Best Free Keyword Research Tools of 2026

Semrush

Semrush One is an all-in-one digital marketing platform designed to help brands win visibility across search engines, AI platforms, and emerging discovery channels. It unites traditional SEO tools with advanced AI search and GEO capabilities to measure and grow brand presence everywhere users search. The platform supports optimization across Google, ChatGPT, Perplexity, Gemini, and more from a single interface. Semrush One offers toolkits for SEO, content marketing, traffic analysis, local search, advertising, social media, AI visibility, and digital PR. Powered by one of the world’s largest AI-driven marketing databases, it delivers deep insights competitors can’t easily replicate. Enterprises and marketers use Semrush One to forecast traffic, revenue, and ROI with confidence. Trusted by millions of professionals and global brands, Semrush One acts as a central growth engine for digital visibility.

6,459 Ratings

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Seobility

Seobility checks your complete website, by crawling all linked pages. All found pages with errors, problems with the on-page optimization or problems regarding the page content like duplicate content are collected and displayed in each check section. Of course, you can also analyze all problems of a single page in our page browser. For a sustainable and continuous review of your website, each project is constantly crawled and analyzed by our crawlers to track the progress of your optimization. You will also be notified by our monitoring service with the status of your website via e-mail, if server errors and major problems occur. Seobility not only provides a detailed SEO audit but also gives tips and instructions on how to fix the problems found on your website. By fixing these issues, you make sure that Google can access all of your relevant content and understand what it’s about in order to match it with suitable search queries.

470 Ratings

Starting Price: $50 per month

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SEMAI

SEMAI – AEO & GEO Visibility Platform for the AI Search Era SEMAI is an AI-powered Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) platform that helps brands gain visibility across Google AI Overviews, ChatGPT, Gemini, and Perplexity. Instead of optimizing for rankings, SEMAI helps you optimize for answers, citations, and LLM visibility—the signals that matter in today’s AI-driven search landscape. SEMAI provides: AI Overview & GPT visibility tracking Persona-based question & long-tail query extraction Topic cluster generation for TOFU/MOFU/BOFU AEO/GEO-optimized content creation Competitor visibility insights Predictive keyword & intent risk analysis Built for marketers and SEO teams, SEMAI gives you a clear roadmap to improve AI visibility, win more citations, and dominate topic clusters in the new Answers Economy.

11 Ratings

Starting Price: $99/month/

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tool4seller

Tool4seller is an Amazon seller tool that provides data analytics and translates it into reports, summaries, dashboards, and graphs to help sellers make better operational decisions. With functions to monitor, analyze, and present data of your Amazon business, including keyword research, PPC optimization, Ad performance tracking, sales trends, profits analytics, FBA inventory management, email automation, request reviews, instant alerts, listing optimization, profit dashboard, reverse ASIN search term lookup and competitor analytics. Multiple platforms of Web, iOS & Android are for options. Manage and drive your Amazon business whenever and wherever you are. Register tool4seller for a free trial now : )

1 Rating

Starting Price: $19/month

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SeoSamba Marketing Operating System (MOS)

SeoSamba

SeoSamba's Marketing Operating System or MOS is a comprehensive cloud marketing software ideal for small businesses, multi-locations enterprises, and companies who sell digital solutions to SMBs such as publishers, agencies, broadcasters, financial institutions, telcos, ISVs, MSPs. Your SeoSamba Marketing Operating System includes a set of high-performance tools to help build a powerful no-nonsense digital marketing presence up. Access SEO tools, Google, Facebook, Yelp & 100 of platforms review management tools, email marketing, social marketing tools including a mobile app, VoIP telephony and call tracking tools, text marketing and messaging tools, as well as centralized blogging for SeoToaster and Wordpress powered websites. SeoSamba MOS seamlessly integrates with SeoSamba's CRM aka SeoToaster Ultimate CRM and features two companions mobile apps, a social marketing and lead & CRM apps to help you manage your business on-the-go. SeoSamba MOS is rebrandable by resellers.

Starting Price: $99.00/month

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SE Ranking

SE Ranking is an all-inclusive, cloud-based search engine optimization (SEO) platform for webmasters and marketing professionals. Intuitive and easy-to-use, SE Ranking offers a complete set of tools for comprehensive tracking of keyword positions, site auditing, analyzing competitor SEO and PPC strategies, keyword suggestion and grouping, website ranking, backlink monitoring, automated professional reporting, and more. By leveraging SE Ranking, users can easily keep track of their website’s keyword ranking in multiple countries, cities, regions, and languages in real-time across Bing, Google, and Yahoo.

