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25 Best Free SEO WordPress Plugins & Tools (Most Important 2021)

Updated: April 02, 2021 By: Dessign Team

Best Free SEO WordPress Plugins

If you looking for the Best Free or Premium SEO WordPress Plugins or Tools? We put a list that will help you pick the best and most affordable SEO Plugin for your WordPress Website in 2021. Most of the SEO plugins are freemium which means if you like some of the premium features you can upgrade to the premium version, but if you ok with the basic features then you can keep the free version with updates and basic support. If you need a well optimized free SEO themes for your next website we have a great collection. Best Free Google Analytics Plugins for WordPress to track your visitors and learn about their journey.

What to Look for in a Free SEO Plugin?

  1. Easy to Install and Activate
  2. Add Basic SEO Features Automatically
  3. Fully Responsive (Mobile Friendly) & SEO optimized
  4. Many Features and Updates

Best SEO WordPress Plugins & Tools to help you optimize your website for 2021

1. SEO 2020 by Squirrly (Smart Strategy)

SEO 2020 by Squirrly (Smart Strategy)

Active Installations: 60,000+ | Rating: 4 out of 5 stars (400+ Reviews) | Performance: 97% |
Updates & Support: Yes | WordPress: 5.3+

Upgrade your WordPress with Excellent SEO. Guided by the A.I.-based Private SEO Consultant. All SEO Tools Included for Free.

Your search traffic can finally increase and you now have the means to make your Internet Marketing Dreams come true!

The only WordPress SEO plugin that offers Assisted SEO and all the on-page tools you need to take your site from “Never Found” to Always Found on search engines like Google and Bing.

The latest release of Squirrly SEO comes with an innovative feature called Focus Pages, which is basically an Assistant that maps the road to better rankings for each one of your pages.
The system looks at your pages the same way Google does when analyzing them and deciding how high to place them in Search Results.

2. SEMrush – 7 Days Free Trial

semrush

SEMrush is an online visibility management and content marketing SEO SaaS platform. Today, we help more than 6 million marketers all over the world do their job more effectively and deliver superior results We are proud of our work and our results. By accumulating and processing large volumes of data, we aim to provide our clients with the best product, which is now used by over 6 million marketing specialists worldwide.

3. WordPress SEO Plugin – Rank Math

rank math
Rank Math SEO FREE

Active Installations: 600,000+ | Rating: 5 out of 5 stars (2500+ Reviews) | Performance: 99% | Updates & Support: Yes | WordPress: 5.3+

Its host of intelligent features brings SEO capabilities in your hands that were previously out of reach. The smart automation features give you the power of an entire SEO team with just a few clicks. A well thought out design, powerful features, and years of development by the MyThemeShop squad make Rank Math a game-changing SEO plugin that will level the SEO playing field in your favor.

SEO might be the best and most consistent source of traffic for one’s website, but it’s not without its quirks. The constant process of optimizing your posts can sometimes take more time than actually writing the content. If you always feel that you can do more on the SEO front for your website but don’t have the time, *then Rank Math is what you’re looking for.

Rank Math SEO YouTube Video

See the features which are exclusive to Rank Math SEO plugin and to understand why Rank Math is possibly the Best SEO Plugin for WordPress.

4. All in One SEO

all in one seo

Active Installations: 2+ Million| Rating: 5 out of 5 stars (1200+ Reviews) | Performance: 98% | Updates & Support: Yes | WordPress: 5.3+

Use All in One SEO Pack to optimize your WordPress site for SEO. It’s easy and works out of the box for beginners, and has advanced features and an API for developers.

5. Yoast SEO

yoast seo

Active Installations: 5+ Million | Rating: 5 out of 5 stars (2500+ Reviews) | Performance: 99% | Updates & Support: Yes | WordPress: 5.6+

WordPress out of the box is already technically quite a good platform for SEO. This was true when Joost wrote his original WordPress SEO article in 2008 (updated every few months) and it’s still true today, but that doesn’t mean you can’t improve it further!

Need some help with your search engine optimization? Need an SEO plugin that helps you reach for the stars? Yoast SEO is the original WordPress SEO plugin since 2008. It is the favorite tool of millions of users, ranging from the bakery around the corner to some of the most popular sites on the planet. With Yoast SEO, you get a solid toolset that helps you aim for that number one spot in the search results. Yoast: SEO for everyone.

