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The 44 Best Free SEO Tools (Tested & Rated)

Looking for Free and Useful SEO Tools? Then you can now complete your search.

We asked more than 10,000 SEO specialists in our Facebook group and our 53,000 followers on Twitter for their favorite tools.

We then tried and tested each of the suggested tools to choose the best ones and then categorized them.

If you are on a budget, this list should be very helpful to you.

These are the categories:

These tools help you research topics that your target audience is looking for.

1. Answer The Public

Answer the Public provides questions from Google's autocomplete results (and some other types of searches). This is very helpful for generating ideas about specific content.

Similar alternatives:Keyword Sheeter, Keywordtool.io

2. Google Keyword Planner

Google Keyword Planner is Google's keyword research tool. Use it to generate keyword ideas for up to ten terms or ideas based on a website or URL.

Although the Keyword Planner has some limitations, such as the lack of absolute search volume, it is helpful for finding keyword ideas that traditional keyword research tools cannot find.

Recommended post: How to Use Google Keyword Planner (A Practical Guide)

3. Ahrefs Keyword Generator

Ahrefs Keyword Generator provides the top 100 keyword ideas for every term or phrase from our database of more than ten billion keywords in 170+ countries. The tool shows the estimated monthly search volume for each suggestion and the Keyword Difficulty (KD) score for the first ten ideas.

You can also see the top 50 questions on the topic.

4. Google Trends

Google Trends shows the popularity of a topic over time. Use the tool to find trending topics and avoid creating content for topics of decreasing interest.

Recommended post: How to Use Google Trends for Keyword Research: 7 Effective Ways

5. Keyworddit

Keyworddit provides keywords from Reddit. Enter a subreddit (e.g. / r / bigSEO) and the tool will generate a keyword list with the estimated monthly search volume.

This is helpful for finding topics that your target audience is interested in that you weren't even aware of.

Here are some keywords for the r / entrepreneur subreddit:

6. AlsoAsked.com

AlsoAsked.com collects data from Google's People Also Ask (PAA) boxes. This allows you to find subtopics and questions that may be worth answering in a post.

For example, if you're writing a post on “How to clean a coffee maker with vinegar”, you might want to answer the following questions:

  • How Much Vinegar Should I Use?
  • How often should you run vinegar through the coffee maker?
  • Is Cleansing Vinegar Better Than Regular Vinegar?

7. Keyword surfers

Keyword Surfer is a free Chrome extension that shows the estimated global monthly search volume for every search on Google. You will also see similar keywords and related terms in the sidebar.

This simplifies your keyword research and competitor analysis because you don't have to leave the search results page.

These tools will help you optimize your pages so that you rank better in search results.

8. Rank Math

Rank Math is a WordPress SEO plugin that is helpful for onpage and technical SEO.

Here are a few things the tool can be helpful for:

Similar alternatives: Yoast SEO, All in One SEO Pack, and The SEO Framework.

9. SERPSim

SERPSim shows you how your website appears in Google's search results. All you have to do is enter your desired title, meta description and URL.

SERPSim also indicates if the title or the meta description are too long. You should fix these issues to avoid shortening your information in search results.

Similar alternative: Portents SERP Preview Tool

10. Google's Rich Results Test

Google's Rich Results Testing Tool checks the structured markup on your page to see if it is suitable for the rich snippets in the search results.

Recommended post: Rich Snippets: What Are They And How Can You Use Them?

11. Merkles Schema Markup Generator

Merkle's Schema Markup Generator generates structured data markups in JSON-LD format.

Simply select the type of schema markup you want to generate (e.g. Local Business, FAQ, Product, etc.), fill out the form, and copy and paste the generated markup into your page.

You can then check the suitability of each schema markup with Google’s Structured Data Testing Tool.

Recommended post: What is structured data? And why should you implement this?

12. Ahrefs SEO Toolbar

The Ahrefs SEO Toolbar is a Chrome and Firefox Extension that displays Ahrefs SEO key figures directly in the browser.

