SEO content writing tools

10 AMAZING SEO Content Writing Tools (2021)

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Knowing how to write SEO content is the most valuable skill you can bring to a website. This is what separates winners and losers in Google.

But you know what? SEO content takes a lot of time to create. Anything that can make the process easier – and achieve better results – is a golden nugget.

In this guide, we’ll reveal 10 amazing content writing tools that we use in our SEO content creation process.

So if you want to create content that Google loves using tools recommended by real writers and SEO professionals, keep on reading.

Let’s get to it.

What are the best content writing tools for SEO?

BONUS tools recommended by readers

Read on to find out more about these writing tools for SEO.

Affiliate disclaimer: Content Hero may receive compensation for recommendations made in reference to the products or services in this article.

1. Get instant keyword and search intent ideas with Answer the Public

Answer The Public

What is it? 

Answer the Public is a search intent and keyword discovery tool that gives you raw insight into Google searches so you can create relevant, useful content.

It helps you write better SEO content by giving you the exact keywords and phrases people are using on Google. You can use these for topic ideas or mould them into your content to target deep long-tail keywords.

Why is it a good tool?

Answer the Public identifies keywords, questions and phrases for you so you don’t need to go through individual keywords. You can also monitor trends and compare search behaviour over time.

Best feature

The best feature is the discovery tool. You can also export data via CSV.

2. Identify what’s missing from your SEO content and what to write about with Topic


What is it? 

Topic is an AI-powered tool that analyses Google and your content to identify gaps where you can strengthen the SEO.

There are two key features: Content Briefs, where you enter a keyword and Topic searches Google for what you need to cover, and Content Grader, which analyses the content you have written for improvements.

Why is it a good tool?

Topic is different to other content analysis tools because it tells you what you need to write about based on real-time search data – not just how to make your writing fantastic for SEO.

Best feature

Content Briefs is an exceptional tool for creating SEO content briefs. It tells you exactly what topics to cover to maximise visibility in Google. It works very well and it’s something we use professionally.

3. Deep dive into People Also Ask data with AlsoAsked

Content marketing tools

What is it? 

AlsoAsked gives you an organised view of People Also Ask data so you can write SEO content than ranks.

All you need to do is input a keyword and AlsoAsked will search Google for People Also Ask data. It provides a crystal clear breakdown of the questions users are asking about a topic and it shows how those questions are linked with a spider diagram.

Why is it a good tool?

As you may know, ‘People Also Ask’ is a contextual box in Google Search that provides answers to questions people search for. You can use these questions to create killer blog post topics and write SEO content that Google loves.

AlsoAsked makes this advanced keyword research easy and efficient. It’s the best way to collect People Also Ask data.

Best feature

You can export question data as a spreadsheet and a PNG image. This makes collaboration easy and helps when planning an SEO content strategy.

4. Optimise content in real-time in Google Docs with SEO Writing Assistant

SEO Writing Assistant

What is it? 

SEO Writing Tool by SEMrush is a Google Docs extension that provides real-time SEO recommendations as you write.

If you use Google Docs to create content, using SEO Writing Assistant is a no-brainer. It provides SEO recommendations based on SEMrush’s industry-leading search data. Quality, keywords, readability, headings, text length and more factors are checked.

Why is it a good tool?

Whether you know how to write SEO content or not, this tool will make sure you optimise it properly.

It measures readability, SEO, originality and tone of voice. Input your keywords and let the tool do the rest.

Best feature

You can integrate it with Google Docs and WordPress, giving you two ways to create SEO content. Personally, we prefer using Google Docs for collaboration.

You can also download a Workspace extension for this tool here.

5. Optimise your content in WordPress with Rank Math

Rank Math

What is it? 

Rank Math is an SEO plugin for WordPress that makes it easy for anyone to optimise their content.

Install Rank Math on your WordPress website, input a keyword for the page you are editing and Rank Math will analyse your content in real-time and provide suggestions.

It performs a content audit and a technical audit on your website to give you the most SEO benefit and it does all this by itself.

Why is it a good tool?

Rank Math helps you create incredible SEO content by making suggestions during editing. Keyword density, keyword focus, keyword variation and many more factors are analysed.

Best feature

It has a Schema Markup generator and integrates with Google Analytics and Google Search Console. It then tracks and measures your keyword rankings in your WordPress dashboard.

6. Get a complete SEO tool suite with Mangools


What is it? 

Mangools is an SEO tool suite with keyword research, SERP analysis, rank tracking, backlink analysis and SEO metric profilers.

There are so many SEO tool suites out there. Mangools is the best we have come across.

It has five core features – KWFinder, SERPChecker, SERPWatcher, LinkMiner, SiteProfiler – that perform specific tasks. You do everything within a beautiful online dashboard and all data is exportable.

Why is it a good tool?

Mangools is used by SEO professionals because of the sheer depth and breadth of data it provides. You can build a complete SEO strategy using only this suite of tools.

It’s great for SEO content writing because it identifies a wide range of keywords to integrate into your content.

Best feature

KWFinder is our favourite tool of the bunch. It finds long-tail keywords other tools miss and you can use it to find all the keywords your website (and others) rank for.

7. Discover LSI (latent semantic indexing) keywords with Watson 


What is it? 

Watson is a natural language processing tool powered by AI built by IBM. It uncovers LSI keywords – contextual keywords related to your content’s main topic.

