15 Free AI Tools to Do SEO & Keyword Research

The best free AI tools to do SEO & keyword research, ranked by our checks. Last checked 18 Oct 2026.

Ranked AI tools you can use to do SEO & keyword research. Each listing shows verified free-tier details from the vendor pricing page; picks require at least one month of free access (free plan, monthly credits, or a trial of 30+ days).

15 free tools

Each with its last-checked date

HubSpot
Free CRM with AI content, email, and customer platform tools for growth.
Free forever, Free $0/mo for up to 2 users
AI Marketing
AI Marketing
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Semrush
SEO and marketing toolkit with AI writing and competitive research.
Free forever, 10 reports/day, 1 demo project; 7-day Pro trial
AI Marketing
AI Marketing
Free accountTry
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AnswerThePublic
Search listening tool for content ideas.
Free forever, Limited daily searches
AI Marketing
AI Marketing
Free accountTry
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SparkToro
Audience research tool.
Free forever, Basic audience research at $0/mo
AI Marketing
AI Marketing
Try
Compare
SerpApi
Search engine results API.
Free forever, Searches per month
Dev Infrastructure & AI APIs
Dev Infrastructure & AI APIs
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Ubersuggest
Keyword research and SEO tool with AI writer.
Free forever, Limited daily searches
AI Marketing
AI Marketing
Free accountTry
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Moz
SEO software with AI features.
Free forever, Free Moz Community account with limited use of free SEO tools (MozBar, Keyword Explorer, Link Explorer); Moz Pro is paid, with a trial
AI Marketing
AI Marketing
Free accountTry
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Klaviyo
Email and SMS marketing with AI.
Free forever, Up to 250 profiles
AI Marketing
AI Marketing
Free accountTry
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Typeform
Forms and surveys with AI.
Free forever, Limited responses
AI Marketing
AI Marketing
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Tally
Free form builder.
Free forever, Unlimited forms and submissions
AI Marketing
AI Marketing
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SurveyMonkey
Surveys with AI-powered creation and analysis.
Free forever, Free basic plan
AI Marketing
AI Marketing
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Rank Math
WordPress SEO plugin with Content AI.
Free forever, Free plugin with limited Content AI credits
AI Marketing
AI Marketing
Try
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KeywordTool.io
Keyword research from Google autocomplete.
Free forever, Free keyword suggestions
AI Marketing
AI Marketing
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Similarweb
Digital market intelligence with AI.
Free forever, Free website traffic checker
AI Marketing
AI Marketing
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Loops
Email for SaaS companies.
Free forever, Free plan with Loops footer branding
AI Marketing
AI Marketing
Try
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