Checkout more Yoast Youtube Videos to learn more

Yoast SEO does everything in its power to please both visitors and search engine spiders. How? Below you’ll find a small sampling of the powers of Yoast SEO:

6. Google Search Console

Improve your performance on Google Search

Improve your performance on Google Search

Search Console tools and reports help you measure your site's Search traffic and performance, fix issues, and make your site shine in Google Search results See which queries bring users to your site. Analyze your site's impressions, clicks, and position on Google Search.

Receive email alerts when Google identifies issues on your site. See which URLs are affected by these issues and tell Google when you’ve fixed them.

7. Google Analytics

Google Analytics is a web analytics service offered by Google that tracks and reports website traffic, currently as a platform inside the Google Marketing Platform brand.

Analytics makes it easy to understand how your site and app users are engaging with your content, so you know what’s working and what’s not. See how people are interacting with your sites and apps and the role that different channels play by viewing robust reports and dashboards. You can even connect systems used to measure CRM, points of sale, and other touchpoints with your customers for a more complete view.

8. Google Keyword Planner

google keyword planner

The right keywords can get your ad in front of the right customers, and Google Ads Keyword Planner is here to help.

Discover new keywords

Search for words or phrases related to your products or services. Our keyword research tool will help you find the keywords that are most relevant for your business.

Research keywords

Our keyword research tool gives you insight into how often certain words are searched and how those searches have changed over time. This can help you narrow your keyword list down to the ones you really want.

9. Ahref

href

Ahrefs is a multinational team headquartered in Singapore. We are a lean start-up that values making meaningful and easy-to-use products. We shift things fast to give our customers what matters most to them, and to keep us ahead of the game.

Our motto is “First do it, then do it right, then do it better.” When launched, Site Explorer disrupted the stagnant field of backlink analysis and kick-started a new round of competition among SEO tool providers. It quickly became one of the world's best backlink analysis tools. Ahref is all is one SEO Tool Set.

10. SEMrush SEO Writing Assistant

Active Installations: 10,000+ | Rating: 3 out of 5 stars (10+ Reviews) | Performance: 95% |
Updates & Support: Yes | WordPress: 5.3+

The SEMrush SEO Writing Assistant provides instant recommendations for content optimization based on the qualities of Google’s top 10-ranking pages for your given keywords in a given location. Content professionals, bloggers and marketing experts can check if their texts or the texts of external writers meet various content-quality requirements in just a few clicks.

  • Overall score – checks the article’s general quality calculated according to metrics such as readability, text length, and target keywords.
  • Readability score – evaluates your text’s difficulty based on the recommended Flesch-Kincaid reading-ease score. You will get recommendations for sentences and words that need improvement.
  • Target keywords – shows recommendations regarding the given keywords, their volume and their difficulty.
  • Recommended keywords – shows semantically related keywords, that should also be added to your text.
  • Tone of voice – make sure that your writing is consistent with the desired level of formality.
  • Plagiarism – validate that your writer has submitted original content.
  • Linking – check your links for possible errors and problems.

11. WP Rocket

wp rocket

Fond of performance, they were frustrated with every existing plugin they installed. “We thought that user experience was not optimal. There are a lot of features and the set up takes too much time even for an expert.”

In 2013, they developed their own plugin WP Rocket: available for all and without the need to have technical skills in Web Performance to be able to install it and to get a fast website.

12. MOZ – All in One SEO Toolset

mom

An amazing family of SEO solutions for every need.

We build best-in-class SEO software for every situation, from our all-in-one SEO platform to tools for local SEO, enterprise SERP analytics, and a powerful API.

Moz was founded by Rand Fishkin and Gillian Muessig in 2004. It was called SEOmoz, and started as a blog and an online community where some of the world's first SEO experts shared their research and ideas. We launched the Beginner's Guide to SEO and our first Search Ranking Factors study, and that hub of industry expertise transformed into a small consulting firm and led us to create some of our first SEO tools.