6 Ratings

Starting Price: $24.80/month/user

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Marketing Miner

Marketing Miner is an SEO tool for all data-driven marketers. Gain valuable insights with over 40 features to skyrocket your website rankings. User-friendly interface and bulk data analysis features to save your time and effort. Collect valuable data insights and analyze up to 100,000 keywords or URLs in a single click to improve your SEO strategy. Popular features: - Keyword Research - SEO Audit - Rank Tracking - Competitor Analysis - Brand Monitoring - Link Building - Bulk Data Analysis - API

3 Ratings

Starting Price: $13.00/month

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GuinRank

Google uses machine learning to analyze the context of the content. Now you can Create Content That Google Wants to Rank! We offer you the most powerful content editing tool for AI, supporting 60 languages. We are the best among all our competitors, We can analyze the content of your site and compare the top results in Google. Allows you to see the power and weakness of the keyword content of your articles and competitors. The tool saves you a lot of time and helps you write.

3 Ratings

Starting Price: Free

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Serpstat

Serpstat is the growth hacking tool for marketing and SEO. Website analysis always one click away with the Serpstat plugin. Don't look for the required report too long anymore. Find out all information about every domain with one click using the Serpstat plugin. Our Manual and Use Cases page will show you how to use Serpstat to its full potential. Beat your competitors and take a leading position in Search. Freemium model allows you to research keywords, analyze competitors and get acquainted with Serpstat without hassle. Sign up for free now! Not sure how to use a certain feature? Need help with setting up domain tracking? If you need assistance or have any other questions, our support team is always here to help!

3 Ratings

Starting Price: $69 per month

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Similarweb

Similarweb is the leading AI-powered digital data platform committed to unlocking the full potential of the digital landscape. Trusted by startups, Fortune 500 companies, and top global brands, we provide actionable market insights that empower businesses to understand competitors, consumer behavior, and emerging trends. Our solutions span the entire digital funnel - covering marketing, SEO, sales operations, eCommerce, and research - with comprehensive analytics across websites, apps, products, and industries. With Similarweb, businesses gain access to extensive data coverage, including over 1 billion websites, 8 million apps, and 3 million brands. Our platform delivers real-time insights with data on 5 billion search terms, 250 million display ads, and 10 billion content pages, enabling companies to stay ahead of the curve. With global reach across 190 countries and 210 industries, Similarweb helps teams benchmark performance, optimize strategies, and drive growth.

1 Rating

Starting Price: $199/month

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vidIQ

Your is your all-in-one engine for YouTube growth. Smarter ideas, faster optimization, winning titles, keywords, and thumbnails. Turn ideas into views with a single workspace built for speed and scale. vidIQ brings research, creation, and optimization together so you can move from concept to publish to growth without juggling tools.

1 Rating

Starting Price: $19.00/monthly

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TubeBuddy

TubeBuddy is a browser extension that lets you get more views and increase subscribers by providing you with tools that help you optimize your content in the fastest time possible. Let TubeBuddy help you find high-performing, searchable video topics, and then craft the perfect titles and tags. Hit the ground running with TubeBuddy's suite of time-saving templates and tools to drastically speed up publish times. TubeBuddy will guide you through YouTube's Best Practices and ensure your videos are set up for success. Use a variety of tools to help promote your videos across the web and use your existing videos to drive traffic to new uploads. Wondering if your thumbnails could be improved? Let TubeBuddy give you the answer with simplified A/B Testing.

1 Rating

Starting Price: $9 per month

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Checkaso

Checkaso is an analytical platform that rates your ASO performance and gives you custom tips on how to improve it. It’s created by ASO specialists and fits users of any experience from beginners to enthusiasts with a lot of optimized apps behind. The platform algorithms provide highly accurate data on keywords impressions and search volume, live search results, ranking history, competitor analysis for the App Store & Google Play, and more.

