15 Best Free SEO Tools in 2026: Keyword Research & More

You don't need an expensive SEO subscription to start improving your search visibility.

The right free SEO tools can help you find keywords, identify technical problems, monitor Google rankings, check backlinks, improve page speed, discover content ideas and understand how search engines see your website.

The catch is that "free" doesn't always mean completely free. Some tools are free forever, while others offer limited searches, limited crawls or a free tier designed to introduce you to a paid product.

So we've separated those options and focused on what each tool is actually useful for, rather than simply putting the biggest SEO platforms in a list.

The best free SEO tools at a glance

1. Google Search Console

Best for: Finding what Google already knows about your website

If you only set up one SEO tool, make it Google Search Console.

Search Console gives you first-party information about how your website performs in Google Search, including impressions, clicks, queries and average position. It also helps you investigate indexing problems and inspect individual URLs. Try Google Search Console →

What you can use it for

• Find keywords your pages already rank for
• See impressions and clicks
• Find pages losing search traffic
• Identify indexing problems
• Submit and monitor XML sitemaps
• Inspect individual URLs
• Monitor Core Web Vitals
• Review structured-data issues
• Find opportunities where pages have lots of impressions but few clicks

The SEO trick most beginners miss

Go to Performance → Search results and look for keywords where your page ranks around positions 8–20. These are often better optimization opportunities than starting from zero.

For example, if a page receives 8,000 impressions, 120 clicks and an average position of 12, you already have evidence that Google considers the page relevant. Instead of creating another article, improve the existing page.

Verdict: Essential.

2. Google Keyword Planner

Best for: Finding keyword ideas and estimating search demand

Google Keyword Planner is one of the most useful free starting points for keyword research. You can enter a topic or website and generate keyword ideas, then investigate search volume, competition and related terms. Open Google Keyword Planner →

It isn't designed specifically for organic SEO, so the data isn't a replacement for a dedicated SEO platform. But it is particularly useful when you're building an initial keyword list.

Use it to find

• Commercial keywords
• Related keyword ideas
• Long-tail variations
• Product/service searches
• Seasonal demand
• Keywords worth investigating further

Best workflow

Don't take every keyword Planner gives you. Instead, chain your tools together — Keyword Planner → Google Search → Search Console → competitor SERPs — to understand both demand and actual search intent.

Verdict: One of the best free keyword research starting points.

3. Screaming Frog SEO Spider

Best for: Technical SEO audits

Screaming Frog is one of the most useful free tools for finding technical SEO problems. The free version can crawl up to 500 URLs per crawl and identify issues involving broken links, redirects, page titles, meta descriptions and other on-site SEO elements. Try Screaming Frog SEO Spider →

Use it to find

• Broken links and 404 pages
• Redirect problems
• Missing or duplicate titles
• Missing meta descriptions
• Duplicate content signals
• Canonical issues
• Indexability problems
• Hreflang problems
• Internal linking issues

For a small business website or blog under 500 URLs, this is an exceptionally useful free audit tool.

Verdict: Essential for technical SEO.

4. Google PageSpeed Insights

Best for: Page speed and Core Web Vitals

PageSpeed Insights shows how a webpage performs and highlights opportunities to improve its performance. Try PageSpeed Insights → It's particularly useful for checking Largest Contentful Paint, Interaction to Next Paint, Cumulative Layout Shift, mobile and desktop performance, image optimization, JavaScript issues and render-blocking resources.

The important thing is not to obsess over getting a perfect score. Instead, look for problems that have a meaningful impact on real users. Slow scores often trace back to your hosting, too — our best web hosting guide covers faster options.

Verdict: Essential for technical SEO and page experience.

5. Ahrefs Free

Best for: Backlinks and SEO data for your own website

Ahrefs has expanded its free offering beyond the old Webmaster Tools positioning. Ahrefs Free provides access to selected Ahrefs capabilities, including Site Explorer, Site Audit and Web Analytics, with free access tied to verified websites and usage limits. Try Ahrefs' free tools →

Useful for

• Finding pages receiving organic traffic
• Understanding which keywords your site ranks for
• Reviewing backlinks and referring domains
• Auditing technical SEO
• Monitoring your site's SEO health

The free version isn't intended to replace a full Ahrefs subscription, but it is extremely useful for website owners who don't need large-scale competitor research.

Verdict: Excellent free addition to your SEO stack.