13. Autoptimize

Autoptimize

Autoptimize makes optimizing your site really easy. It can aggregate, minify and cache scripts and styles, injects CSS in the page head by default but can also inline critical CSS and defer the aggregated full CSS, moves and defers scripts to the footer and minifies HTML. You can optimize and lazy-load images, optimize Google Fonts, async non-aggregated JavaScript, remove WordPress core emoji cruft and more. As such it can improve your site’s performance even when already on HTTP/2! There is extensive API available to enable you to tailor Autoptimize to each and every site’s specific needs.
If you consider performance important, you really should use one of the many caching plugins to do page caching. Some good candidates to complement Autoptimize that way are e.g. Speed Booster packKeyCDN’s Cache EnablerWP Super Cache or if you use Cloudflare WP Cloudflare Super Page Cache.

broken link checker

This plugin will monitor your blog looking for broken links and let you know if any are found.

Basic Usage

Once installed, the plugin will begin parsing your posts, bookmarks (AKA blogroll) and other content and looking for links. Depending on the size of your site this can take from a few minutes up to an hour or more. When parsing is complete, the plugin will start checking each link to see if it works. Again, how long this takes depends on how big your site is and how many links there are. You can monitor the progress and tweak various link checking options in Settings -> Link Checker.

The broken links, if any are found, will show up in a new tab of the WP admin panel – Tools -> Broken Links. A notification will also appear in the “Broken Link Checker” widget on the Dashboard. To save display space, you can keep the widget closed and configure it to expand automatically when problematic links are detected. E-mail notifications need to be enabled separately (in Settings -> Link Checker).

The “Broken Links” tab will by default display a list of broken links that have been detected so far. However, you can use the links on that page to view redirects or see a listing of all links – working or not – instead. You can also create new link filters by performing a search and clicking the “Create Custom Filter” button. For example, this can be used to create a filter that only shows comment links.

15. Schema – All In One Schema Rich Snippets

schema

Get eye catching results in search engines with the most popular schema markup plugin. Easy implementation of schema types like Review, Events, Recipes, Article, Products, Services etc

WHAT IS A RICH SNIPPET?

It is basically a short summary of your page in the search results of Google, Yahoo, Bing and sometimes in the News feed of Facebook in nice format with star ratings, author photo, image, etc.
See Examples of Rich Snippets Here.

HOW DOES A RICH SNIPPET HELP?

  • It gives search engines only the important & precise information to display in search result snippets.
  • Rich Snippets are very interactive (photos, star ratings, price, author, etc.) to let you stand out from competition
  • See what difference it makes in CTR (Click Through Rate)
  • Helps you rank higher in search results
  • Helps Facebook display proper information when users share your links on Facebook
    Curious, how does this plugin work?

16. SEO Quake

seo quake

Check any webpage for a huge selection of SEO parameters on the fly, with
the free SEOquake browser extension.

  • Conduct on-page SEO audit in a flash
  • Examine internal and external links
  • Compare domains and URLs in real time
  • Export all data into a file

Perform a thorough SEO analysis of any webpage with nothing but your browser at hand. All it takes is one click and one second. No cumbersome interface involved — adjust SEOquake to only display what you need when you need it.
Get all the details behind both the internal and external links on any webpage, including URLs, anchor texts and link types.
Check your webpage’s SEO health with a real-time diagnosis feature that helps you identify and fix various optimization issues that occur with modern search engines.
Compare multiple domains and URLs for a variety of SEO parameters on the go and export your results into a dynamic and fully adjustable report.

17. SEO Press

seo press

SEOPress is a powerful plugin to optimize your SEO, boost your traffic, improve social sharing, build custom HTML and XML Sitemaps, create optimized breadcrumbs, add schemas / Google Structured data types, manage redirections 301 and so much more.

No advertising, no footprints, white label, in backend AND frontend
Content analysis to help you write search-engine optimized content
Import your post and term metadatas from other plugins in 1 click

18. SEO Ultimate

seo unlimited
  • Out-of-the-box functionality puts your post titles at the beginning of the <title> tag for improved keyword SEO.
  • Easily override the entire <title> tag contents for any individual post, page, attachment, category, post tag, or post format archive on your blog. Also supports custom post types and custom taxonomies.

19. Really Simple SSL

simple SSL

Really Simple SSL automatically detects your settings and configures your website to run over https.
To keep it lightweight, the options are kept to a minimum. The entire site will move to SSL.

THREE SIMPLE STEPS FOR SETUP:

  • Get an SSL certificate (can’t do that for you, sorry).
  • Activate this plugin
  • Enable SSL with one click

Always backup before you go! If you do not have a sound backup policy, start having one! See our recommendations.