1 Rating

Starting Price: $24/monthly

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Keyword Surfer

Surfer

Chrome extension for content and keyword research. The fastest way to reveal search data and content guidelines for your keywords, and all 100% free. Keyword Surfer will show you the monthly search volume for your keyword and all similar keywords that you can use for your strategy. Find your top keywords before you even look at the search results page. Discover similar keywords for even more ranking opportunities. Target many keywords with the same piece of content, or plan new articles and landing pages for months ahead. Boost your content relevance, speed up your keyword research process, and dominate related searches. Discover the domain’s monthly traffic, content word count, and the number of exact keywords for your top 10 competitors. Wondering how difficult it is to rank for your phrase? Content Editor generates a set of guidelines based on your competitors’ pages and Surfer’s NLP-powered algorithms. Follow them to ensure sure your content is relevant.

1 Rating

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Moz Keyword Explorer

Moz

Enter a URL or keyword to discover and prioritize the best keywords to target. Effectively predict how much search volume a keyword will receive with more than 95% accuracy. Comprehensive scoring helps you prioritize keywords by topic or focus in one place to use as a keyword planner. Easily export keyword research suggestions, analyses, and lists into metrics-rich, well-formatted CSVs. Stay ahead of the curve by targeting long-tail keywords with high relevance, broadly related topics, or keywords in the form of questions. Understand why pages rank where they do with a SERP analysis breakdown of the elements and link data at each ranking position. Search keyword suggestions and ranking keywords by country for better international SEO strategies.

1 Rating

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App Radar

Whether you’re starting out with App Store Marketing (ASO & ASA) or you are an advanced app marketer, you’re definitely looking for the right way to get your apps the growth you need. With App Radar's app growth platform, you can: - Analyze how your app is discovered. - Optimize for the best keywords with AI. - Directly update your store listing from App Radar. - Conduct app competitor analysis. - Get AI Review Summaries of any app - Save up to 90% of the time needed for ASO. - Get our experts to take care of ASO & ASA and lower your workload. - Ensure performance with individual strategies. - Bring our know-how in-house. Grow your apps & games with our smart and simple app growth! Get actionable intelligence to optimize your ROI and roadmap. Turn your idea into a success story with App Radar's support!

Starting Price: €69/month

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MobileAction

Apple Search Ads Partner | Growth partner of apps and games with intelligence, automation and expertise Founded in 2013 in San Francisco, MobileAction is a pioneer in app analytics and the growth partner of apps and games for organic and paid user acquisition. It is the go-to platform for app marketers aiming for the top charts on the App Store and the Google Play Store, trusted by industry giants like Entain, IGG, Zalando, Playtika, and Adidas. MobileAction's solutions include Apple Search Ads campaign management, intelligence for ads, ad creatives, paid keywords and ASO, market insights, custom solutions and consultation. With data from 90M+ creatives, 6M+ keywords, 5M+ apps, 100K+ publishers, and 500K+ advertisers, MobileAction lets app marketers step into the future of app optimization.

Starting Price: $59

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iSpionage

iSpionage is a competitive research and monitoring platform for digital marketers to gain a competitive edge in the search marketing landscape. 35,000+ clients have used iSpionage to improve SEO & SEM performance. Our unique features allow you to: visualize PPC buyers journey from clicks to conversions, stay current with competitors' offers using our landing pages intelligence, track your SEO rankings globally, and more. See it for yourself. Spionage provides landing page surveillance, website monitoring, and competitive keyword research for digital marketing teams looking to get a competitive advantage and to keep a closer eye on their top competitors. Local paid search ads campaigns monitoring, in multiple countries. Benchmarks of impression share at a local and national level. Custom Users’ Journey report from ads, keywords to landing pages. Keyword search rankings monitoring, across Google and Bing. Competitive analysis and interactive share of voice. Content gap analysis.

Starting Price: $59 per month

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QuestionDB

QuestionDB is not your typical keyword tool. It can be be incredibly powerful and valuable for writers and marketers trying to grow a blog, but you need to use it correctly. To get started, pick a broad keyword. For example, if you're a marketer, you might want to start with "seo" or "backlinks". If you're a nutrition writer, start with something like "keto" or "vegan". If you choose the right keyword, that will return you a large list of questions. Come up with a list of seed keywords either from your experience or from that initial search.