LSI keywords are considered a branch of technical SEO content writing. They are not the kind of thing regular keyword research tools pick up because they are not based on search data. They are based on language.

Copy and paste your content into the tool and it will uncover LSI keywords for you.

Why is it a good tool?

Watson uncovers LSI keywords which help Google understand what your content is about. By integrating LSI keywords into your content, you are more likely to rank for your main keywords.

Best feature

The only feature is the tool itself. It’s simple but works well. Just copy and paste your content. You’ll find keywords under the ‘Keywords’ tab.

8. Improve the quality of your writing with Grammarly 


What is it? 

Grammarly is a real-time editor that provides suggestions to improve your writing. It catches grammar, spelling and punctuation mistakes, as well as wordy sentences and typos.

The quality of your writing is important so that readers respect your content. Typos and errors turn readers away because they stick out. Grammarly solves the problem and solves it well.

You can use the tool in several ways. There’s a desktop app, an online client and a browser extension. There’s also an app on Android and iOS.

Why is it a good tool?

If you are prone to making mistakes when you write Grammarly spots these. The free version analyses your writing for correctness (word choice, spelling, grammar) and clarity (wordy sentences and phrases).

Best feature

Grammarly is available as a browser extension that checks your writing in most editors, including Google Docs and WordPress.

9. Check your content for plagiarism with Duplichecker 


What is it? 

Duplichecker is free a copy and paste anti-plagiarism tool that searches the web for other uses of your content.

Duplicate content is bad for SEO. Google says so itself. Duplichecker is our favourite anti-plagiarism tool because it’s fast, accurate and free to use. It has a 1,000-word text limit. Our Duplichecker review deep dives into the features.

Why is it a good tool?

Our tests show that it has a 95% accuracy rate and only struggles with short quotes. It catches plagiarism across the web and makes sure your content is unique. This will be useful if you buy content.

Best feature

If you go Pro you can submit up to 30,000 words per search and there are no ads. Plans start from $10 per month.

10. Easily create Schema Markup with Schema Markup Generator 

Schema Markup Generator

What is it? 

Schema Markup Generator is a tool that generates verified Schema Markup based on data you input.

As you may know, Schema Markup is used by Google and other search engines to better understand what a page is about. It’s also used by search engines to create rich search results like event and recipe listings.

You need to integrate Schema Markup into your content for it to work, but you need to create it first. Schema Markup Generator creates this code for you. All you need to do is input the data.

Why is it a good tool?

You can create a wide range of Schema Markup, including:

  • Article
  • How-to
  • Breadcrumb
  • Event
  • FAQ page
  • Job posting
  • Local business
  • Organisation
  • Person
  • Product
  • Recipe
  • Video
  • Website

The Schema Markup this tool generates is always correct and verifiable in Google’s Structured Data Testing Tool.

Best feature

The only feature this tool has is the Schema Markup field box. It’s easy to use and produces verified Schema Markup. We like the uncluttered interface and the dark background.

What is SEO content?

SEO content includes articles, blog posts and web pages that are written to rank high in the search engines. The goal is to maximise search engine traffic.

Any type of content can be written for SEO, including articles, blog posts, web pages, press releases, infographics, images, video transcripts and anything else with words.

Is content important for SEO?

Content is essential for SEO. There is no doubt about it. Search engines read the words on your website to determine what your site is about. Without these words, you will not rank high.

How do you write quality SEO content?

  • Conduct keyword research
  • Identify your target keyword
  • Identify what type of content ranks for your target keyword
  • Develop your content strategy
  • Create your content
  • Optimise your content
  • Publish

With regards to bullet point 2, perform a Google search for your target keyword. What type of content ranks high? If the top results are listicles, create a listicle. If the top results are guides, create a guide. If the top results are landing pages, create a landing page. You get the idea.

Further reading

If you are new to SEO, we recommend reading Google’s SEO Starter Guide. It provides a fantastic introduction to search engine optimisation. The section about SEO content can be found here.

If you are a content marker then you’ll also enjoy reading our article covering the best content marketing tools.

What’s your favourite SEO content writing tool?

We hope you find the tools and advice in this article useful in your SEO content creation process.

Be sure to leave your content writing tool suggestions in the comments below. All recommendations are welcome.

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Jessica Bowen
Jessica Bowen
10 months ago

If you use Google Docs I also recommend GDoc SEO Assistant. It works the same as the SEMrush tool. Insert your keyword to generate relevant SEO suggestions and related keywords. It works great. Check it out at

Darren @ Vertical SEO
Darren @ Vertical SEO
10 months ago

I prefer Yoast SEO to Rank Math. Rank Math has more key features for free but I get better results with Yoast.

Last edited 10 months ago by Darren @ Vertical SEO
Neil Shan
Neil Shan
10 months ago

SEO content is an art that can’t be replicated with tools. Having said that, there’s nothing wrong with using tools to make some tasks easier. The standout tool in this list is Topic in my opinion. It automates the process of keyword phrase discovery and creates article templates for you with headings. All you need to do is write the substance.

Overall, a great list. Thanks.

Sammy Leigh
Sammy Leigh
10 months ago

Just signed up to Mangools. Looks better than ahrefs on first glance. The keyword and website analysis tools are great.

Jess Horner / Nano Dimensional
Jess Horner / Nano Dimensional
10 months ago

My list:

1. HubSpot
2. Monday
3. ProWritingAid

Daniel Harding
Daniel Harding
10 months ago

Topic looks good. Thanks for the article

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