6. Google Trends

Best for: Finding growing topics before they become obvious

Keyword volume doesn't tell the entire story. Google Trends helps you understand whether interest in a topic is growing, declining, seasonal, regional or stable — which makes it particularly useful for content planning. Open Google Trends →

For example, instead of publishing an article simply because a keyword has search volume, compare several related topics and see which one is gaining momentum.

Great for

• Seasonal content
• News-driven topics
• Product categories
• Emerging search behaviour
• Comparing keyword popularity
• Finding geographic interest

Verdict: One of the most underused free SEO research tools.

7. Bing Webmaster Tools

Best for: Bing search performance and technical SEO

Google isn't the only search engine worth monitoring. Bing Webmaster Tools provides search performance information, keyword research, backlink insights, SEO reports and Site Scan. Try Bing Webmaster Tools →

The Site Scan feature crawls your site and categorizes discovered issues by severity. You can also see which queries and pages are receiving clicks and impressions from Bing.

Verdict: A no-brainer if you're serious about organic search beyond Google.

8. Google Rich Results Test

Best for: Testing structured data

If you use structured data on your pages, don't assume it is working correctly. Google's Rich Results Test lets you validate eligible structured-data implementations. Try the Rich Results Test →

Google explains that structured data can help it understand page content and make pages eligible for richer search appearances — but valid structured data doesn't guarantee that a rich result will actually appear.

Use it to check

• Whether Google can read your markup
• Structured-data errors
• Eligibility for supported rich results
• Problems before publishing changes

Verdict: Essential if your site uses structured data.

9. Ubersuggest

Best for: Simple keyword research

Ubersuggest remains useful for beginners who want a straightforward keyword research interface. It can help generate keyword ideas and provide SEO metrics without the complexity of a large enterprise SEO platform. Try Ubersuggest →

The downside is the free version is limited, so it's better suited to smaller research tasks than large-scale keyword analysis.

Use it for

• Keyword ideas and related terms
• Question keywords
• Basic SEO difficulty research
• Initial content research

Verdict: Good beginner option, but don't depend on it as your only keyword source.

10. AnswerThePublic

Best for: Finding questions people search

AnswerThePublic is particularly useful at the beginning of content research. Instead of starting with "What article should I write?" you can start with "What questions do people have about this topic?"

That can reveal how questions, why questions, comparison searches, problem-based searches and long-tail queries. Its free access is limited, so it works best as a brainstorming tool rather than a complete keyword database. Try AnswerThePublic →

Verdict: Great for content ideation.

11. AlsoAsked

Best for: Building question-based topic clusters

AlsoAsked takes a seed query and helps map related questions around it, which is particularly useful when you're planning a comprehensive article. Starting from a seed like "SEO tools," it branches into questions such as "What are the best free SEO tools?", "What is the best free keyword research tool?" and "How do I check my Google rankings?"

That structure can help you understand the questions surrounding a topic before creating your content. Try AlsoAsked →

Verdict: Excellent for content structure and topical research.

12. Google Analytics

Best for: Understanding what happens after organic visitors arrive

Search Console tells you what happens in Google Search. Google Analytics helps you understand what happens after someone reaches your website.

Google itself recommends using Search Console and Analytics together because they answer different questions: Search Console focuses on search performance, while Analytics provides information about visitor behaviour and interactions. If you'd rather not route visitor data through Google, privacy-friendly open-source options like Plausible and Umami cover the essentials.

Ranking higher is useful, but ultimately you want visitors to subscribe, buy, request a demo, contact you, sign up or read another page. Open Google Analytics →

Verdict: Essential for measuring SEO business value.

13. Semrush Free Tools

Best for: Getting a taste of advanced SEO research

Semrush offers a large collection of free tools covering keyword research, site auditing, rankings, backlinks and other SEO tasks. Its current free offering is particularly useful when you need more competitive research than Google's tools provide. Try Semrush's free tools →

The important distinction is that many capabilities have usage limits or belong to paid plans. That makes Semrush useful as part of a free stack rather than something you should treat as your only free SEO platform.

Verdict: Excellent supplementary tool.

14. Lighthouse

Best for: Technical performance diagnostics

Lighthouse is an open-source auditing tool that can analyze webpages for performance, accessibility, SEO and other technical considerations. It's particularly useful when you're already working inside Chrome DevTools and want a technical diagnostic rather than a keyword research platform. Learn about Lighthouse →

Use it alongside PageSpeed Insights rather than instead of it.

