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11 of the Best Keyword Research Tools For Content Marketing and Web Publishers

We review 11 of the best keyword research tools, including Ahrefs, SEMrush, and Moz. Plus, get insight into how to research keywords with AI.

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Introduction

Our text compare tool is a fantastic, lightweight tool that provides plagiarism checks between two documents. Whether you are a student, blogger or publisher, this tool offers a great solution to detect and compare similarities between any two pieces of text. In this article, I will discuss the different ways to use the tool, the primary features of the tool and who this tool is for. There is an FAQ at the bottom if you run into any issues when trying to use the tool.

What makes Originality.ai’s text comparison tool stand out?

Keyword density helper – This tool comes with a built-in keyword density helper in some ways similar to the likes of SurferSEO or MarketMuse the difference being, ours is free! This feature shows the user the frequency of single or two word keywords in a document, meaning you can easily compare an article you have written against a competitor to see the major differences in keyword densities. This is especially useful for SEO’s who are looking to optimize their blog content for search engines and improve the blog’s visibility.

Ways to compare

File compare – Text comparison between files is a breeze with our tool. Simply select the files you would like to compare, hit “Upload” and our tool will automatically insert the content into the text area, then simply hit “Compare” and let our tool show you where the differences in the text are. By uploading a file, you can still check the keyword density in your content.

URL compare

Comparing text between URLs is effortless with our tool. Simply paste the URL you would like to get the content from (in our example we use a fantastic blog post by Sherice Jacob found here) hit “Submit URL” and our tool will automatically retrieve the contents of the page and paste it into the text area, then simply click “Compare” and let our tool highlight the difference between the URLs. This feature is especially useful for checking keyword density between pages!

Simple text compare

You can also easily compare text by copying and pasting it into each field, as demonstrated below.

Features of Originality.ai’s Text Compare Tool

Ease of use

Our text compare tool is created with the user in mind, it is designed to be accessible to everyone. Our tool allows users to upload files or enter a URL to extract text, this along with the lightweight design ensures a seamless experience. The interface is simple and straightforward, making it easy for users to compare text and detect the diff.

Multiple text file format support

Our tool provides support for a variety of different text files and microsoft word formats including pdf file, .docx, .odt, .doc, and .txt, giving users the ability to compare text from different sources with ease. This makes it a great solution for students, bloggers, and publishers who are looking for file comparison in different formats.

Protects intellectual property

Our text comparison tool helps you protect your intellectual property and helps prevent plagiarism. This tool provides an accurate comparison of texts, making it easy to ensure that your work is original and not copied from other sources. Our tool is a valuable resource for anyone looking to maintain the originality of their content.

User Data Privacy

Our text compare tool is secure and protects user data privacy. No data is ever saved to the tool, the users’ text is only scanned and pasted into the tool’s text area. This makes certain that users can use our tool with confidence, knowing their data is safe and secure.

Compatibility

Our text comparison tool is designed to work seamlessly across all size devices, ensuring maximum compatibility no matter your screen size. Whether you are using a large desktop monitor, a small laptop, a tablet or a smartphone, this tool adjusts to your screen size. This means that users can compare texts and detect the diff anywhere without the need for specialized hardware or software. This level of accessibility makes it an ideal solution for students or bloggers who value the originality of their work and need to compare text online anywhere at any time.

So you need to do keyword research for your pages, but you’re not sure where to start?

There are tons of keyword research tools on the market, ranging from beginner-friendly to tailored for advanced optimization pros. Choosing the best keyword research tool, however, can be a challenge. 

Many of these tools excel at a few core things, and there’s rarely a “one size fits all” program that does it all.

In this article, we’ll highlight 11 of the best keyword research tools for content marketers and web publishers, as well as show you how to do keyword research with AI.

1. Originality.ai Content Optimizer

Originality.ai’s Content Optimizer is a free MarketMuse and SurferSEO alternative. 

It’s a fantastic way to run a competitor analysis on content, review keyword density, compare content with up to 10 top competing URLs, and highlight keywords within content, making it a breeze to review content optimization opportunities.

In addition to a Content Optimizer, Originality.ai also offers a full suite of editing and publishing tools, including an AI detector, readability checker, and plagiarism checker.

