everyone. This tool is built for traffic growth and search visibility by optimizing content for LLMs and Reddit.
Key Features:
- Monitor and track mentions across Reddit and AI engines.
- Automated backlink creation without any cold outreach.
- Leverage AI to write articles and optimize for human and SEO-readability.
- Made for GEO with real-time GEO scoring.
- Track competitor visibility and generate recommendations to boost AI crawls.
Best For: Small business owners and content agencies.
7. NeuronWriter (Untested)
Founders: Pawel Sokolowski and Damian Kielbasa
Support: Works in 170 languages
Refund: 30-day money-back guarantee
If I have to choose between Scalenut vs NeuronWriter, I would go with Scalenut because Scalenut isn’t limited to content optimization. However, NeuronWriter helps you optimize content using NLP-based analysis, making it one of the top AI writing software in the industry.
Key Features:
- Content optimization using advanced SEO tools for better search engine ranking.
- Analyze and integrate competitor strategies with full keyword insights.
- Integration with GSC and WordPress improves productivity and streamlines workflow.
- Use AI to generate images that align with your content.
- Get internal link suggestions and improve site crawling by search engines.
Best For: Freelancers and agencies managing long-form content projects.
8. GrowthBar (Untested)
Founders: Hailey and Mark
Support: 25 languages supported.
Refund: 100% money-back guarantee
Growthbar has now been acquired by SEOptimer and is in the process of being merged into the same platform. Using its 7-day free trial, users can test their content powered by ChatGPT-4.
Key Features:
- Collaborate with your teams on the same content for faster results.
- Blog builder writes entire blog post in under 2 minutes.
- Track your competitor’s keywords, Google Ads, and backlinks.
- Custom AI model matches your uploaded content with your brand’s voice.
- Free Chrome extension with every Growthbar plan.
Best For: Startups and solopreneurs who need a simple tool to check SEO ranking and grow traffic.
How to Choose the Right AI SEO Tool?
Although this ain’t rocket science, you would still want to consider a few factors before you go with one or more SEO tools powered by AI.
- Choose Rank Math SEO if you want a free WordPress plugin for on-page SEO.
- Use Semrush AI Toolkit if you need advanced tracking and competitor data.
- Try WriterZen for keyword research, analytics, and topic research.
- Experiment with Perplexity’s Comet AI Browser to understand how AI search engines surface your content.
Each of these SEO tools examples (solely my opinion & unbiased) can help you save time by automating boring tasks. In a few days or months, you will see a spike in your site rankings with more visibility in both traditional and AI-driven searches.
Conclusion
As AI revolutionizes how search engines evaluate content, using AI SEO tools is no longer optional but mandatory. They provide smarter insights, faster automation, and better optimization techniques.
For beginners, Rank Math SEO and WriterZen are perfect starting points. For agencies and professionals, Semrush AI Toolkit delivers next-level visibility and analysis. Thus, helping you increase traffic and dominate in AI-powered search results.
FAQs | Best AI SEO Tools Free For Small Businesses
What are SEO tools, and why do we need them?
SEO tools help analyze performance, fix issues, and improve visibility. They’re essential for increasing rankings and organic traffic.
What is SEO automation?
SEO automation uses AI SEO optimization tools to automatically perform keyword research, audits, and reporting. Thus, it saves tons of hours required to complete the task manually.
Which SEO tool is best?
Semrush AI Toolkit is best for audit, backlinks, AI visibility, and Brand mentions. However, for on-page SEO, Rank Math offers the best free features for WordPress users.
What are SEO tools in digital marketing?
In digital marketing, SEO tools assist with keyword research, on-page optimization, backlink monitoring, and competitor analytics.
What are SEO audit tools?
SEO audit tools like Semrush and Rank Math scan your website for issues affecting rankings. This includes issues such as broken links, slow speed, or missing meta tags.
Will AI replace SEO?
AI won’t replace SEO, but the fact is that you need to learn and implement AI with SEO (AEO). AI enhances SEO by automating tasks and offering data-driven insights for better search optimization.
What are the best AI SEO tools for optimizing content for ChatGPT searches?
Semrush AI Toolkit, Perplexity’s Comet AI Browser, and Surfer SEO are the best tools for optimizing your content to rank within AI Overviews and ChatGPT search experiences.
