Best tool for · SEO
What's the best keyword research tool?
Find what people search for.
Short comparison
| Tool | Pricing model | Free plan | Starting price | Difficulty | Output rights | Best for |
|---|---|---|---|---|---|---|
| Semrush | Paid plans only | Trial only | See official site | 3/5 | – | Full-scale SEO research |
| Ahrefs | Paid plans only | No | See official site | 3/5 | – | Backlink and competitor research |
| Ubersuggest | Free plan + paid plans | Yes | See official site | – | – | Cheap keyword ideas |
| Google Keyword Planner | Free | Yes | Free | – | – | Free search volume estimates |
| AnswerThePublic | Free plan + paid plans | Yes | See official site | – | – | Finding question-style topics |
| Keywords Everywhere | Paid plans only | No | See official site | – | – | Keyword data while you browse |
Ranked by fit for solo businesses: tools we profile in depth first, then those used in our research notes, then the rest. Affiliate status never changes the order. See all 6 keyword research tools with a ranked shortlist.
Quick answers
What's the best keyword research tool?
Our overall pick is Semrush: Full-scale SEO research.
What's the best free keyword research tool?
Ubersuggest, which has a free plan or free version. Cheap keyword ideas.
Which keyword research tool is easiest for beginners?
Ahrefs, rated 3/5 to learn.