Quick answer
The best free SEO tools in 2026 cover the whole SEO process: keyword research, technical SEO audits, on-page optimisation, backlinks, local SEO, AI search and rank tracking. Online Software House offers 107 free SEO tools in 10 categories, including a free SEO audit, keyword research tool, backlink checker, Google rank checker, page speed checker, schema generator, Google Business Profile auditor and AI search (GEO) tools. Every tool works online in your browser, with no download and no credit card. This free SEO tools list shows what each tool does and which ones to use first.
Key takeaways
- 107 free online SEO tools in 10 categories: everything you need for SEO, in one place.
- Every free SEO checker gives a clear result and a fix list, not just a score.
- Includes free AI SEO tools, llms.txt and E-E-A-T checks that most free SEO toolkits do not have.
- Use the workflows below to pick the best free SEO tools for beginners, small businesses, bloggers and agencies.
What are free SEO tools?
Free SEO tools are online tools that help you improve your website's position in search engines like Google and Bing without paying for software. A good free SEO tool checks something you cannot easily see yourself, such as which keywords people search, why a page is not indexed, how fast a page loads, which websites link to you or where you rank, and then tells you what to fix.
Most free SEO tools do one job. That is why SEO professionals usually use a set of tools: a keyword research tool, an SEO audit tool, a backlink checker, a rank checker and so on. This list puts 107 of them in one place, organised by the part of SEO they help with.
Why we built 107 free SEO tools
We are a web development and SEO agency working with businesses in the USA, UK, UAE and Pakistan. Every client project needs the same SEO checks: is the site crawlable, which keywords can it win, what is wrong with each page, who links to it, and is it improving? Paid SEO software is excellent, but many small businesses cannot justify a monthly subscription just to answer those questions.
So we built the SEO tools we use in our own client work and made them free for everyone. Each tool does one job well, explains its result in plain English, and tells you what to fix. Where a number is an estimate, the tool says so.
Free SEO tools list: all 107 tools at a glance
The best free SEO tools by category
Below is every tool in our free SEO toolkit, grouped by category. Click any tool to use it online for free.
Free technical SEO tools (11)
Fix the technical SEO problems that stop search engines from crawling, rendering and trusting your website: redirects, canonicals, HTTPS, mobile parity, JavaScript and site speed. Start with the free SEO Audit.
| Free tool | What it does |
|---|---|
| SEO Audit | Analyze your website's SEO health. |
| Page Speed Checker | Check your website loading speed. |
| Get URL Source Code | View the HTML source and headers of any URL. |
| Redirect Chain Finder | Trace every redirect hop and find chains and loops. |
| Canonical Checker | Validate a page's canonical tag and its target. |
| JavaScript Rendering Checker | See how much of a page needs JavaScript to show. |
| Mobile Parity Checker | Compare the mobile and desktop versions of a page. |
| HTTPS & Security Checker | Check HTTPS redirects, certificate and security headers. |
| Pagination Auditor | Check paginated listings follow Google's guidance. |
| Site Speed Prioritiser | Turn speed problems into a ranked fix list. |
| Technical Diff Watcher | See what changed on a page since an archived copy. |
Free crawling and indexing tools (12)
Make sure Google finds and indexes every important page, and only those pages: sitemaps, robots.txt, crawl budget, orphan pages, duplicate content and index bloat. Start with the free Sitemap Auditor.
| Free tool | What it does |
|---|---|
| Sitemap Generator | Create XML sitemaps instantly. |
| Robots.txt Generator | Generate robots.txt files easily. |
| Index Coverage Reader | Explain every Search Console "not indexed" reason. |
| Sitemap Auditor | Validate your XML sitemap and test its URLs. |
| Robots.txt Checker | Test robots.txt rules for Google, Bing and AI bots. |
| Crawl Budget Analyser | Find URLs that waste Googlebot's crawl time. |
| Orphan Page Finder | Find sitemap pages that nothing links to. |
| Duplicate Content Finder | Spot duplicate titles and near-identical pages. |
| URL Parameter Handler | Classify URL parameters and get robots.txt rules. |
| Internal Link Mapper | Map inlinks, anchors and weakly linked pages. |
| Click Depth Auditor | See how many clicks each page is from home. |
| Index Bloat Finder | Find thin and low-value pages diluting your index. |
Free keyword research tools (10)
Find keywords you can rank for, understand search intent, cluster keywords into topics and decide which keywords to target first. Start with the free Keyword Research.