2. Ahrefs Keywords Explorer

One of the biggest benefits of using the Ahrefs keyword research tool is that it provides users with a detailed analysis of search engine results pages, showing which pages rank at the top for a given keyword or phrase. It also gives users country-specific search volume data, which is great to have if you’re targeting specific regions. 

Additionally, Ahrefs will delve into how competitive a keyword is and how likely you are to rank for it based on the number of backlinks the top-ranking sites have. For SEO professionals who want to focus on organic growth, Ahrefs is a valuable tool to have. 

Read more of our reviews on Ahrefs tools, including the Ahrefs AI text humanizer and Ahrefs AI detector.

3. SEMrush

One of the most popular keyword research tools available, SEMrush is great for more than keywords. It also offers PPC research, backlink tools, and competitor analysis. It also tells you, through a Keyword Difficulty Score, how likely you are to rank or beat the competition for a given keyword or phrase.

One of the key features that sets SEMrush apart from other keyword research tools is that it gives users keyword intent clarification, such as whether or not a keyword is informational or commercial.

Knowing the search intent of your users is crucial to choosing not only the right keywords, but those that are more likely to result in a conversion. 

SEMrush excels in competitor keyword analysis and is a popular pick for SEO professionals who need an all-in-one tool that can easily swap from SEO and PPC to content marketing. 

4. Google Keyword Planner

Google’s keyword planner was originally designed to help users of its paid AdWords (now Google Ads) system find the best keywords to bid on for pay-per-click. Today, it’s used by organic and paid search professionals alike. 

Not only does the Google Keyword Planner give you keyword ideas, but it also gives you search volume details, letting you filter by location, search networks, and language. It shows you the average cost-per-click (CPC) for paid campaigns and organizes keywords by relevance.

It’s an excellent way to find new keyword ideas based on a specific ‘seed' keyword and can help you see what the competition is paying, in general, for paid search ads. If you want to find high-volume keywords, particularly for paid campaigns, this is a great tool to use.

5. Moz Keyword Explorer

Moz focuses on its user-friendly interface and beginner-friendly introduction to SEO. Like other top keyword research tools, Moz includes keyword ranking difficulty and opportunities you may not have considered in your research. 

It includes a Priority Score that combines search volume, difficulty, and CTR potential, as well as the organic click-through rate which estimates how many clicks top-ranking sites will receive. For those SEO professionals who like to dive into the details, historical rank data is also available. 

If you’re looking for a keyword research tool that’s easy to use for beginners but still provides you with some deeper analysis, Moz is a fantastic option. 

6. AnswerThePublic

AnswerThePublic, part of NP Digital, bases its search tool on what people are actually asking online, particularly how, what, and why-style questions. This is one of the best keyword research tools to uncover search intent while providing the details in a mind-map-style layout that shows you how each keyword is related to the other. 

For content marketers who want to create content based on questions people are actually asking across Google, YouTube, TikTok, and more, AnswerThePublic is a great content strategy tool. 

7. KW Finder

KW Finder is part of the Mangools platform and is well-known for long-tail keyword research. It includes historical trends for search volume data and location search details. KW Finder is user-friendly and ideal for small business owners, bloggers, and startups who need a cost-effective tool for long-tail keyword ranking opportunities.  

8. Majestic SEO

Although Majestic SEO is mostly known for its backlink analysis tools, it also offers excellent keyword research tools that include a backlink profile and keyword performance analysis. You can use Majestic to find keywords for your research, and like many other tools, it will give you search volume and keyword difficulty. 

It’s a good option if you’re a search engine professional who wants to take advantage of both a backlink analysis and keyword research platform. 

9. KeywordTool.io 

KeywordTool.io is designed to help you find underutilized keywords through Google Autocomplete. It also provides suggestions from a number of other platforms, search engines, and social media sites including Bing, Amazon, Instagram, X/Twitter, TikTok and more.

This flexible tool is ideal for e-commerce businesses (thanks to its Amazon keyword suggestions) and video content creators through its YouTube, Instagram and TikTok suggestions.

10. Ubersuggest

Ubersuggest, created by Neil Patel, is a beginner-friendly keyword research tool that offers free basic features with premium plans that are also available. By simply typing in a domain name or keyword, Ubersuggest gives you keywords, search volume and difficulty, as well as ideas based on content that’s trending in your given niche. 

