Free Keyword Research: The Google-Only Method, Step by Step

Free keyword research means finding the phrases people type into Google, and judging which ones your site can win, without paying for an SEO suite. The method is a short loop: collect ideas from Google itself, size them in Google Keyword Planner, check the direction in Google Trends, then test them against your own site in Google Search Console. That loop covers a small site well. It breaks once you need competitor keywords, difficulty scores, or lists longer than a few dozen terms.

Free keyword research tools and the job each one does

No single free tool does the whole job. Each one answers one question, and the trick is to use them in order rather than jumping between tabs. Autocomplete tells you how people phrase a need. Keyword Planner gives you a rough size. Trends shows whether interest is growing, fading or seasonal. Search Console shows what your own pages already get shown for. Free tiers and free checkers from SEO tools add more data, such as SE Ranking's free keyword difficulty checker, but only for a handful of lookups a day.

Start with a seed list of five to ten plain phrases your customers would use. Write them the way a customer talks, not the way your industry does. Jargon hides demand. A plumber thinks backflow prevention; a homeowner types water coming up the drain.

Step 1: Mine Google itself for real phrasing

Google's autocomplete predictions reflect real searches that have been done on Google, weighted by the language and location of the query, trending interest and your past searches ^[1]. That makes the search box the cheapest idea generator you have. Because your own history shapes the predictions, run these checks in a private window.

1. Type each seed phrase slowly and note every prediction.
2. Add a letter after the seed (seed a, seed b) and note new endings.
3. Put how, best, vs or for in front of the seed.
4. Run the search and copy the People also ask questions and the related searches at the bottom.
5. Paste everything into one sheet, one phrase per row, and delete duplicates.

Google Keyword Planner keyword research, step by step

Keyword Planner lives inside Google Ads and is meant for ad campaigns, but it works for SEO sizing. Google says you must enter billing information and complete your account setup before keyword suggestions open ^[2]. You don't have to run an ad. The steps below follow Google's own help page.

1. In Google Ads, open the Tools menu and choose Keyword Planner.
2. Select Discover new keywords, then start with keywords (separate phrases with a comma and space) or start with a website.
3. Enter a keyword and a URL together; Google notes this returns more ideas than a URL alone.
4. Click Get results, then uncheck the categories that don't fit (other colors, other services, other cities).
5. To size a list you already have, choose Get search volume and forecasts and paste it or upload a CSV.

Each keyword must be 80 characters or fewer and ten words at most. Very low-volume and sensitive keywords can't be discovered or forecast, so a blank result does not prove nobody searches the phrase. Treat the monthly figure as a bracket for comparing your ideas against each other, not as a traffic promise. Relative size is what matters here. A phrase with a smaller bracket but a clear buying intent often beats a bigger, vaguer one.

Check direction and seasonality in Google Trends

Volume tells you size; Trends tells you direction. Open Google Trends, search your best phrase, then type a second phrase in the Compare box. You can compare up to 8 groups of terms at once and up to 50 terms in each group ^[3]. Set the country and a five-year range to see seasonal peaks.

Two rules keep the reading honest. First, the chart shows relative interest, not search counts, so use it to choose between phrasings, not to forecast visits. Second, Trends returns nothing for misspellings, spelling variants, synonyms or plural and singular versions of your term, so compare the exact phrases you plan to target. Pool cover versus pool covers is a real choice. Trends won't settle it.

Website keyword research with Search Console

Once your site has a few months of data, the best free keyword source is your own. The Performance report shows clicks, impressions, click-through rate and average position, and the Queries tab groups that data by what people actually typed ^[4]. Our guide to keyword research in the Search Console Performance report covers the full workflow.

1. Open Performance, then Search results, and set the date range to the last three months.
2. Turn on Impressions and Average position.
3. Sort queries by impressions and look for an average position around 8 to 20.
4. Click a query, switch to the Pages tab and find the page that ranks.
5. Improve that page for the query: answer it in the heading and the first paragraph.

A Custom (regex) filter groups near-identical phrasings so one topic doesn't look like ten. Know the limits before you build a plan on it. Search Console covers only verified sites you own, shows no search volume and no competitor data, keeps 16 months of history and stops report tables and exports at 1,000 rows. It also cannot find new keywords from nothing: a page that doesn't exist yet earns no impressions.

A worked example: a local dog groomer

Take a groomer in a mid-size US city with a five-page site. Say autocomplete on dog grooming returns endings like near me, prices and at home. People also ask adds how often should a dog be groomed. Suppose Keyword Planner puts mobile dog grooming in a lower bracket than dog grooming near me, but the groomer offers mobile visits, so it stays on the list.

Suppose Trends shows interest in dog grooming rising every spring. That sets the publishing date: the new service page goes live before the peak. Search Console then reveals the homepage already gets impressions at an average position of 14 for dog nail trimming, a service with no page of its own. That becomes page two. Four tools, one afternoon, a short list of real targets. Nothing was paid for.

Where free keyword research stops

The free loop has three hard edges. Difficulty. None of the Google tools tells you how hard a phrase is to rank for. Competitors. No free Google tool shows the keywords another site ranks for, and Search Console sees only your own property. Scale. The free tiers of paid tools ration lookups: Semrush Free gives 10 Keyword Magic Tool reports a day with 10 results each and no export, Serpstat Free 10 searches a day, and Ubersuggest Free 3 searches a day.

Ahrefs' free Keyword Generator shows 150 ideas per search across Google, Bing, YouTube and Amazon, but the Ahrefs Free plan has no Keywords Explorer, and the full Keywords Explorer workflow with Traffic Potential is on paid plans. SE Ranking has no free plan, though its keyword difficulty and search volume checkers are free.

So the threshold is concrete. If you publish more than a few pages a month, research for clients, or need to know what a rival ranks for, you will spend more time stitching free tools together than writing. A big site also hits the 1,000-row ceiling in Search Console. That is the point to add a dedicated tool. Keep Search Console either way. It stays free and stays useful. The products below do the whole loop in one place; our comparison of keyword research tools shows how they divide the job.

New to the method itself? Start with how to do keyword research and come back for the free tools.

The bottom line

Free keyword research is enough for a small site that publishes a few pages a month. Run the loop in order: autocomplete for phrasing, Keyword Planner for a rough size, Trends for direction, Search Console for what you already rank near. The free way stops at difficulty, competitor keywords and volume of lookups. When those become your daily questions, a paid tool saves more hours than it takes to learn.