| Free tool | What it does |
|---|---|
| Keyword Research | Find profitable keywords for your niche. |
| Keyword Clusterer | Group up to 500 keywords into page-sized clusters. |
| Search Intent Classifier | Find out what searchers want for each keyword. |
| Page Type Matcher | Pick the right page format for each keyword. |
| Competitor Gap Analyser | See keywords where a competitor beats you. |
| Cannibalisation Finder | Find queries where your own pages compete. |
| Seasonality Reader | Find peak months and plan content before them. |
| Brand vs Non-Brand Splitter | Split Search Console traffic into brand and non-brand. |
| Zero-Click Assessor | See which keywords Google answers without a click. |
| Keyword Priority Scorer | Rank keywords by value, ease and opportunity. |
Free SEO content tools (11)
Plan, write and refresh SEO content that answers searchers better than the pages ranking today: content briefs, readability, content gaps and content decay. Start with the free Content Brief Writer.
| Free tool | What it does |
|---|---|
| Keyword Density | Analyze keyword density in your content. |
| Content Brief Writer | Turn a keyword into a ready-to-write content brief. |
| Content Verdict Giver | Keep, improve, merge or rewrite? Get a clear verdict. |
| SERP Gap Finder | See what top-ranking pages cover that yours misses. |
| Content Refresher | Find outdated years, stats, names and broken links. |
| Anti-Slop Editor | Remove AI clichés, filler and robotic writing. |
| Originality Adder | Spot generic paragraphs and add real-world detail. |
| Topic Cluster Planner | Plan a pillar page and cluster pages for a topic. |
| Readability Checker | Flesch score, grade level and sentences to simplify. |
| Content Decay Finder | Find pages losing clicks and what to refresh first. |
| CTA Matcher | Check your calls to action match the page goal. |
Free on-page SEO tools (11)
Optimise the on-page SEO elements Google reads first: title tags, meta descriptions, headings, images, schema markup and featured snippets. Start with the free Title Tag Writer.
| Free tool | What it does |
|---|---|
| Meta Tag Generator | Generate SEO-friendly title, description and tags. |
| Schema Markup Generator | Generate structured data for rich results. |
| SERP Preview | See how your page looks in Google search. |
| Title Tag Writer | Get 10+ title tag ideas that fit in Google. |
| Meta Description Writer | Get 8+ meta descriptions of the ideal length. |
| Heading Structure Fixer | Check H1-H6 and get a fixed heading outline. |
| Image Optimiser | Audit image alt text, size, format and lazy-loading. |
| Internal Link Adder | Find pages that should link to your target page. |
| Above-the-Fold Auditor | Check what visitors see first, and how fast. |
| Featured Snippet Optimiser | Format your page to win the featured snippet. |
| Page Experience Checker | HTTPS, mobile, Core Web Vitals and popups in one check. |
Free E-E-A-T and authority tools (10)
Show Google and visitors the experience, expertise, authority and trust behind your website, and check your domain authority. Start with the free E-E-A-T Auditor.
| Free tool | What it does |
|---|---|
| Website Authority Checker | Check the authority score of any domain. |
| E-E-A-T Auditor | Score a page on Experience, Expertise, Authority, Trust. |
| Author Page Builder | Build an author bio page with Person schema. |
| First-Hand Evidence Finder | Find proof of real experience in your content. |
| Citation Checker | Check sources, broken citations and unsourced stats. |
| Brand Mention Finder | Find who mentions your brand and if they link. |
| Trust Signal Auditor | Check contact details, policies, reviews and security. |
| Review Presence Checker | See where your business has reviews and ratings. |
| YMYL Checker | Detect YMYL topics and the trust elements they need. |
| About Page Auditor | Audit your About page for trust and get a template. |
Free backlink and link building tools (10)
Check your backlinks, find broken links and link building opportunities, assess toxic links and spread link equity through internal links. Start with the free Backlink Checker.
| Free tool | What it does |
|---|---|
| Backlink Checker | Find the websites linking to your domain. |
| Broken Link Checker | Find broken links and dead pages on your site. |
| Backlink Gap Finder | Find sites that link to competitors but not to you. |
| Link Opportunity Qualifier | Score link prospects before you send outreach. |
| Unlinked Mention Converter | Turn brand mentions without links into backlinks. |
| Digital PR Angle Finder | Get news-driven PR angles, headlines and a pitch. |
| Internal Equity Router | Send internal link value to your money pages. |
| Competitor Link Velocity | Compare how fast you and a competitor gain links. |
| Toxic Link Assessor | Find risky backlinks and build a disavow file. |
| Link Report Writer | Turn a backlink export into a client-ready report. |
Free AI SEO tools (GEO) (10)
Optimise your website for AI search so ChatGPT, Perplexity, Google AI Overviews and Gemini can find, understand and cite your pages. Start with the free AI Crawler Checker.
