How to choose a free keyword research tool for your task: a beginner’s guide

When choosing a free keyword research tool, beginners should first decide whether they want to find topics, compare trends, or check an existing website’s performance. For question-based keywords, consider AnswerThePublic; for trend comparisons, use Google Trends; for preliminary search volume estimates, consult Google Keyword Planner; and for your website’s current traffic, check Google Search Console. The key is not which tool lists the most keywords, but whether its data answers your question and whether its free features and usage limits meet your needs. Allowances mentioned in older articles may no longer apply.

Choose based on your research task—you do not need to learn every tool at once

• Finding article topics: AnswerThePublic focuses on question-based keywords. Google’s search autocomplete and “People also ask” can also provide related suggestions to help you gather content ideas.
• Comparing two terms: Google Trends lets you compare the relative popularity of terms over time. Tenten’s 2025 overview used two marketing metric terms to illustrate this comparison. Relative popularity is not the same as actual monthly search counts.
• Improving published content: Google Search Console can show which keywords have already brought visitors to your website. It shows how your website is performing, not every possible topic you could cover in your market.

Once you have a long keyword list, check relevance before looking at the numbers

According to the Keyword Planner workflow described by Tenten in 2025, you can enter a seed keyword or website URL under “Discover new keywords,” specify your target language and location, and then review the results. Semrush’s overview from the same year noted that a free Google Ads account was required. These instructions reflect how the tool worked at the time; not every step is guaranteed to match the current interface. Getting a keyword list does not necessarily mean your settings are correct, either.

When reviewing the results, first keep the terms relevant to your product, service, or article topic, then consider what problems searchers want to solve. For example, when researching content about facial masks, you can expand from a core term into related topics rather than cramming every suggested keyword into one article. Search volume can help you gauge demand. However, Keyword Planner is primarily designed for advertising, so its competition and bid data should not be treated as direct measures of organic search ranking difficulty.

Check both the query limits and the data available for free

Some tools let you find keywords for free without providing a full set of metrics. In its 2025 introduction to KeywordTool.io, Tenten noted that the free version offered basic suggestions, but data such as search volume required an upgrade. A tool that is useful for inspiration may not, on its own, provide enough data to help you narrow down your keyword list.

If you want to see both search volume and difficulty, Ubersuggest is worth including in your comparison. A March 2026 article by yesharris stated that it supported Taiwan and Traditional Chinese and that its free plan allowed three keyword searches per day. That was the allowance when the article was published; it may have changed since then. Beginners can start by practicing one task, then find any missing data elsewhere. There is no need to rush into paying simply because a tool offers more types of data.