Free Keyword Research Tool Moz: How to Find High-Opportunity Keywords Without Paying a Cent
The free keyword research tool from Moz gives you access to over 1.25 billion keyword suggestions inside its Keyword Explorer platform, at no cost for up to 10 queries per month. It scores each keyword by difficulty, opportunity, and priority so you can focus on terms that are actually worth targeting. This post walks you through every major feature, how it stacks up against other free options, and how to get the most out of it for real SEO results.

1. What Is the Moz Free Keyword Research Tool and How Does It Work?
The Moz keyword research tool is built into Keyword Explorer, Moz’s flagship keyword intelligence platform. A free Moz account gives you 10 keyword searches per month, each returning up to 1,000 suggestions pulled from a database of more than 1.25 billion keywords. You type in a seed term, and Keyword Explorer returns monthly search volume, keyword difficulty (scored from 0 to 100), organic click-through rate estimates, and a composite Priority score that weighs all three signals together.
What makes the Moz Learn Center approach different from basic tools is the Priority metric. Instead of making you manually cross-reference difficulty against volume, Moz does the math and tells you which keywords give you the best return relative to your site’s current authority. That is genuinely useful for anyone who does not want to spend hours in spreadsheets.
The free tier also surfaces related keyword suggestions, question-based keywords, and SERP analysis for the top 10 results on any query. You can see what pages are ranking, what their Domain Authority scores look like, and whether a keyword is realistically winnable for a site at your level. If you want to go deeper, you can also check keyword research for your business using several complementary free platforms alongside Moz.
2. How to Assess the Value of Your Target Keywords in Moz Keyword Explorer
Knowing a keyword’s search volume is only half the picture. Moz Keyword Explorer shows you keyword value assessment metrics that most free tools skip entirely. The three you need to understand are Difficulty, Opportunity, and Priority.
- Keyword Difficulty (KD): A 0-100 score estimating how hard it will be to rank on page one based on the link profiles of the pages currently ranking. Below 30 is generally achievable for newer or lower-authority sites. Above 60 and you are competing with well-established domains.
- Opportunity Score: This reflects how much of the organic click-through rate is up for grabs. A keyword where the top result has low click-through rate signals that searchers are not satisfied with the existing answers, which is a door you can walk through.
- Priority Score: A composite of volume, difficulty, and opportunity weighted against your site’s own authority. This single number tells you where to focus first. Many SEO practitioners treat the Priority score as their primary filter when building a keyword list.
When you are evaluating target keyword value, always look at all three metrics together rather than chasing volume in isolation. A keyword with 50,000 monthly searches and a KD of 80 is not a realistic target for most sites. A keyword with 2,000 searches, a KD of 25, and a high Opportunity score is a much smarter starting point. This is the kind of keyword assessment strategy that separates sites that actually rank from sites that only hope to rank.
3. Identify Keywords Within Striking Distance Using Moz Data
One of the most practical things you can do with a free Moz keyword tool is find terms your site is already close to ranking for. These are called “striking distance” keywords, typically terms where your page sits in positions 5 through 20 on Google. A small content improvement or a handful of links can push them to page one.
Inside Keyword Explorer, you can filter by your own site’s ranking positions by connecting your site to Moz’s rank tracking. On the free plan, this is limited, but you can still paste in keywords you suspect you are near-ranking for and review the SERP breakdown to see where you fall. If your page is position 11 and the pages above you have lower Domain Authority scores, that is a clear signal to update the content, tighten the on-page optimization, and build a few targeted links.
Striking distance keyword research is often more valuable than chasing brand-new terms because the work required is much smaller. You have already done the hard part of getting Google to notice the page. Targeting these near-ranking keywords for improvement can produce results in weeks rather than months. For a broader view of which keyword research platforms for local SEO surface striking distance data well, it is worth comparing a few tools side by side.

4. Expand Your Keyword Strategy with Moz Keyword Suggestions
Starting from a single seed keyword, Moz Keyword Explorer generates hundreds of keyword strategy expansion ideas organized by relevance, volume, and difficulty. The suggestions tab returns terms that are semantically related to your seed, including long-tail variants, question phrases, and adjacent topics that your competitors may have missed.
Here is a practical workflow for expanding a keyword strategy using the free Moz keyword research tool:
- Enter your primary seed keyword and note the top 20 suggestions by Priority score.