Any code suggestions? We’re on GitHub as well!

20. SEO Framework

seo framework

Easy SEO for beginners, an awesome API for experts. WordPress SEO for everyone.

An accessible, unbranded and extremely fast SEO solution for any WordPress website.

The complete SEO solution for your WordPress website.

The SEO Framework is a reliable, accessible, unbranded, fully automated, and rigorously optimized SEO plugin for your website.

Without ads, distractions, and nonsensical functionality, this plugin delivers a time-saving SEO solution that truly helps your website rank.

he SEO Framework is unbranded! This means that we don’t even put the name “The SEO Framework” anywhere within the WordPress interface, aside from the plugin activation page. This plugin makes excellent use of the default WordPress interface elements, like as if this plugin is part of WordPress. No ads, no nags. The small and hidden HTML comments can easily be disabled with the use of a filter or extension.

Nobody has to know about the tools you’ve used to create your or someone else’s website. A clean interface, for everyone.

21. ShortPixel Image Optimizer

shortpixel

A freemium easy to use, comprehensive, stable and frequently updated image compression plugin supported by the friendly team that created it. ?

Increase your website’s SEO ranking, number of visitors and ultimately your sales by optimizing any image or PDF document on your website.
ShortPixel is an easy to use, lightweight, install-and-forget-about-it image optimization plugin that can compress all your past images and PDF documents with a single click. New images are automatically resized/rescaled and optimized on the fly, in the background. It’s also compatible with any gallery, slider or ecommerce plugin.

Short Pixel uses minimal resources and works well with any shared, cloud, VPS or dedicated web hosting. It can optimize any image you have on your website even the images that aren’t listed in Media Library like those in galleries like NextGENModula or added directly via FTP!

22. Redirection

redirection

Redirection is the most popular redirect manager for WordPress. With it you can easily manage 301 redirections, keep track of 404 errors, and generally tidy up any loose ends your site may have. This can help reduce errors and improve your site ranking.

Redirection is designed to be used on sites with a few redirects to sites with thousands of redirects.

It has been a WordPress plugin for over 10 years and has been recommended countless times. And it’s free!

Redirection is compatible with PHP from 5.4 and upwards (including 7.2).

23. WP Meta SEO

WP META SEO

WP Meta SEO gives you the control over all your SEO optimization. Bulk SEO content and image SEO, on page content check, 404 and redirect

WP META SEO PLUGIN, MAIN SEARCH ENGINE OPTIMIZATION FEATURES

  • Bulk edit all website meta on a single view
  • Edit meta in content with live SEO analysis
  • Fix HTML image resizing in content
  • Bulk edit image file name and meta
  • Bulk edit SEO link title
  • 404 errors redirect and internal broken link checker
  • Add Google Analytics tracking information and display statistics in WordPress
  • Generate XML and HTML sitemaps
  • Facebook and Twitter social sharing custom elements per content
  • Breadcrumb generator
  • Gutenberg SEO content checker

24. WP Super Cache

wp super cache

This plugin generates static html files from your dynamic WordPress blog. After a html file is generated your webserver will serve that file instead of processing the comparatively heavier and more expensive WordPress PHP scripts.

The static html files will be served to the vast majority of your users:

  • Users who are not logged in.
  • Users who have not left a comment on your blog.
  • Or users who have not viewed a password protected post.

99% of your visitors will be served static html files. One cached file can be served thousands of times. Other visitors will be served custom cached files tailored to their visit. If they are logged in, or have left comments those details will be displayed and cached for them.

25. SEO WordPress

seo wordpress

WordPress SEO Plugin by Mervin Praison is a Powerfull Plugin which has many SEO Features. Google Authorship and Google Analytics Integration. Very Easy to Setup. Perfect for Beginners and Advanced Users.

Yoast SEO is the best SEO plugin for WordPress. Yoast has a Free and premium version where you can try it before you buy the full. Yoast SEO does everything in its power to please both visitors and search engine spiders.

Yoast SEO, Rank Math, All in One SEO, SEO Press, SEO WordPress, WP Meat SEO, Sem Rush, Ahref,

See the features which are exclusive to Rank Math SEO plugin and to understand why Rank Math is possibly the Best SEO Plugin for WordPress.