Verdict: Excellent technical companion.

15. Microsoft Clarity

Best for: Understanding why visitors aren't converting

Clarity isn't a traditional SEO tool — and that's exactly why it's useful. SEO shouldn't stop when somebody clicks your Google result. If organic visitors arrive and immediately struggle to navigate your page, your SEO traffic isn't doing much for the business. Try Microsoft Clarity →

Behaviour analytics can help you identify confusing sections, poor navigation, dead clicks, excessive scrolling, pages where users abandon and mobile UX problems. Use this information to improve the pages receiving organic traffic.

Verdict: Not a ranking tool, but extremely useful for turning SEO traffic into results.

The best free SEO stack for beginners

You don't need all 15 tools. In fact, using too many tools can make SEO unnecessarily complicated. If you're starting from scratch, this is the stack to use:

1. Google Search Console — find out what Google already knows about your website.
2. Google Keyword Planner — build your initial keyword list.
3. Google Trends — check whether your topics have growing or declining interest.
4. Screaming Frog — find technical problems.
5. PageSpeed Insights — check performance and Core Web Vitals.
6. Ahrefs Free — understand backlinks and your site's organic visibility.
7. Google Analytics — measure what visitors do after they arrive.

That's enough to run a surprisingly capable SEO operation without buying an expensive SEO subscription.

Which free SEO tool should you use?

How to use free SEO tools to actually increase traffic

The tools themselves won't increase your rankings — what you do with the information will. Here's a simple monthly workflow.

Week 1: Find opportunities

Open Search Console and export your top queries. Look for positions 8–20, high impressions, low CTR, and pages ranking for multiple related keywords. These pages already have search visibility, so they can often be more valuable to improve than creating another page from scratch.

Week 2: Fix technical problems

Run your website through Screaming Frog, PageSpeed Insights, Search Console and Bing Webmaster Tools. Prioritize problems that affect crawling, indexing, important pages, internal links and page experience. Don't spend hours fixing low-impact warnings while important pages have fundamental problems.

Week 3: Improve content

Use Google Keyword Planner, Google Trends, AnswerThePublic, AlsoAsked and Search Console, then improve existing pages. Add information that genuinely satisfies the search intent — don't simply repeat the keyword 20 times.

Week 4: Measure

Return to Search Console and Analytics. Check clicks, impressions, CTR, rankings, organic sessions, conversions and the pages generating organic traffic. Then decide what to improve next. SEO works better as a continuous process than as a one-time optimization project.

Are free SEO tools enough?

For many websites, yes — at least in the beginning. A small business, blogger, startup or new website can cover a large portion of its SEO workflow with free tools.

You don't necessarily need a $100+ monthly SEO platform to find keywords, monitor rankings, diagnose indexing issues, crawl a small website, check page speed, analyze backlinks, find content ideas or monitor organic traffic.

Paid tools become more valuable when you need scale — for example, large keyword databases, extensive competitor research, historical data, large crawls, automated reporting or agency workflows.

The goal isn't to own the most SEO software. It's to identify the right problem and use the simplest tool that can solve it.

Free vs freemium SEO tools

One thing to watch out for when comparing SEO tools is the definition of free.

Truly free — Google Search Console, Google Trends, PageSpeed Insights and Rich Results Test.

Free with limits — Screaming Frog, Ahrefs Free, Ubersuggest, Semrush's free tools, AnswerThePublic and AlsoAsked.

The important question isn't "Is this tool free?" It's "Can I accomplish what I need without paying?" That's the comparison that actually matters.

Final verdict

If you're building an SEO workflow from zero, don't start by subscribing to five different platforms. Start with Google Search Console + Google Keyword Planner + Screaming Frog + PageSpeed Insights + Google Trends + Ahrefs Free.

Add AnswerThePublic or AlsoAsked when you need content ideas, and bring in a larger platform such as Semrush or Ahrefs when your research needs become more advanced — our best SEO tools guide compares the paid platforms head-to-head.

The best free SEO tool isn't necessarily the one with the biggest keyword database. It's the one that helps you find a problem, understand why it exists, and decide what to do next.

Related reading

• Best SEO tools — the paid platforms compared (Semrush, Ahrefs and more)
• Best email marketing software
• Best web hosting
• Best free website builders

Frequently asked questions