It also generates an on-page SEO report for the visited page with important aspects such as page title, meta description, word count, headers, hreflang tags, canonicals, OG tags and more.

In addition, the following functionality is available:

And many more functions.

Recommended post: Ahrefs SEO Toolbar - What's New?

These tools will help generate more links for your page.

13. Ahrefs backlink checker

Ahrefs Backlink Checker shows the top 100 backlinks to any website or page.

It also shows the five most frequently linked pages, the most common anchor texts, the total number of backlinks and referring domains, and our protected domain rating (DR) and URL rating (UR).

It is based on the same industry leading database as our premium tool. Some key figures are:

  • 16 trillion existing links
  • 170 million unique domains
  • 7 billion pages crawled every day

14. Hunter.io

Hunter.io finds email addresses associated with a website. The tool is free for up to 50 inquiries per month.

You can also use the tool to find the email address for a specific person. Just enter the domain name and the name of the person.

Install the Chrome Extension for easy access to the tool or use the Google Sheets add-on.

Similar alternatives: FindThat.Email, Voila Norbert

Recommended post: 8 actionable ways to research any email address

15. Ahrefs Broken Link Checker

Ahrefs Broken Link Checker shows the top ten broken inbound and external links for any domain, subdomain or URL. You can use the tool to:

  • Identify faulty link building opportunities
  • Finding broken external links on your site so that you can fix them and improve the user experience
  • Identify faulty pages on your website to regain “link authority”

If you prefer Chrome Extensions to spontaneously check broken links, you can use LinkMiner or Check My Links for this.

16. Scraper

Scraper is a Chrome extension that allows you to pull data from any website. The tool can be used for a variety of purposes, such as scraping possible link cooperation partners from Google's search results pages.

Recommended post: 6 Real-World Web Scraping Hacks for White Hat Marketers

17. Help a Reporter (HARO)

HARO is a free service that connects news sources with journalists looking for specialist knowledge.

It works like this: Journalists have questions. You need experts to answer these. HARO sends emails with these questions to subscribers. Anyone can reply to these e-mails and thus possibly become a source for the publication.

Regardless of whether you have just set up a website or have an established website, it is always a good way to generate reputable links.

SourceBottle offers a similar service.

Learn more about how to use HARO efficiently in the following video:


18. Streak

Streak is a freemium Chrome Extension that turns your Gmail inbox into customer relationship management software (CRM).

With Streak you can, among other things, schedule and send personalized mass emails and see when someone has opened your email. It's a great tool for blogger outreach.

These tools help improve the technical aspects of your website.

19. Google Search Console

Google Search Console (previously Google Webmaster Tools) is a free service provided by Google that helps you monitor and improve the appearance of your website in Google's search results.

Use this tool to find technical errors, submit sitemaps, identify problems with structured data and for other functions.

Bing and Yandex have their own versions of this tool.

Recommended post: How to Use Google Search Console and Improve SEO (A Beginner's Guide)

20. Screaming Frog

Screaming Frog is a desktop-based website crawler. It is one of the most popular tools for analyzing and reviewing technical and on-page SEO problems.

With the free version, you can crawl up to 500 URLs.

21. Cloudflare

Cloudflare is a free global CDN. Not only can it improve your site's loading time, but it can also protect it from harmful attacks.

Recommended post: What is a content delivery network (CDN)?

22. GTMetrix

GTMetrix analyzes the loading time of your website. In addition to a performance score, actionable recommendations are also given so that pages load faster.

Similar alternatives: Google PageSpeed ​​Insights, Pingdom, WebPageTest.

Recommended post: How to Improve Your Website Loading Time From Start To Finish (An Advanced Guide)

23. Google's Mobile-Friendly Test

Google's Mobile-Friendly Test checks how easily a visitor can use your site on a mobile device. It also identifies specific issues related to usability on mobile devices, such as text sizes that are too small, the use of incompatible plugins, etc.

