Keywords Tools

Discover free keyword tools to find, analyze, and optimize keywords for SEO. Improve your rankings, traffic, and content performance easily online.

Keywords Tools

Keyword Tools

This category brings together six free keyword tools that cover the full range of keyword research and analysis tasks — from finding new keyword ideas and tracking ranking positions to auditing content for keyword density and exploring domain name options. Every tool runs in the browser without software installation, and all are free to use within the daily limits shown below.

Keyword research is the foundation of organic search performance. Before creating or updating any page, understanding what your audience is searching for, how competitive those terms are, and what type of content Google is currently rewarding for each query is the difference between content that ranks and content that does not. These tools give you the data to make those decisions with confidence.

What is in the Keywords Tools category

The six tools in this category cover distinct stages of the keyword workflow — from initial research through to content optimization and ranking monitoring. The table below summarizes what each tool does and when to reach for it:

ToolBest used forKey input / output
Keyword Research ToolStarting keyword research from scratch, finding search volume, difficulty, competition and CPC for any keyword or URL.Seed keyword or URL → keyword ideas with volume, difficulty, competition and CPC data.
Related Keywords FinderExpanding a seed keyword into semantically related terms, subtopics, and supporting phrases to broaden content coverage.Seed keyword → list of contextually related search terms and phrase variations.
Keyword Density CheckerAuditing existing or draft content for keyword frequency, detecting overuse (keyword stuffing) or underuse of target terms.URL or pasted text → ranked list of 1, 2 and 3-word phrases with frequency count and density percentage.
Keyword Position CheckerTracking current Google ranking positions for a domain across multiple keywords, with optional competitor comparison.Domain URL + keywords → current Google ranking positions per keyword, with competitor comparison option.
SERP CheckerReviewing the live search results for any keyword to understand what content type Google is rewarding and who is ranking.Keyword + country → top ranking pages, positions and current SERP landscape.
Keywords Rich DomainsGenerating keyword-informed domain name ideas across multiple extensions for new websites or brand naming projects.Keyword + extension → available domain name suggestions containing the target keyword.

Tool descriptions

Keyword Research Tool

The Keyword Research Tool is the starting point for any SEO or content project. Enter a seed keyword or a URL and the tool returns a list of keyword ideas with four key metrics for each: search volume (monthly demand), keyword difficulty (how hard it is to rank on page one), competition (paid advertiser activity, a proxy for commercial value), and CPC (cost-per-click, which indicates how much advertisers pay for traffic from that term).

Use it to build initial keyword lists, discover long-tail opportunities, evaluate whether a topic is worth targeting given your site's authority, and plan content around the terms your audience is actively searching for.

Related Keywords Finder

The Related Keywords Finder takes a single seed keyword and returns a list of contextually related search terms — phrases that people searching for your topic are also likely to use. These are not just synonyms: they include subtopic terms, associated questions, and phrase variations that reflect the full range of ways users approach a given subject.

Use it to expand a single content idea into a comprehensive topic plan, identify H2 and H3 subheading ideas, build FAQ sections, and reduce over-reliance on a single repeated keyword. It is particularly effective for building content clusters — groups of interlinked pages that together cover a topic more thoroughly than any single page could.

Keyword Density Checker

The Keyword Density Checker analyses any text or live URL and returns a frequency breakdown of all 1-word, 2-word, and 3-word phrase combinations, along with the percentage each represents of the total word count. It shows you which terms dominate your content and flags any that appear too frequently or not frequently enough.

Use it before publishing new content to check balance, when auditing existing pages that are underperforming, and when reviewing competitor pages to understand the keyword patterns their content uses. The 2 and 3-word phrase breakdowns are often the most actionable, as they reveal how closely a page's natural language aligns with the specific multi-word queries users type.

Keyword Position Checker

The Keyword Position Checker shows where a specific URL ranks in Google search results for any set of keywords you specify, across any country. Unlike automated rank trackers that monitor a fixed list continuously, this tool gives you on-demand position checks with the option to compare your rankings directly against a competitor URL at the same time.

Use it after publishing or updating a page to see whether rankings have moved, to audit a page against all its target keywords in one check, and to identify competitor positions that reveal where you are being outranked and by how much. The multi-keyword input means you can check an entire page's keyword portfolio in a single run.

SERP Checker

The SERP Checker returns the live Google search results for any keyword and country, showing which pages currently hold the top positions. This is primarily a content intelligence tool: before creating a page targeting a specific keyword, reviewing the current top results tells you what content type Google is rewarding (guide, tool page, product listing, comparison, video), what depth and format the leading content uses, and which domains you are competing against.

Use it before starting any new content, to validate keyword intent before committing to a page type, and when reviewing content that is ranking lower than expected — the SERP often reveals why a page is not performing by showing what Google currently prefers for that query.

Keywords Rich Domains

The Keywords Rich Domains tool generates domain name suggestions that contain your target keyword, across a choice of extensions including .com, .net, .org, .co, .us, .info, and .me. It is designed for situations where you are naming a new website, planning a sub-brand, or evaluating domain options before registration.

Use it at the start of a new project to explore what keyword-containing domain names are available, to compare options across extensions, and to find partial match domain names that balance keyword clarity with brand ability. Pair it with the Keyword Research Tool to confirm that the keyword in your chosen domain has real search demand before committing to registration.

Recommended workflows

Starting a new piece of content

StepTool to useWhat to do

1

Keyword Research ToolEnter your topic as a seed keyword. Review search volume, difficulty and CPC. Build a shortlist of primary and supporting keywords.

2

Related Keywords FinderRun your primary keyword through the tool. Group related terms into subtopics — these become your H2 headings and FAQ sections.