It also features a basic competitor analysis with both paid and organic keyword performance. If you’re looking for quick keyword insights, give Ubersuggest a try. 

11. SpyFu

SpyFu is a competitive analysis tool that approaches keyword research a bit differently. A brief search shows you the organic and paid keywords your competition is using for PPC and SEO.

So, if you’re interested in analyzing competitor SEO or PPC efforts to see how you can position your site to get ahead of the competition, it’s a good option.

Bonus Tip: How to Use AI for Keyword Research 

Step 1: Brainstorm keywords with AI

Another option to complement keyword research tools is to use AI for keyword research. As an example, we asked ChatGPT to generate a list of keywords related to content marketing. 

Here is the example keyword list ChatGPT provided

  • Content Marketing Strategy
  • Content Creation
  • SEO Content
  • Content Marketing Tools
  • Content Calendar
  • Content Marketing Examples
  • Content Marketing Trends
  • Content Distribution
  • Content Marketing Plan
  • Content Marketing Tips
  • Content Marketing Ideas
  • Content Marketing Agency
  • Inbound Marketing
  • Content Writing Services
  • Content Marketing Platforms
  • Content Marketing Best Practices
  • B2B Content Marketing
  • Content Marketing Funnel
  • Content Marketing Statistics
  • Content Optimization
  • Content Marketing for Small Business
  • Video Content Marketing
  • Content Marketing ROI
  • Social Media Content Strategy
  • Email Content Marketing
  • Content Marketing Automation
  • Blog Content Ideas
  • Repurposing Content
  • Content Curation
  • Branded Content Marketing

The results offer an excellent starting point for building a content cluster around content marketing topics.

Step 2: Research keyword volume or difficulty with tools

To rank well for topics, you have to go a step further after researching keywords with AI. You need to set up a measurable, concrete plan to use them strategically. 

After an initial search with AI, the keywords could be input into tools like SEMrush or Ahrefs to determine the potential volume or difficulty of ranking with those keywords.

Step 3: Build out content topics

Next, you could use tools like Answer The Public to see what question-based keywords people are asking to further expand and build out comprehensive content topics.

Step 4: Optimize content with the Originality.ai Content Optimizer

Then, after drafting content, input your content or its URL, as well as the URLs of up to 10 top-ranking competitors, into the Originality.ai Content Optimizer to further refine and optimize content with a competitor analysis.

Using the Best Keyword Research Tool for the Project

The most important step you can take when deciding on which keyword tool to use is to look for a tool that will give you unique insight that helps your content rank well. That could mean:

  • Trying out the free Originality.ai Content Optimizer to optimize a page’s performance through competitor analysis.
  • Reviewing search volumes or keyword difficulty with tools like Ahrefs, SEMRush, or Moz.
  • Expanding on topics with tools like Answer The Public to get insight into your audience’s top questions.

Start today and take advantage of keyword research tools to discover the best ways to optimize your content, improve rankings, and expand your audience.

Looking for more insight into content marketing and keyword research?

Sherice Jacob

Sherice Jacob is a seasoned copywriter and content professional fluent in English, Spanish, and Catalan, with over 25 years of experience crafting high-converting copy. Passionate about AI, she enjoys exploring the new innovations and possibilities it brings to the world of content creation.

Frequently Asked Questions

Do I have to fill out the entire form?

No, that’s one of the benefits, only fill out the areas which you think will be relevant to the prompts you require.

Why is the English so poor for some prompts?

When making the tool we had to make each prompt as general as possible to be able to include every kind of input. Not to worry though ChatGPT is smart and will still understand the prompt.

In The Press

Originality.ai has been featured for its accurate ability to detect GPT-3, Chat GPT and GPT-4 generated content. See some of the coverage below…

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Featured by Leading Publications

Originality.ai did a fantastic job on all three prompts, precisely detecting them as AI-written. Additionally, after I checked with actual human-written textual content, it did determine it as 100% human-generated, which is important.

Vahan Petrosyan

searchenginejournal.com

I use this tool most frequently to check for AI content personally. My most frequent use-case is checking content submitted by freelance writers we work with for AI and plagiarism.

Tom Demers

searchengineland.com

After extensive research and testing, we determined Originality.ai to be the most accurate technology.

