17 Best Free SEO Tools You Should Use to Grow Traffic in 2021

Best Free SEO Tools You Should Use to Grow Traffic

Looking for the best free SEO tools to get content ideas, fix SEO mistakes, and others?

Search engine optimization is a crucial thing to optimize your website for search engines and bring massive traffic from them. Sometimes, it is a costly process and you may need to invest a huge amount to make it work.

Luckily, there are several free SEO tools available on the web to handle the job. They will help you to do keyword research, run SEO analysis, monitor audience, and much more. Use them efficiently to optimize your pages and grow traffic in 2021.

Let’s get started,

1. Answer The Public

Answer The Public

Answer The Public is a great tool for keyword research. Enter one or two keywords in the search box and choose your target audience. It will show you Google autocomplete queries for the keyword in a visual chart and organize them into different sections like questions, prepositions, comparisons, and related phrases. You can also download the results in CSV format.

Answer The Public is priced at $79/month in annual plans. But you can use it for free with limitations.

2. GTMetrix


GTMterix is one of the best free SEO tools for speed optimization. It will access your website from different server locations to determine its speed, loading time, total size, etc. After analyzing your content and images, GTMetrix generates reports with actionable recommendations to improve your page performance and traffic.

3. Google Keyword Planner

Google Keyword Planner

Google Keyword Planner is another free keyword research tool for online publishers. Enter your queries and filter options to detect the most profitable keywords that match your request. It will display results along with average monthly searches for the keyword from the chosen location, competition level, and related keywords.

4. Semrush


Semrush is the #1 SEO tool in the market to do keyword research, competitor analysis, SEO audit, and backlink analysis. Whether you are a business owner or a blogger, it is the best place to find growth opportunities and traffic.

SEMrush’s pricing plans start at $99.95/mo. But you can use it for free with limitations.

5. Rank Math SEO

Rank Math SEO

Rank Math SEO is a powerful WordPress SEO plugin from MyThemeShop. It is free and offers several premium-quality functionalities from one place. The features include on-page SEO, local SEO, schema markup, XML sitemaps, redirections, image optimization, and much more.

Free SEO analysis

Rank Math also allows you to run an SEO audit of your site for free. So you can find common SEO mistakes and fix them easily using Rank Math’s audit reports. For that, plugin installation is not mandatory.

6. SEOquake


SEOquake is a free Chrome extension to access key SEO metrics of any website. It serves metrics like website ranking, Google & Bing index, SEMrush rank, SEMrush traffic, Social media likes, internal and external links, keyword density, and many others.

Free SEO audit is another advantage of SEOquake extension to run a thorough checkup of the website and current page.

7. Google Search Console

Google Search Console

Google Search Console is one of the popular free SEO tools for web publishers to analyze their page performance and slow speed issues. Submit your post URLs and Sitemap to Google to make sure that they are search-engine friendly.

Monitor your individual pages to detect if they have any slow speed issues on desktop and mobile. Follow Google webmaster guidance to boost your page speed and traffic. Visit Search Console’s Performance tab to find the most popular keywords that bring traffic to your pages, most visited pages, top traffic locations, clicks you receive from SERPs each day, etc.

8. Bing Webmaster Tools

Bing Webmaster Tools

Bing Webmaster is another free SEO tool to manage your search engine appearance. Submit your post URLs and Sitemaps to update Bing with the latest changes in your site. It allows you to geo-target users based on domain, sub-domains, directories, and pages.

Keyword research is a major part of Bing webmaster tools. Enter your keywords and set a target location to get topic ideas. It can also analyze your pages to know whatever improvements are needed to get love from search engines.

9. TinyPNG


Large-sized images may deterior your page performance and affect SEO seriously. So you should optimize them properly either using a WordPress plugin or an online image compression tool.

TinyPNG is a simple tool to compress your images in one-click. It is free and supports PNG, JPG files with up to 5 MB size.

10. Ahrefs Free Backlink Checker

Ahrefs backlink checker

Ahrefs Free Backlink checker is one of the best free SEO tools for backlink analysis. It lets you spy on competitor’s backlinks and steals their link building strategies.

Ahrefs provides powerful link metrics of any website with the domain/URL rating of the referring domain, anchor, link type, top pages from the site (sorted by the number of backlinks they have), referring domain type, etc.

11. Google Search

Google Search

Do you know that Google search works like a free keyword research tool? Open Google search in Incognito mode and enter your query in the text box. Google will suggest relevant keywords in the form of auto-complete entries as you type in the box. The incognito mode ensures that your browsing history doesn’t influence the suggestions anyway.

12. Google Trends

Google Trends

Google Trends is another best of free SEO tools to analyze the popularity of a keyword. Search a query and set a target location to view search trends for the past 12 months. Filter results by time range, categories, and search type to find terms that are still popular and match your interests.

13. Check My Links

Check My links

Check My Links is one of the simple free SEO tools to find and fix broken links. It is a Chrome extension that lets you detect broken links on any webpage easily. It will highlight active links in green color and broken links in red.

14. Detailed


Detailed shows you the top 50 websites in different niches like tech, travel, fashion, finance, health, and others. It tracks all those websites for the latest backlinks, link texts,  and tweet mentions. Scroll through the reports to get new topic ideas and explore new link building opportunities.

15. Mobile-Friendly Test

Think with Google

Is your website mobile-friendly? How fast it loads on mobiles and tablets? Inspect it with Google to know if your theme is mobile-optimized and offers a better viewing experience to smartphone users. Follow Google’s optimization tips to improve your page speed and traffic.

16. Plagiarism Checker

Plagiarism Checker

Do you want to ensure that if the content is fresh and not published anywhere on the web? Plagiarism Checker is a free tool to detect duplicate contents. Copy-paste your text or upload the document or enter a webpage URL to run a free audit and rewrite the content if needed.

17. Google Analytics

Google Analytics

Google Analytics is one of the essential free SEO tools to monitor your audience. It helps you to identify the target audience, most popular posts, top referral channels, etc. Track your page performance and campaign statistics to make changes in the strategies accordingly.

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