- Switch to the “Questions” filter to surface question-based queries. These are ideal for FAQ sections, featured snippet targeting, and “People Also Ask” capture.
- Use the “Broadly Related” filter to find topic clusters around your seed. These help you plan a content hub rather than isolated posts.
- Export the results (free accounts can export limited rows) and organize by difficulty tier: easy wins, medium-effort targets, and long-term aspirations.
- Repeat the process with 2-3 different seed keywords to cross-reference which terms appear repeatedly. High-frequency terms across multiple seeds deserve priority attention.
Expanding your keyword strategy this way keeps your content plan organized and intentional rather than random. Every piece you publish addresses a specific search intent, which is exactly what Google’s Helpful Content Guidelines reward. You can also use our free keyword finder to layer in additional keyword ideas that complement what you pull from Moz, especially for local and long-tail variations.
5. Spot Content Creation Ideas with Moz Keyword Explorer’s Question and Topic Filters
Good content starts with good keyword data, and the Moz keyword content ideas features make it easy to move from research to a working editorial calendar. The Questions filter inside Keyword Explorer returns queries phrased as questions, which map directly to content formats like how-to guides, comparison posts, FAQ sections, and definitional articles.
Beyond questions, the tool also shows you which SERP features appear for a given keyword: featured snippets, image packs, local packs, and “People Also Ask” boxes. Each SERP feature is a content opportunity in disguise. If a keyword triggers a featured snippet and the current snippet is thin or poorly structured, you can write a better answer and capture that position. If it triggers a local pack, that tells you the intent is local and a location-specific content strategy is warranted.
The Moz Blog has published extensively on how to read SERP features as content signals, and it is worth reviewing their breakdown of snippet types before you plan your content calendar. When you know which format Google wants for a query, you can write directly to that format rather than guessing.
For anyone running an SEO SaaS for small businesses, turning keyword data into a consistent publishing schedule is where the real compounding value shows up. One post ranks, earns a few links, and lifts the authority of everything else on your site.
6. How the Moz Free Keyword Tool Compares to Other Free Keyword Research Tools
The free keyword research tool landscape is crowded, and it is worth knowing where Moz fits relative to the alternatives before you commit your research time to any single platform. Here is a realistic comparison of the major free options:
- Moz Keyword Explorer (free): 10 queries per month, 1,000 suggestions per search, Priority scoring, SERP analysis, question filters. Strong on quality metrics, lighter on raw data volume at the free tier.
- Google Keyword Planner: Technically free but designed for Google Ads, not organic SEO. Volume ranges are wide and often misleading for organic intent. The Google keyword research tool works well as a volume sanity-check but should not be your only source.
- Ahrefs Free Keyword Generator: Returns up to 150 keyword ideas per search with basic KD scores. No account required. Good for quick brainstorm sessions, limited for deep research.
- Semrush free keyword research tool: 10 requests per day on the free plan, with volume, KD, CPC, and competitive density. The Semrush free plan is generous compared to most tools and worth using in parallel with Moz.
- Mangools keyword research (KWFinder free tier): 5 lookups per 24 hours, 25 related keywords per search. The interface is clean and beginner-friendly, but the limits are tight for serious research.
- Ubersuggest free plan: 3 searches per day. Keyword ideas, content ideas, and basic backlink data are included. Useful as a supplement.
The smart approach is to use Moz as your primary free keyword research platform for its Priority scoring and SERP analysis, then cross-reference high-priority targets in the Semrush free keyword tool and Google Keyword Planner for volume validation. If you want a fuller rundown of what each platform offers, our comparison of keyword research tools covers the major contenders in detail.
7. How to Use Moz Keyword Explorer for Local SEO Keyword Research
Most coverage of the Moz keyword explorer for local SEO focuses on broad national terms, but the tool is equally useful for local keyword research when you know how to filter correctly. Local keyword research means targeting terms that include a city name, neighborhood, or geo-modifier alongside a service or topic.
Here is how to adapt Moz Keyword Explorer for local keyword discovery:
- Enter a seed keyword that includes your city or region (e.g., “plumber Denver” or “electrician near Austin”) and review the keyword suggestions for location-specific variants.
- Use the SERP analysis tab to see whether local pack results appear for that keyword. If they do, you know Google treats it as a local-intent query and a Google Business Profile is part of the ranking equation, not just a website.
