SEO tools

SEO keyword research tools: free and paid, compared

Which keyword tool to use depends on whether you need Google’s own numbers, competitor keywords or question clusters. Here is the shortlist, with what each costs.

No minimum contract · Itemised monthly deliverables · UK team, Fareham HQ · Reporting from your own GA4 & Search Console

Quick answer

Free

Keyword Planner, Trends, Search Console

$12/mo

AlsoAsked for question clusters

$129/mo

Ahrefs Lite for competitor keywords

Scroll for the full shortlist with free tiers and prices.

The shortlist

Keyword research tools

Free Google tools first, then paid platforms for competitor data.

Prices are as shown on vendor sites on 19 October 2026 and change often; we have no commercial relationship with any tool listed.

Google Keyword Planner icon

Google Keyword Planner

Best for: Volume ranges straight from Google

Google’s keyword volume and forecast tool inside Google Ads.

Free: Free with a Google Ads accountPrice: Free

Google Trends icon

Google Trends

Best for: Seasonality and rising topics

Relative search interest over time and by region.

Free: FreePrice: Free

AlsoAsked icon

AlsoAsked

Best for: Question research for guides and FAQs

Maps People Also Ask questions into clusters for content planning.

Free: Limited free searchesPrice: $12/mo (Basic)

AnswerThePublic icon

AnswerThePublic

Best for: Brainstorming content angles

Visualises autocomplete questions and phrases around a seed keyword.

Free: Free daily limitPrice: US$10/mo billed yearly

Keywords Everywhere icon

Keywords Everywhere

Best for: Keyword data while you browse

Browser extension that shows volume, CPC and related keywords inside Google and other sites.

Free: Free limited featuresPrice: $84/yr (Bronze credits)

Ubersuggest icon

Ubersuggest

Best for: Low-cost all-rounder for small sites

Keyword research, site audit and rank tracking from Neil Patel.

Free: Limited free account; 7-day trialPrice: US$29–99/mo; lifetime plans offered

KWFinder (Mangools) icon

KWFinder (Mangools)

Best for: Long-tail research on a budget

Long-tail keyword research with difficulty scores, part of Mangools.

Free: Free account with limitsPrice: Mangools bundle — see mangools.com

How we use them

Search Console for what already works, Keyword Planner and Trends for demand and seasonality, Ahrefs or Semrush for competitor gaps and clustering, AlsoAsked for questions. The method is in our keyword research guide; our own site was rebuilt from a 9,999-keyword Ahrefs export using it.

What the numbers mean

Volumes are modelled estimates averaged over twelve months and differ between tools. Use them for relative comparison, not forecasting.

FAQ

Questions we get asked

What is the best free keyword research tool?

Search Console for your own data; Keyword Planner and Trends for demand; AlsoAsked for questions.

Which paid keyword tool is best?

Ahrefs or Semrush for depth; Mangools or SE Ranking for value on a single site.

Can AI tools do keyword research?

They suggest topics and phrasing but have no live volume data; pair them with a keyword tool.

Can you do the research for us?

Yes — keyword and page mapping is the first deliverable in every package.

Rather have someone run the tools for you?

Our free growth plan uses all of these on your site. You get the findings; we only get paid if you hire us.

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