Free plans only

5 Best Free Keyword Research Tools of 2026

By the Rankozo research desk · Updated November 9, 2026

5 of the 9 tools in our best keyword research tools ranking offer a permanent free plan. Keywords Everywhere scores highest among them at 8.6 out of 10.

1. 01

   Keywords Everywhere

   Site owners and bloggers who want keyword volumes while they browse for the lowest monthly cost.

   Free extension features; Bronze $84 per year ($7 per month), Silver $168, Gold $480, Platinum $1,440 per year

   Full entry, No. 1 overall

   Paid from

   $7

   Score 8.6

2. 02

   Ahrefs

   Freelance SEOs who need keyword difficulty, traffic potential and competitor data in one place.

   Ahrefs Free for site owners; Starter $29 per month; Lite $129, Standard $249, Advanced $449 per month

   Full entry, No. 2 overall

   Paid from

   $29

   Score 8.5

3. 03

   Mangools KWFinder

   Solopreneurs and freelance SEOs who want a simple interface and local keyword data.

   See vendor pricing (USD check pending); free account with 5 lookups per 24 hours

   Full entry, No. 3 overall

   Paid from

   Free plan

   Score 8.4

4. 04

   Semrush

   Freelancers and small businesses that want keyword research, SEO and AI visibility in one subscription.

   Free account with 10 reports a day; SEO plan $117.33 per month billed annually ($139 monthly); 7-day free trial

   Full entry, No. 7 overall

   Paid from

   $117.33

   Score 8.2

5. 05

   Google Keyword Planner

   Site owners and advertisers who want keyword ideas from Google at no cost.

   Free with a Google Ads account

   Full entry, No. 9 overall

   Paid from

   Free

   Score 7.9

Scores and prices come from our Best Keyword Research Tools ranking, which uses one method for every tool. Questions or corrections: editorial@rankozo.com