Free Keyword Research Tools (2026): What's Actually Free

You do not need to pay for keyword research to start — but you should know exactly where “free” ends, because most tools quietly cap you fast. After eleven years doing this, here are the keyword tools that are genuinely free in 2026, what each is actually good for, and the honest point where paying starts to make sense.

The genuinely free tools

These cost nothing and earn their place:

• Google Search Console — the most underrated free keyword tool there is. If you already have a site, it shows the real queries you rank for and where you sit on page two, ready to be pushed to page one. Start here.
• Google Keyword Planner — free with a Google Ads account. Built for advertisers, so volumes come in ranges, but it’s straight from Google and covers any niche.
• Google Trends — free, and the fastest way to spot whether a topic is rising, seasonal or fading before you commit to it.
• Answer Socrates / AnswerThePublic — surface the actual questions people ask around a topic. Answer Socrates is generous on the free tier; AnswerThePublic now limits free searches, so use it sparingly.
• Keyword Surfer — a free Chrome extension that shows volumes right in the Google results as you search. Great for quick, in-context checks.
• Ubersuggest — still around, but the free web tier is now tight (about 3 searches a day). The Chrome extension is the better free route for casual lookups.

One honest note: Keywords Everywhere, once the go-to free extension, moved to a paid credit model years ago — it’s good, but it’s no longer free.

The free tools I built

While we’re on free: I make a small set of free tools aimed at the newer half of search — getting found by AI answer engines, not just Google. They’re not classic keyword-volume tools, but if AI visibility is on your radar they’re a genuinely useful, free complement:

• The Citability Scorer grades how quotable a page is for ChatGPT, Perplexity and friends.
• The GEO Tool Finder points you to the right AI-visibility tool in about a minute.
• The AI Crawler Checker tells you whether the AI bots can even reach your site.

All free, no signup.

Where paying starts to pay off

Free tools are perfect to start, but they hit a ceiling: shallow data, daily caps, and no keyword difficulty or intent to speak of. The moment keyword research becomes real work, one paid tool saves hours. The one I use is Semrush — and it has a free account (about 10 searches a day, no card) so you can test its depth before paying. Its Keyword Magic Tool is where free lists turn into a real content plan, with difficulty, intent and clustering the free tools simply don’t give you.

Try the free Semrush account→

The strategy I actually use

You can do excellent keyword research for almost nothing if you sequence it right:

1. Start in Search Console (if you have a site) to find keywords you already rank for on page two — the fastest wins.
2. Expand with Keyword Planner and Answer Socrates to find new topics and the questions around them.
3. Sanity-check demand in Google Trends so you don’t build for a dying topic.
4. Graduate to a paid tool only once you need difficulty, intent and competitor data — then use a free trial or free tier before you commit.

That mix costs little to nothing and covers the vast majority of what a growing site needs. For the competitor side — seeing exactly what rivals rank for — see the Organic Research guide.

See Semrush plans and pricing→

Frequently asked questions

What is the best free keyword research tool in 2026?

For a site with existing content, Google Search Console is the best free option — it shows the real queries you already rank for. For brand-new sites, Google Keyword Planner is the best free tool for volume and CPC data. Both are genuinely free.

Is Ubersuggest still free?

Partly. Ubersuggest's free web tier is now limited to roughly 3 searches a day, though the Chrome extension still gives unlimited basic lookups. For heavier use it's a paid tool.

Can I do keyword research without paying at all?

Yes. Combining Google Search Console, Keyword Planner, Google Trends and a question tool like Answer Socrates covers most of what a growing site needs for free. You only need a paid tool once you want keyword difficulty, search intent and competitor data.

Does Semrush have a free version?

Yes — a free account with about 10 searches a day and one project, no credit card. It is limited, but enough to sample the data and the Keyword Magic Tool before deciding whether the paid plan is worth it.