- Filter for long-tail local keywords with lower difficulty scores. These are often less competitive than the head terms and convert better because the searcher’s intent is highly specific.
- Check the “Organic CTR” metric. Local queries often show lower CTR because maps results capture clicks above the organic listings. If CTR is low, you need a local pack presence, not just a blog post.
For hyperlocal keyword discovery beyond what Moz surfaces, pairing it with a tool built specifically for local search data makes sense. Our post on local keyword research covers how to find hyperlocal terms that most keyword tools miss entirely.
8. Power Your Keyword Research Workflow: Getting More from Moz Pro
If the free Moz keyword tool has shown you what is possible and you want to remove the query limits, Moz Pro keyword research unlocks significantly more data. The paid plans increase your monthly queries from 10 to 150 or more depending on the tier, remove the suggestion cap per search, and add rank tracking, site auditing, and link research into one workspace.
For small business owners and SEO practitioners managing a handful of sites, the free tier of Moz Keyword Explorer handles the core research workflow well. You get enough data to build a solid content calendar, identify striking distance opportunities, and validate whether a keyword is realistically achievable. The limitation hits when you are researching dozens of new topics every month or managing multiple client sites simultaneously.
That is the point where a purpose-built content automation tool becomes more practical than manual research at scale. Rather than spending hours every month in keyword tools across different platforms, automating the research and publishing workflow lets you focus on strategy and results instead of production. As Search Engine Journal has covered repeatedly, consistent publishing frequency is one of the clearest signals of a site that is invested in organic growth, and that consistency is hard to maintain manually over time.
Whatever tools you use, the keyword research process itself follows the same logic: find terms your audience is searching for, confirm they are achievable given your site’s current authority, match the content format to the search intent, and publish consistently. Moz Keyword Explorer, even at the free tier, gives you everything you need to complete steps one through three.
If you want the publishing side handled automatically, see how AutoRankr can help you turn keyword research into a steady stream of published, optimized content without building a content team. Our AI agent Inky handles keyword research, writing, schema markup, and WordPress publishing on a schedule you set, so the compounding effect of consistent SEO content actually happens rather than staying on your to-do list.
Ready to put your keyword research to work? AutoRankr free trial for 3 days, no credit card needed gets you started with AI-powered, keyword-researched content publishing on your own WordPress site, built on the same keyword intelligence principles this post covers.
Frequently Asked Questions
Is the Moz keyword research tool really free?
Yes. Moz Keyword Explorer offers a free tier that includes 10 keyword searches per month with up to 1,000 suggestions per query. You need to create a free Moz account to access it. The free plan includes keyword difficulty scores, volume estimates, opportunity scores, and SERP analysis. It does not require a credit card to sign up.
How accurate is Moz’s keyword difficulty score?
Moz’s Keyword Difficulty score is based on the Domain Authority and Page Authority of the pages currently ranking in the top 10 results for a given query. It is a directional estimate rather than a precise prediction. Most SEO practitioners treat it as a reliable relative signal: a KD of 20 is meaningfully easier than a KD of 70, even if the exact number is not a guarantee of ranking outcome.
What is the difference between Moz Keyword Explorer and Google Keyword Planner?
Google Keyword Planner is designed for paid search advertisers, so its data reflects ad intent and often shows broad volume ranges rather than precise monthly figures. Moz Keyword Explorer is built for organic SEO and adds metrics like keyword difficulty, click-through rate opportunity, and a Priority score that Google Keyword Planner does not provide. For organic content strategy, Moz gives you more actionable data.
Can I use the Moz free keyword tool for local SEO?
Yes. You can enter geo-modified keywords directly into Moz Keyword Explorer, such as “electrician Chicago” or “landscaper Austin,” and review the suggestions, difficulty scores, and SERP features for those local queries. The SERP analysis tab shows whether a local pack appears, which tells you whether a Google Business Profile is required to compete alongside a content strategy.
How does Moz Keyword Explorer compare to Semrush for free keyword research?
Both tools offer free tiers with meaningful limitations. Moz gives you 10 searches per month with richer per-keyword metrics including Priority scoring. Semrush’s free keyword research tool allows 10 requests per day with volume, keyword difficulty, CPC, and competitive density data. Using both in parallel is a smart approach: Moz for quality scoring and SERP analysis, Semrush for higher daily query volume and competitive positioning data.