Thanks to Google's move towards mobile-first indexing, a responsive website is more important than ever.

24. Smush

Smush is a free WordPress plugin for compressing, optimizing and resizing images. Use it to ensure that your website loads quickly.

Note that users with free access can only optimize 50 images at a time. You have to keep clicking the “Resume” button to optimize the next 50 images.

Similar alternative: Shortpixel (free for up to 200 images per month)

25. Where Goes?

Where Goes? is a straightforward tool to check redirect paths for any URL.

Paste a URL into the tool and it will show the redirect type (e.g. 301, 302, etc.) and the number of redirects in the chain. You should keep the number of unnecessary redirects as low as possible, as it increases the loading time of your website and leads to a poor user experience.

Although Google has confirmed that 3xx redirects no longer weaken PageRank, too many redirects can lead to wasted crawl capacity.

If you are looking for an SEO Chrome Extension with the same functionality, you can use Ahrefs SEO Toolbar.

Recommended post: 301 Redirects for SEO: Everything You Need to Know

26. Robots.txt generator

The Robots.txt generator generates a correctly formatted robots.txt file in seconds.

Users with special needs can use the custom option to define individual rules for different bots, sub-directories, etc.

Recommended post: Robots.txt and SEO: everything you need to know

27. HEADMasterSEO

HeadmasterSEO is a simple tool to check the status codes for a list of URLs collected. The free version allows checking of up to 500 URLs.

If you prefer a web-based application and only want to check up to 100 URLs, try HTTPstatus.io.

28. Keep-alive Validation SEO Tool

Use this tool to check whether permanent connections are activated or deactivated on your websites.

29. Chrome DevTools

The Chrome DevTool is Chrome's built-in website troubleshooting tool. Use it to fix problems with loading times, improve website rendering and check other aspects.

When it comes to technical SEO, it has endless features.

30. View Rendered Source

View Rendered Source is a Chrome Extension that shows how the browser renders the original HTML of the page into the DOM, including modifications using JavaScript.

It's a great tool for checking and solving problems with JavaScript.

31. Hreflang Tag Generator

Generate hreflang tags to set the language and geographic targeting of a website. Enter the relevant URLs, select your desired country and language and click on “generate”.

Recommended post: Hreflang: The simple guide for beginners

Tools for checking the ranking

These tools help you check rankings for your preferred location.

32. Ahrefs SERP Checker

Ahrefs SERP Checker shows the top 10 rankings for each keyword in more than 170 countries.

For the first three search results you will also see important SEO metrics, such as the number of referring domains, the number of backlinks, estimated search traffic and more.

33. Local Search Results Checker

BrightLocals Local Search Results Checker shows you search results for every location - down to the big, small town and zip code level.

Depending on the country, you can even choose the language you want.

Similar alternative: Valentin.app.

34. Mobile SERP test

The MobileMoxie SERPerator Tool allows you to check mobile rankings for any location, including address, city, state or zip code.

You can even compare mobile device models as some SEO specialists believe that Google shows different results for iOS and Android.

These tools help measure and analyze data on your website.

35. Google Analytics

Google Analytics is probably the most popular analytics tool out there. It gives you a wealth of data that you can use to improve every aspect of your marketing.

Bing's version of this is Bing Webmaster Tools, and Yandex has its own tool called Yandex Metrica.

Recommended post: How to use Google Analytics to improve your SEO performance

36. Keyword Hero

Keyword Hero strives to provide the “(not provided)” data within Google Analytics with real search keywords.

The free membership allows you to analyze up to 10 URLs and 2000 sessions per month.

37. Google Data Studio

You can use Google Data Studio to create interactive dashboards and reports.

It's built into Google's suite of tools, making it easy to aggregate data from Google Search Console, Google Analytics, etc.

38. Ahrefs WordPress SEO Plugin