Best Keyword.io Alternatives in 2026
Updated
20 platforms from SEO tools ranked against Keyword.io on the same published basis.
- 1Keyword.io vs Semrush
- 2Keyword.io vs Ahrefs
- 3Keyword.io vs Google Search Console
- 4Keyword.io vs Screaming Frog SEO Spider
- 5Keyword.io vs Mangools
- 6Keyword.io vs SEOPress
- 7Keyword.io vs Frase
- 8Keyword.io vs Yoast SEO
- 9Keyword.io vs SEO PowerSuite
- 10Keyword.io vs Marketing Miner
- 11Keyword.io vs SpyFu
- 12Keyword.io vs Keyword Tool
- 13Keyword.io vs Outerank
- 14Keyword.io vs DataForSEO SERP API
- 15Keyword.io vs Serpstat
- 16Keyword.io vs Authoritas SEO Platform
- 17Keyword.io vs Surfaceable
- 18Keyword.io vs Nokofy
- 19Keyword.io vs DefiniteSEO
- 20Keyword.io vs Bing Webmaster Tools
Keyword.io alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Semrush | 9.0 | Free plan | — | API |
| 2 | Ahrefs | 8.9 | Free plan | $29/mo | API, Web |
| 3 | Google Search Console | 8.8 | Free plan | Free | API, Web |
| 4 | Screaming Frog SEO Spider | 8.7 | Free plan | — | API, Linux, Mac, Windows |
| 5 | Mangools | 8.7 | Free plan | Free | API |
| 6 | SEOPress | 8.7 | Free plan | $4.08/mo | API |
| 7 | Frase | 8.7 | Free plan | $19/mo | API, Browser, Web |
| 8 | Yoast SEO | 8.6 | Free plan | $9.90/mo | API |
| 9 | SEO PowerSuite | 8.6 | Free plan | $29.08/mo | API |
| 10 | Marketing Miner | 8.6 | Free plan | — | API, Web |
| 11 | SpyFu | 8.5 | No | $29/mo | API, Web |
| 12 | Keyword Tool | 8.5 | Free plan | $68/mo | API, Web |
| 13 | Outerank | 8.5 | Free plan | $31/mo | API |
| 14 | DataForSEO SERP API | 8.4 | No | — | API, Web |
| 15 | Serpstat | 8.3 | No | $50/mo | API |
| 16 | Authoritas SEO Platform | 8.3 | Free plan | £99/mo | API |
| 17 | Surfaceable | 8.3 | Free plan | $23/mo | API |
| 18 | Nokofy | 8.3 | Free plan | Free | API |
| 19 | DefiniteSEO | 8.3 | Free plan | $0.42/mo | Android, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows |
| 20 | Bing Webmaster Tools | 8.2 | No | — | API |
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Questions about Keyword.io alternatives
What is the best alternative to Keyword.io?
Semrush, number 1 in SEO tools with a score of 9.0 out of 10. The others here: Ahrefs, Google Search Console, Screaming Frog SEO Spider and 16 more.
What is the best free alternative to Keyword.io?
Semrush is the best-ranked alternative with a free plan. 16 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.