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26 Keyword Research tools

Every listed tool supports Keyword Research. No reader votes yet, so reviews and saves set the order. 10 have a free way in.

Keyword research means finding the words people type into search engines. It helps you understand what they want and choose topics that can improve search visibility. For example, you can compare “running shoes” with “trail shoes” or spot growing interest in a product.

See the full rankingCompare top 5

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SEO Content Optimization30Competitor SEO Research18Rank Tracking20SEO Audit26Competitor Analysis30Search Performance Analysis16

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4 data-backed ways into the list.

Best reviewed
Ahrefs

The deepest review count here, 17 reviews.

4.7(17)
Cheapest paid
Keywrds.ai

Lowest monthly entry price on the list.

$19/mo
Most saved
Ubersuggest

One of the most-saved tools here.

3 saves
Best free option
Semrush

The 2nd highest-ranked tool with a free plan.

0 votes

Top 5, side by side

The 5 most-voted tools on the facts readers ask about.

Top 5 tools comparison
Fact
#1
Ahrefs
#2
Semrush
#3
Ubersuggest
#4
Serpstat
#5
Frase
Reader votes00000
Rating4.7(17)4.3(3)5.0(2)5.0(2)4.5(2)
Pricing modelFreemiumFreemiumFreemiumFreemiumPaid
Starts at$29 per monthCustom pricingNot listed$50 per monthCustom pricing
Free way inYesYesYesYesNo
Saves90300
Added20262025202620262025

What this costs

Here’s how all 26 tools break down by starting price.

Median entry price $41/moCheapest paid $19/moFree plan available 10 of 26
BoostedSponsored, does not affect rank

Your tool, in front of 26 competitors

Paid placements appear above the ranking, labelled honestly.

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All 26 tools

Ordered by reviews and saves until readers vote.

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Showing all 26 tools. No reader votes yet, so reviews and saves set the order, then A to Z.

1
Ahrefs
VerifiedMust try
4.7(17)added 2026
Freemium

Paid from $29 per month

Save
9
2
Semrush
4.3(3)added 2025
Freemium

Custom pricing

Save
0
4
Serpstat
5.0(2)added 2026
Freemium

Paid from $50 per month

Save
0
5
Frase
4.5(2)added 2025
Paid

Custom pricing

Save
0
6
Surfer
4.5(2)added 2026
Paid

Custom pricing

Save
0
7
Moz
Verified
No reviews yetadded 2026
Freemium

Paid from $49 per month

Save
1
8
Botify
No reviews yetadded 2026
Paid
Save
0
9
BrightEdge
No reviews yetadded 2026
Paid
Save
0
10
BrightLocal
No reviews yetadded 2026
Paid

From $41 per month

Save
0
11
Clearscope
No reviews yetadded 2026
Paid

From $129 per month

13
INK
No reviews yetadded 2025
Freemium
14
Keywrds.ai
Cheapest
No reviews yetadded 2025
Paid

From $19 per month

15
Koala AI
No reviews yetadded 2025
Paid

From $25 per month

16
Mangools
No reviews yetadded 2026
Paid
17
Nightwatch
No reviews yetadded 2026
Paid

From €948 per year

18
RightBlogger
No reviews yetadded 2025
Freemium

Paid from $588 per year

19
SE Ranking
No reviews yetadded 2026
Paid

From $50 per month

21
SEO PowerSuite
No reviews yetadded 2026
Freemium

Paid from $149 per year

22
SpyFu
No reviews yetadded 2026
Paid
23
Tailwind
No reviews yetadded 2026
Freemium
24
WebCEO
No reviews yetadded 2026
Paid

From $36 per month

26
WriterZen
No reviews yetadded 2026
Paid

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Community Discussion

Which tool do you use for Keyword Research, and why?

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3 decisions

How to choose Keyword Research tools

Start with the job you need to finish. You may want quick topic ideas, deeper competitor research, help planning content, or a clearer view of changing demand. The right choice depends on which of those matters most in your daily work.

  1. Find keywords and market trends

    This group suits early research, from exploring search interest to studying a wider market. It can help you choose topics before you create content or plan a campaign.

    • Google Trends helps you explore and compare changing search and consumer trends.

    • Serpstat connects keyword research with market, competitor, and paid search planning.

    • Mangools ties keyword discovery to competitor research, rankings, and search performance.

  2. Plan and create content

    Choose this route when keywords need to become useful articles or a broader content plan. It keeps research close to writing, topic ideas, and content improvement.

    • INK turns keyword research into content planning, research, writing, and strategy.

    • Keywrds.ai helps you find keywords and People Also Ask topics for new content ideas.

    • BrightEdge connects keyword research with content analysis and on-page search work.

  3. Study search visibility and competitors

    This group fits deeper search work, including competitors, links, indexing, local search, and visibility in artificial intelligence search. Pick the focus that matches the kind of search presence you manage.

    • Ahrefs helps you study competitor search activity, backlinks, and visibility in artificial intelligence search.

    • Ubersuggest combines keyword research with competitor, backlink, and search visibility analysis.

    • Moz supports keyword research alongside competitor, backlink, local, e-commerce, and index coverage work.

4 questions

Common questions

Can I start keyword research for free?

Yes. Ahrefs, Frase, and INK have free plans. Mangools, Moz, Serpstat, and Clearscope offer free trials.

Which tools help with competitor research?

Ahrefs, Frase, Ubersuggest, Serpstat, Moz, Clearscope, Google Trends, and Mangools cover competitor analysis or competitor search research.

Which tools help turn keywords into content?

INK and Keywrds.ai connect keyword research with content creation and research. BrightEdge and Mangools also support content improvement, while Frase and Clearscope cover content analysis and artificial intelligence writing.

Which tools cover artificial intelligence search visibility?

Ahrefs, Frase, Ubersuggest, Botify, BrightEdge, and Clearscope analyze or improve presence in artificial intelligence search.