Starting Price: $7 per month

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EtsyHunt

Backed by 27,000,000 Etsy product data, EtsyHunt aims to build tools that make Etsy SEO, product research, Etsy listings, and label optimization easy. At present, Etsy's three powerful functions are product research, keyword research, and store research. Products: Sellers can find any product information you want to find through EtsyHunt's filter items such as country, price, reviews, and favorites. Keywords: Etsy Hunt provides keyword search volume, purchase volume, and Google trends. You can also get a lot of similar vocabulary data. Shops: If you want to query the data of top stores in the industry, you can filter out the data of Etsy Top stores by country, industry, product options.

Starting Price: $0/month

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Leap AI

Create beautiful images effortlessly with AI Image Generator tool by Leap AI AI Image Generator tool by Leap AI helps you create stunning images from text prompts, which can be useful for various purposes such as marketing, content creation, and personal projects. It ensures you have high-quality visuals to enhance your work. To get the best results, provide detailed and descriptive text prompts. The more specific your input, the more accurate and visually appealing the generated images will be.

Starting Price: $7 per month

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Answer Socrates

Answer Socrates is a keyword and question discovery tool that helps users uncover the real questions people ask on Google about any topic. It provides keyword generation, keyword clustering, and a brand tracker for deep research and content strategy. Users can perform up to three searches per day for free, with recursive search and cluster credits included monthly. The platform is designed to help content creators, marketers, and researchers write thorough, research-based articles by answering relevant questions. With a clean, easy-to-use interface, Answer Socrates supports users in brainstorming ideas and gaining deeper insights for their topics. The service also offers registration for full access to more searches and features.

Starting Price: Free

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AppFollow

The world’s leading AI-powered Review Management platform. Manage user reviews, analyze user sentiment, and improve your app’s visibility, all in one place. With AppFollow, you can make the most out of user feedback and ensure your app stays visible in the app stores, all the while climbing the rankings. The product suite includes: - One platform review management across all major app stores - Review management automation, tagging, and AI responses - Detailed analytics on user reviews, sentiment, app ranking, and competitors - Integrations with major services like Zendesk, Salesforce, Tableau, and many others - Expert consultation team ready to help with app growth, audits, and market strategy AppFollow is trusted by over 70,000 clients, including Hubspot, Robinhood, Lyft, Rakuten, Discord, Miro, Orange, Deezer, Sony, HBO, Disney, Playrix, Gett, Viber, and Wargaming.

Starting Price: $23 per month

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Appfigures

Improve your ASO faster with hourly updates for any keyword in key markets across the globe. Analyze keywords to find new opportunities, and see the performance of your competitors. Keep track of downloads, revenue, and store performance for all of your apps in one place to see trends and make more informed decisions. Monitor keyword ranks and identify new keywords that will increase your views and get you more downloads with unparalleled insights. Outsmart the competition and build a better growth strategy by analyzing their download trends, revenue, organic keywords, installed SDKs, and more. Get the most complete view into your app downloads and revenue to easily identify and analyze important trends. Easily analyze revenue from app downloads and in-app purchases, subscriptions, and ads together to see the complete picture and benchmark growth. Analyze the competition by viewing highly accurate estimates of their downloads and revenue trends over time and by country.

Starting Price: Free

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APPlyzer

Extract the most the most relevant keywords for your apps and your competitors. Get worldwide search results for iOS, Google Play, macOS and Apple TV. Download CSV data, use the Report Generator or integrate the APPlyzer Restful API into your software tools, interfaces and dashboards. Realtime market data in your hands. Worldwide reviews and customer feedback from up to 155 app stores. Understand the audience with auto-translation from 100 languages. Stay informed about significant ranking changes with daily and hourly alerts through Email and Slack.

Starting Price: €10 per month

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Asodesk

One solution to grow your app business. Asodesk is an ecosystem for promoting mobile businesses. It includes tools and data for mobile marketing, working with product and app reviews, as well as training and agency services. Our products: 🚀 ASO tools. The complete set of tools for working with ASO. 🚀 Top charts & store analytics. The App Store and Google Play data research. 🚀 Analytics and replies to reviews. Professional tools for working with reviews. 🚀 StoreConsole. Application metadata management. 🚀 Competitive research. Tools for competitor application analysis. 🚀 App monitoring. Application position research. 🚀 App analytics. Analytics of application traffic sources. 🚀 Boost to the top. Incentivized installs from real users. 🚀 API. Build your own boards and get all the historical data through your interface. 🚀 Free tools. Find new keywords, analyze metrics, and get new insights for free.

