SEO free Tool in 2025
sigmaflux
0 comments April 23, 2025

Top Free Keyword Research Tools To Boost Your SEO in 2025

Search Engine Optimization

Keywords are the backbone of Search Engine Optimization and the most organic way to get your content ranking up.

SEO research and proper keyword analysis are critical for ranking your website on the search engine results page. However, it can be difficult to know which keyword tool is the most reliable and best for the job.

Using the right keyword planning and research tools can significantly enhance your content and improve your website’s visibility.

This is useful for anyone seeking ways to boost their content ranking on the SERPs and for conducting better & more effective research on keyword metrics as well as website statistics.

This blog will tell you which are some of the best tools that you can use for your keyword planning and research for free. 

  1. Google Keyword Planner

Google Keyword Planner is the first name that pops up when anyone mentions a free keyword research tool. It works great, and being a part of Google Ads, you gain access to search volume data, ideas for better keywords, and forecasts right from the search engine’s massive database.

Best bits:

  • reliable data
  • keyword competition levels (low, medium, high)
  • Beginner-friendly, easy to use
  • displays high & low bids

Google keyword planner proves to be one of the best free tools for keyword research due to its beginner-friendly nature, trustworthy data, and the ability to find data straight from the source.

  1. Semrush Keyword Magic Tool (Free Version)

Semrush is a top-level tool for analyzing the SEO data of websites. But we are limited to using the free version, as Semrush is a premium platform. Despite being the free version, it offers generous tools, sorting options & filters, albeit with a limited number of searches. The use of the Semrush keyword magic tool will help you uncover the most relevant keywords with premium-level insights. This is great for professional marketers looking for small-scale research.

Best bits:

  • Allows for grouping of keywords by topic
  • Useful and detailed filters
  • Broad matching of exact words & phrases
  • Suggests thousands of keywords

The free version of the Semrush Keyword Magic Tool allows users to try a premium SEO tool for some serious research while also making the users consider opting for the premium version.

  1. Keyword Surfer – Research Keywords While You Browse

If you’re looking for a tool that is also a browser extension to display keyword metrics directly in your search results page, then Keyword Surfer is the best for you. It is a lightweight, accessible tool that enables seamless keyword research by integrating them into the SERP itself without having to switch tabs or screens.

Best bits:

  • Relatable keyword suggestions
  • Data displayed within the SERP
  • Lightweight tool extension

The Keyword Surfer tool is perfect for those who want to conduct basic keyword research on the go.

  1. Ubersuggest – All-in-One SEO Keyword Analysis Tool

Ubersuggest is one of the cleanest user interfaces, making it easier to learn and study the robust keyword details & metrics shown by it. Again, being a premium platform, the free version only allows limited searches per day, but that will be enough for conducting keyword research for small projects.

Best bits:

  • Displays SEO difficulty
  • Idea suggestions based on popular keywords
  • Shows search volume
  • Breaks down complex metrics in an easy way

All this makes Ubersuggest the All-in-one tool for keyword analysis, thus making it great for even budding marketers.

  1. AnswerThePublic – Know People’s Questions

AnswerThePublic is probably one of the best tools for understanding viewers’ questions and searches. This tool uniquely simply showcases data from Google. When a keyword is entered, it returns a long list of questions and comparisons based on the keyword. This helps get a viewer’s perspective on the topics.

Best bits:

  • Organized results
  • Multiple ways to display data

AnswerThePublic is ideal for researching blog content and helps writers match their content with the viewers’ intent.

6. Moz Keyword Explorer – Clean UX With Smart Metrics

Moz Keyword Explorer is a paid tool that offers a certain number of free monthly searches. This tool is suitable for those looking for impactful insights regarding their keyword analysis with detailed keyword volume & priority score. Aspects like search volume, keyword difficulty, and organic click-through rate are taken into consideration for calculating the priority score.

Best bits:

  • Keyword prioritization
  • Competitive research
  • Keyword difficulty
  • Comprehensive SERP analysis with improvement tips

The Moz Keyword Explorer makes it easy to identify keywords for a balanced approach, and its Priority score is a standout feature for that extra edge in the research.

8. KeywordTool.io – Long-Tail Keywords at Scale

Long-tail keywords are phrases that make them more specific, thus allowing us to target niche demographics. KeywordTool.io is one of the best generators of such long-tail keywords, especially useful for multiple platforms like YouTube, Amazon, Facebook, App Store, Bing, etc.

Best bits:

  • Multi-platform research
  • Data from Google Autocomplete
  • Displays 700+ keyword ideas per search
  • Helps with less-competitive niche keywords

This is a great tool for marketers looking not just for volume but organic keyword traffic.

All-in-all, the free resources mentioned above are sure to help you with keyword-related analysis and SEO research for small to medium tasks and marketing projects.

Conclusion: The Best SEO Agency for You

For any content creator, SEO is the most critical part, and using the right tools will make life a whole lot easier for you. But it’s not just the use of SEO tools but the strategy and selection of target areas that will eventually grow your website rankings. Sigmaflux – the best digital marketing agency will ensure the comprehensive growth of your website on multiple platforms, be it LinkedIn, Google, Facebook, WhatsApp, or any other social media platform.

We at Sigmaflux will take your website to the next level with our creative solutions, unique approach, proven strategies, and track record of delivering the highest level of service and results to our clients. If you wish to boost your rankings and improve your website’s visibility, join hands with Sigmaflux, the top-rated digital marketing company in Mumbai.

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