| Free tool | What it does |
|---|---|
| Citability Scorer | See how easy your page is for AI engines to quote. |
| First-40-Words Rewriter | Rewrite your intro so it answers in the first 40 words. |
| Prompt Alignment Checker | Check whether a page answers the prompts users ask AI. |
| AI Crawler Checker | See which AI bots can crawl your site and which are blocked. |
| llms.txt Builder | Generate an llms.txt file from your sitemap in seconds. |
| Entity Clarity Checker | Check if search engines and AI know who your brand is. |
| Source Attribution Auditor | Find statistics and claims on a page that lack a source. |
| AI Share of Voice | Compare how often your brand shows up for AI prompts. |
| FAQ Coverage Checker | Find the questions your page does not answer yet. |
| GEO vs SEO Reconciler | Balance classic SEO and AI answer optimisation on a page. |
Free local SEO tools (10)
Rank higher on Google Maps and in local search, audit your Google Business Profile, fix NAP citations and manage international SEO. Start with the free Google Business Profile Auditor.
| Free tool | What it does |
|---|---|
| Google Business Profile Auditor | Audit your Google Maps listing against competitors. |
| NAP Consistency Checker | Check your name, address and phone match everywhere. |
| Local Pack Analyser | See who ranks in the Google Maps pack and why. |
| Review Velocity Tracker | Track new reviews per month and rating trends. |
| Service Area Mapper | Plan location × service landing pages and schema. |
| Multi-Location Auditor | Audit all your location pages in one go. |
| Hreflang Auditor | Validate hreflang tags and return links. |
| International Structure Reader | See how a site serves different countries and languages. |
| Translation Quality Checker | Compare a translated page with the original. |
| Currency & Format Checker | Check prices, dates and units suit your market. |
Free SEO reporting and rank tracking tools (12)
Build an SEO plan, check your Google rankings, record baselines, forecast traffic and create SEO reports for clients. Start with the free SEO & Marketing Plan Generator.
| Free tool | What it does |
|---|---|
| SEO & Marketing Plan Generator | Get a step-by-step SEO & marketing plan. |
| Google Rank Checker | Find your Google position for any keyword. |
| Yahoo Rank Checker | See where your site ranks on Yahoo search. |
| Search Engine Rank Checker | Compare your rank on Google, Bing, Yahoo & more. |
| SEO Diagnostician | Find out why traffic dropped or a page will not rank. |
| SEO Baseline Recorder | Save a snapshot of your site's key SEO facts. |
| SEO Change Logger | Keep a log of SEO changes and get GA4 annotations. |
| SEO Drift Watcher | Compare your site today with a saved SEO baseline. |
| Traffic Attributor | See where visitors and conversions come from (GA4). |
| SEO Forecast Builder | Forecast organic clicks and revenue from rankings. |
| Weekly SEO Report | Turn Search Console exports into a weekly update. |
| Client SEO Reporter | A printable, client-friendly monthly SEO report. |
How to choose the best free SEO tools
With so many free SEO tools online, use these five questions to pick the right ones:
- Is it really free? Many "free SEO checkers" show one number and then ask for a credit card. A free tool should give you the full result.
- Does it tell you what to fix? A score alone does not help. Look for tools that explain each problem and how to solve it.
- Is the data honest? Search volume, keyword difficulty and authority scores are estimates in every tool, free or paid. Good tools say so.
- Does it fit your goal? A local business needs local SEO tools first; a blog needs content and keyword tools; a large site needs technical SEO and crawl tools.
- Does it work with Google Search Console? Search Console is Google's own free SEO tool and the most accurate source of your clicks and rankings. The best free SEO tools work alongside it, for example by reading its CSV exports.
Best free SEO tools for your situation
You do not need all 107 tools. Pick the workflow that matches you and follow it in order.
Best free SEO tools for beginners
- Get a personal SEO plan with the free SEO & Marketing Plan Generator.
- Find keywords you can win with the free Keyword Research tool, then check their intent with the Search Intent Classifier.
- Find technical SEO problems with the free SEO Audit.
- Write better titles and descriptions with the Title Tag Writer and Meta Description Writer.
- Check your Google rankings every month with the free Google Rank Checker.
New to SEO? Read our guide to the best free SEO tools for beginners first.
Best free SEO tools for small businesses and local SEO
- Audit your Google listing with the free Google Business Profile Auditor.
- See who ranks above you on Google Maps with the Local Pack Analyser.
- Fix your business listings with the NAP Consistency Checker.
- Plan service and location pages with the Service Area Mapper.
- Track your Google reviews with the Review Velocity Tracker.
Based in the UAE? See our guide on how to rank on Google Maps in Dubai.
Best free SEO tools for bloggers and content writers
- Group your keyword list with the free Keyword Clusterer and plan a topic cluster.
- Brief every article with the free SEO Content Brief Writer.
- Edit drafts with the Anti-Slop Editor and Readability Checker.
- Find missing topics with the SERP Gap Finder.