Starting Price: $49.00 per month

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TubeRanker

TubeRanker is a YouTube SEO Tool for optimizing your YouTube Channel and ultimately getting more views. Our toolset allows you to audit the performance of your YouTube channel, find great content ideas with the YouTube Keyword Tool, and track ranking improvements over time with the YouTube Rank Tracker.

Starting Price: $0

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Alura

Start with a free account and explore all the features you need to start, run, and grow your Etsy shop. Alura is created specifically for Etsy sellers, join thousands of sellers that use Alura to run and grow their business. Whether you're just starting out or already a successful shop owner, we're here to help. Contact us at any time. Alura is an all-in-one platform for selling on Etsy. Set your business up for success with all the features you need to manage and scale your Etsy shop. Our mission is to provide simple, powerful tools and resources to help you succeed selling on Etsy. We want to empower you to turn what you love into what you sell, successfully. Etsy keyword research is all about finding keywords with low competition and high demand. Our data is accurate and comes directly from Etsy. Need more keyword ideas? You’ll get numerous suggestions from our keyword tool. You’ll also see views, favorites, competition, and estimated sales for each keyword.

Starting Price: $13.99 per month

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eRank

Powerful and reliable data, trusted by Etsy sellers around the world! According to Alexa and SimilarWeb, eRank is the most popular Etsy SEO tool available. Created specifically for Etsy sellers, eRank was built with a passion to help handmade businesses grow! Identify long-tail keywords that real buyers use in searches on Etsy, Amazon, eBay, Pinterest, and Google Shopping. Monitor other sellers in your category and discover how your shop measures up to the competition. Discover where your listings would appear in a typical customer search, then watch how the changes you make affect your rank. Optimize your listings with keywords that real shoppers are using in searches! Discover what the most popular items and trends were in searches over the past month. Monitor how the changes you make to your shop affect your views, favorites, and sales. Join eRank today and gain access to powerful analytics, keyword resources, and tools custom-tailored to empower your journey to Etsy success!

Starting Price: $5.99 per month

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Allintitle.co

Keyword suggestion tool, Allintitle, Google search operators, and KGR bulk checker with laser-focused geolocation & language targeting. Plus SERP tracker and content writing tool (AI-powered.) Use award-winning keyword research, AI-powered content writing, and the SERP Tracker tool that has been used and recommended by top SEO experts. You will find more and better quality keywords using Allintitle.co than any other keyword research tool out there. But don’t just take our word for it, sign up for a free trial and check out our KW Explorer. If used properly Allintitle can be a powerful magnet for low-competition keywords. The lower Allintitle the easier ranking for your site but keep in mind it's not always that simple! Follow the guide to learn how to do proper Allintitle keyword research. We gave our best to make this tool user-friendly. All you need is just a list of keywords and you are ready to go!

Starting Price: $30 per month

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Best Free Keyword Research Tools

Compare the Top Free Keyword Research Tools as of February 2026

What are Free Keyword Research Tools?

Semrush

Seobility

SEMAI

tool4seller

SeoSamba Marketing Operating System (MOS)

SE Ranking

Marketing Miner

GuinRank

Serpstat

Similarweb

vidIQ

TubeBuddy

Checkaso

Keyword Surfer

Moz Keyword Explorer

App Radar

MobileAction

iSpionage

QuestionDB

EtsyHunt

Leap AI

Answer Socrates

AppFollow

Appfigures

APPlyzer

Asodesk

TubeRanker

Alura

eRank

Allintitle.co

Best Free Keyword Research Tools

Compare the Top Free Keyword Research Tools as of February 2026

What are Free Keyword Research Tools?

Semrush

Seobility

SEMAI

tool4seller

SeoSamba Marketing Operating System (MOS)

SE Ranking

Marketing Miner

GuinRank

Serpstat

Similarweb

vidIQ

TubeBuddy

Checkaso

Keyword Surfer

Moz Keyword Explorer

App Radar

MobileAction

iSpionage

QuestionDB

EtsyHunt

Leap AI

Answer Socrates

AppFollow

Appfigures

APPlyzer

Asodesk

TubeRanker

Alura

eRank

Allintitle.co

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