3

SERP CheckerCheck what currently ranks for your primary keyword. Identify the content type Google rewards and the depth of the top results.

4

Keyword Density CheckerAfter drafting your content, check that keyword distribution is balanced. Adjust if any term appears too frequently or too rarely.

 

Auditing an existing page that is underperforming

StepTool to useWhat to do

1

Keyword Position CheckerCheck current rankings for the page's target keywords. Identify which terms are on page two or below — these are your improvement priorities.

2

SERP CheckerReview the current top results for each underperforming keyword. Identify whether the content type, depth or format of top results differs from your page.

3

Keyword Density CheckerAnalyse the page's keyword frequency. Check whether target terms appear naturally in key positions — title, first paragraph, headings, and FAQ.

4

Related Keywords FinderIdentify related terms that the page may be missing. Adding coverage of these terms can improve topical depth and help the page rank for additional queries.

 

Launching a new website

StepTool to useWhat to do

1

Keyword Research ToolResearch the primary keywords for your main topic areas. Use search volume and difficulty to prioritise which topics to address first.

2

Keywords Rich DomainsExplore keyword-containing domain options across extensions. Look for short, brandable names that include your primary topic keyword.

3

Related Keywords FinderMap out related terms for each topic area to plan your content architecture — which pages to create and how they relate to each other.

4

Keyword Position CheckerAfter your first pages are live and indexed, run position checks to establish a baseline. Return weekly to measure ranking progress.

 

Keyword research fundamentals

Effective use of these tools depends on understanding a few core principles that apply across all of them:

  • Search intent determines content type — the intent behind a keyword (informational, commercial, transactional, or navigational) determines what type of page should target it. A keyword with informational intent needs a guide or explainer. A transactional keyword needs a tool or purchase page. Mismatching content type to intent is the most common reason well-written pages fail to rank.
  • Difficulty must be matched to authority — keyword difficulty scores are only meaningful relative to your site's own authority. A site with DR 70 can compete for moderate and high difficulty terms. A new site should prioritise low-difficulty long-tail keywords where it can realistically earn first-page positions while building authority.
  • Long-tail keywords outperform head terms for most sites — lower search volume keywords are typically lower competition, faster to rank for, and more likely to convert because they reflect specific user intent. A content strategy built on a broad base of long-tail terms produces more consistent results than one chasing a small number of high-volume head terms.
  • Content clusters outperform isolated pages — a group of interlinked pages that together cover a topic comprehensively builds stronger topical authority than a single page targeting multiple keywords. Use Related Keywords Finder and Keyword Research Tool together to map out clusters before writing.
  • Verification in the SERP is not optional — always check what currently ranks for a keyword before creating content for it. The SERP tells you what Google has decided satisfies user intent for that query. Creating a different content type, at a different depth, or in a different format than what the SERP shows is ranking is a strategic mistake that no amount of on-page optimisation can overcome.

Usage limits

Guest users25 searches per day per tool. No account required.
Registered users100 searches per day per tool. Free to register — higher limit and usage history included.

Each tool has its own daily limit, so a registered account gives you up to 100 searches per tool per day across all six tools in this category. Free registration takes under a minute and also gives you access to usage history across all ToolsPiNG tools.

Frequently asked questions

What are keyword tools and why do I need them?

Keyword tools are utilities that help you discover what your audience is searching for, evaluate how competitive those search terms are, and optimize your content to rank for them. Without keyword data, content planning is based on guesswork. With it, you can make decisions grounded in actual search demand, competitive reality, and the specific phrases your audience uses — all of which are necessary for consistent organic traffic growth.

Which tool should I start with?

If you are starting from scratch with no existing content, begin with the Keyword Research Tool to identify what keywords have demand in your topic area. If you have existing content that is underperforming, start with the Keyword Position Checker to identify which terms are close to page one and the SERP Checker to understand what currently ranks for those queries.

How do search volume, keyword difficulty and competition differ?

Search volume is the average monthly number of searches for a keyword — a measure of demand. Keyword difficulty is an SEO metric estimating how hard it is to rank on page one for that keyword, based on the authority and quality of pages currently ranking. Competition is a paid advertising metric that reflects the number of advertisers bidding on the keyword — it is a proxy for commercial value rather than organic ranking difficulty. All three are available in the Keyword Research Tool.

What is search intent and why does it matter for keyword selection?

Search intent is the underlying purpose behind a search query — what the user is trying to accomplish. The four main types are informational (learning or understanding something), navigational (finding a specific site or brand), commercial (researching options before deciding), and transactional (taking an action). Matching your page type and content format to the intent behind your target keyword is one of the strongest on-page signals you can send to Google. The SERP Checker reveals intent by showing what types of pages currently rank for any keyword.

What is keyword density and how much is too much?

Keyword density is the percentage of times a word or phrase appears in a piece of content relative to its total word count. There is no universally correct target, but most SEO practitioners consider 0.5% to 2% a balanced range for a primary keyword. Above 4% is generally worth reviewing, as high repetition can appear manipulative and harm readability. Use the Keyword Density Checker to identify outliers — both overuse and complete absence — rather than to target a specific percentage.

Can I use these tools to analyze competitor pages?

Yes. The Keyword Density Checker accepts any live URL, so you can analyze a competitor's page to see which terms dominate their content and identify phrases you may be missing. The SERP Checker shows which pages are currently ranking for any keyword, giving you direct visibility into who your competitors are for each term. The Keyword Position Checker accepts a competitor URL alongside your own to compare rankings side by side.

Are all six tools completely free?

Yes. All six tools in this category are free to use within the daily usage limits shown above. No payment or credit card is required. Registering a free account takes under a minute and increases each tool's daily limit from 25 to 100 searches, and gives access to usage history across all tools.