- Find and update old posts with the Content Decay Finder and Content Refresher.
Best free AI SEO tools for ChatGPT and AI Overviews
- Make sure AI bots can read your website with the free AI Crawler Checker.
- Create an llms.txt file for your website.
- Make your pages easy to quote with the Citability Scorer and First-40-Words Rewriter.
- Measure your AI share of voice against competitors every month.
Full guide: how to get cited by ChatGPT, Perplexity and Google AI Overviews.
Best free SEO tools for agencies and freelancers
- Record a starting point for each client with the SEO Baseline Recorder.
- Run a full website SEO check with the SEO Audit, Crawl Budget Analyser and Duplicate Content Finder.
- Log every change with the SEO Change Logger and catch problems with the SEO Drift Watcher.
- Forecast SEO traffic with the SEO Forecast Builder.
- Send clear monthly SEO reports with the Weekly SEO Report and Client SEO Reporter.
Free SEO tools vs paid SEO software
| Our free SEO tools | Paid SEO software | |
|---|---|---|
| Cost | Free, no credit card | Monthly subscription |
| Best for | Small businesses, freelancers, beginners, quick SEO checks | Large sites, agencies with many clients, deep data needs |
| Data | Live checks of your pages, public data and your own Search Console / Analytics exports | Large historical databases of keywords and backlinks |
| Strength | Clear fixes in plain English, AI SEO and E-E-A-T checks | Scale, history and automation |
| Limits | Some estimates; large-site crawls are capped | Cost and learning curve |
For most small and medium websites, free SEO tools plus Google Search Console cover everything you need to rank. See how far they go in our comparison of free alternatives to Ahrefs and Semrush, and the step-by-step plan in how to rank higher on Google with free SEO tools.
Good to know: honest limits
- Live search data is limited. Tools that need live Google results have a small daily allowance. Most of them also let you enter competitor URLs yourself, so they keep working.
- Search Console and Analytics tools use your exports. Tools such as the Content Decay Finder and Weekly SEO Report read a CSV you download from Google. Nothing is connected to your Google account.
- Crawls are capped at around 40 to 50 pages per run, which suits small and medium sites. For very large sites, check important sections one at a time.
- Pages are read as raw HTML. Content that only appears after JavaScript runs may not be seen, which is also how many AI crawlers see your site.
Free SEO checklist using these tools
- Your website passes a free SEO audit with no critical errors.
- Your sitemap and robots.txt are valid, and important pages are indexed.
- Every important page targets one keyword with clear search intent.
- Title tags and meta descriptions are unique and the right length.
- Pages load fast and work well on mobile.
- There are no redirect chains, broken links or duplicate pages.
- Your content shows real experience and real authors (E-E-A-T).
- AI search bots can read your website.
- Local businesses have a complete Google Business Profile.
- You check your rankings and traffic every month.
Frequently asked questions
What is the best free SEO tool?
It depends on your goal. For a complete website SEO check, start with a free SEO audit tool; for keywords, a free keyword research tool; for local businesses, a Google Business Profile auditor; and for AI search, an AI crawler checker. Google Search Console is also essential and free.
Are there completely free SEO tools?
Yes. All 107 tools on this list are free to use with no credit card and no paid plan. A quick free signup unlocks all of them. Google Search Console, Google Analytics and Bing Webmaster Tools are also completely free.
What are the best free SEO tools for beginners?
Beginners should start with a free SEO plan generator, a keyword research tool, a free SEO audit, a title tag and meta description writer, and a Google rank checker. Together with Google Search Console, these cover the basics of SEO.
Can I do SEO for free?
Yes. You can do keyword research, fix technical SEO, optimise pages, build local listings and track rankings with free SEO tools. What SEO really needs is time and consistent work, not expensive software.
Can free SEO tools replace Ahrefs or Semrush?
For most small and medium websites, yes: free SEO tools plus Google Search Console cover audits, keywords, on-page SEO, backlinks and rank tracking. Paid SEO software is still better for large keyword and backlink databases and for managing many sites at scale.
What is the best free SEO checker for my website?
A free website SEO checker should crawl your pages, check titles, descriptions, headings, speed, mobile friendliness, indexing and links, and give you a fix list. Our free SEO Audit crawls your whole website and gives a downloadable PDF report.
Which free AI SEO tools help with ChatGPT and Google AI Overviews?
The AI SEO (GEO) category has 10 free tools, including the AI Crawler Checker, llms.txt Builder, Citability Scorer, Entity Clarity Checker and AI Share of Voice, to help your website get cited in AI answers.
Do these free SEO tools need Google Search Console access?
No. Tools that use Search Console or Google Analytics data read a CSV file you export yourself. Nothing is connected to your Google account, and you never share a password.