Rock Content Team

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Jon Gillham, Founder of Originality.ai came up with a tool to detect whether the content is written by humans or AI tools. It’s built on such technology that can specifically detect content by ChatGPT-3 — by giving you a spam score of 0-100, with an accuracy of 94%.

Felix Rose-Collins

ranktracker.com

ChatGPT lacks empathy and originality. It’s also recognized as AI-generated content most of the time by plagiarism and AI detectors like Originality.ai

Ashley Stahl

forbes.com

Originality.ai Do give them a shot! 

Sri Krishna

venturebeat.com

For web publishers, Originality.ai will enable you to scan your content seamlessly, see who has checked it previously, and detect if an AI-powered tool was implored.

Industry Trends

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Frequently Asked Questions

Why is it important to check for plagiarism?

Tools for conducting a plagiarism check between two documents online are important as it helps to ensure the originality and authenticity of written work. Plagiarism undermines the value of professional and educational institutions, as well as the integrity of the authors who write articles. By checking for plagiarism, you can ensure the work that you produce is original or properly attributed to the original author. This helps prevent the distribution of copied and misrepresented information.

What is Text Comparison?

Text comparison is the process of taking two or more pieces of text and comparing them to see if there are any similarities, differences and/or plagiarism. The objective of a text comparison is to see if one of the texts has been copied or paraphrased from another text. This text compare tool for plagiarism check between two documents has been built to help you streamline that process by finding the discrepancies with ease.

How do Text Comparison Tools Work?

Text comparison tools work by analyzing and comparing the contents of two or more text documents to find similarities and differences between them. This is typically done by breaking the texts down into smaller units such as sentences or phrases, and then calculating a similarity score based on the number of identical or nearly identical units. The comparison may be based on the exact wording of the text, or it may take into account synonyms and other variations in language. The results of the comparison are usually presented in the form of a report or visual representation, highlighting the similarities and differences between the texts.

String comparison is a fundamental operation in text comparison tools that involves comparing two sequences of characters to determine if they are identical or not. This comparison can be done at the character level or at a higher level, such as the word or sentence level.

The most basic form of string comparison is the equality test, where the two strings are compared character by character and a Boolean result indicating whether they are equal or not is returned. More sophisticated string comparison algorithms use heuristics and statistical models to determine the similarity between two strings, even if they are not exactly the same. These algorithms often use techniques such as edit distance, which measures the minimum number of operations (such as insertions, deletions, and substitutions) required to transform one string into another.

Another common technique for string comparison is n-gram analysis, where the strings are divided into overlapping sequences of characters (n-grams) and the frequency of each n-gram is compared between the two strings. This allows for a more nuanced comparison that takes into account partial similarities, rather than just exact matches.

String comparison is a crucial component of text comparison tools, as it forms the basis for determining the similarities and differences between texts. The results of the string comparison can then be used to generate a report or visual representation of the similarities and differences between the texts.

What is Syntax Highlighting?

Syntax highlighting is a feature of text editors and integrated development environments (IDEs) that helps to visually distinguish different elements of a code or markup language. It does this by coloring different elements of the code, such as keywords, variables, functions, and operators, based on a predefined set of rules.

The purpose of syntax highlighting is to make the code easier to read and understand, by drawing attention to the different elements and their structure. For example, keywords may be colored in a different hue to emphasize their importance, while comments or strings may be colored differently to distinguish them from the code itself. This helps to make the code more readable, reducing the cognitive load of the reader and making it easier to identify potential syntax errors.

How Can I Conduct a Plagiarism Check between Two Documents Online?

With our tool it’s easy, just enter or upload some text, click on the button “Compare text” and the tool will automatically display the diff between the two texts.

What Are the Benefits of Using a Text Compare Tool?

Using text comparison tools is much easier, more efficient, and more reliable than proofreading a piece of text by hand. Eliminate the risk of human error by using a tool to detect and display the text difference within seconds.

What Files Can You Inspect with This Text Compare Tool?

We have support for the file extensions .pdf, .docx, .odt, .doc and .txt. You can also enter your text or copy and paste text to compare.

Will My Data Be Shared?

There is never any data saved by the tool, when you hit “Upload” we are just scanning the text and pasting it into our text area so with our text compare tool, no data ever enters our servers.

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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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