Free AI SEO Tools

Every tool on this page states a free plan, a free tier or free tools on its own website, with no trial clock attached. The list runs across all eight categories of the directory, from keyword research and content editors to site crawlers, rank trackers, local SEO tools and AI search visibility trackers, and the cards are ordered by the number of published guides that name each tool.

A free plan can still have limits. Before you build a workflow on one, open the vendor's own pricing page and check what the free tier leaves out: how many projects, keywords, pages or credits it covers, and whether exports, an API or team seats need a paid plan. Tools that let you try their paid plan for a limited time are on the free trial page instead, and a tool can sit on both.

Top 60 of 167: free plan or free tools

Semrush

cited by 119 guides

  • Keyword research
  • Content optimization
  • Technical audits

Ahrefs

cited by 76 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Frase

cited by 76 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Writesonic

cited by 47 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Otterly.AI

cited by 37 guides

  • Keyword research
  • Content optimization
  • Technical audits

SEOPress

cited by 32 guides

  • Content optimization
  • Writes content with AI
  • Technical audits

Moz Pro

cited by 30 guides

  • Keyword research
  • Content optimization
  • Technical audits

Scalenut

cited by 29 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Screaming Frog

cited by 28 guides

  • Technical audits
  • Free plan or free tools

Ubersuggest

cited by 26 guides

  • Keyword research
  • Technical audits
  • Rank tracking

Rankability

cited by 21 guides

  • Keyword research
  • Content optimization
  • Technical audits

Mangools

cited by 20 guides

  • Keyword research
  • Content optimization
  • Rank tracking

The SEO Framework

cited by 20 guides

  • Free plan or free tools
  • WordPress plugin
  • Built for agencies

Dashword

cited by 15 guides

  • Keyword research
  • Content optimization
  • Rank tracking

Majestic

cited by 15 guides

  • Rank tracking
  • Backlinks and link building
  • Free plan or free tools

Yoast SEO

cited by 15 guides

  • Content optimization
  • Writes content with AI
  • Local SEO

SEO.ai

cited by 14 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

LLMrefs

cited by 12 guides

  • Keyword research
  • Content optimization
  • Technical audits

Serpstat

cited by 12 guides

  • Keyword research
  • Technical audits
  • Rank tracking

Similarweb

cited by 12 guides

  • Keyword research
  • Technical audits
  • Rank tracking

Geoptie

cited by 11 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Page Optimizer Pro

cited by 11 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

SEO Tools

cited by 11 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Koala AI

cited by 10 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Redirection

cited by 10 guides

  • Technical audits
  • Free plan or free tools
  • API or MCP server

Keywords Everywhere

cited by 9 guides

  • Keyword research
  • Rank tracking
  • Backlinks and link building

Slim SEO

cited by 9 guides

  • Content optimization
  • Technical audits
  • Free plan or free tools

DataForSEO

cited by 8 guides

  • Keyword research
  • Backlinks and link building
  • AI search visibility

SEO Minion

cited by 8 guides

  • Content optimization
  • Technical audits
  • Free plan or free tools

SEO PowerSuite

cited by 8 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

AccuRanker

cited by 7 guides

  • Keyword research
  • Rank tracking
  • AI search visibility

Goodie AI

cited by 7 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Promptwatch

cited by 7 guides

  • Writes content with AI
  • AI search visibility
  • Free plan or free tools

Rank Math

cited by 7 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Atomic AGI

cited by 6 guides

  • Technical audits
  • Backlinks and link building
  • AI search visibility

Indexly

cited by 6 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Small SEO Tools

cited by 6 guides

  • Keyword research
  • Writes content with AI
  • Technical audits

Soovle

cited by 6 guides

  • Keyword research
  • Free plan or free tools

Answer Socrates

cited by 5 guides

  • Keyword research
  • Writes content with AI
  • Backlinks and link building

Dageno AI

cited by 5 guides

  • Writes content with AI
  • Technical audits
  • AI search visibility

Gauge

cited by 5 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

JetOctopus

cited by 5 guides

  • Technical audits
  • AI search visibility
  • Free plan or free tools

Keyword Hero

cited by 5 guides

  • AI search visibility
  • Free plan or free tools
  • API or MCP server

NeuralText

cited by 5 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Sparktoro

cited by 5 guides

  • Free plan or free tools
  • API or MCP server

Wellows

cited by 5 guides

  • Content optimization
  • Writes content with AI
  • Technical audits

Whitespark

cited by 5 guides

  • Rank tracking
  • Local SEO
  • Free plan or free tools

XML Sitemaps

cited by 5 guides

  • Technical audits
  • Free plan or free tools

CrawlWP

cited by 4 guides

  • Content optimization
  • Technical audits
  • Local SEO

Inlinks

cited by 4 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Junia AI

cited by 4 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

KeySearch

cited by 4 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Linkee

cited by 4 guides

  • Backlinks and link building
  • Free plan or free tools
  • Free trial

Linkody

cited by 4 guides

  • Backlinks and link building
  • Free plan or free tools
  • Free trial

Localo

cited by 4 guides

  • Rank tracking
  • Local SEO
  • AI search visibility

QuestionDB

cited by 4 guides

  • Keyword research
  • Content optimization
  • Free plan or free tools

RapidTags

cited by 4 guides

  • Keyword research
  • Free plan or free tools

Trakkr

cited by 4 guides

  • AI search visibility
  • Free plan or free tools
  • Free trial

AISEO AI Humanizer

cited by 3 guides

  • Keyword research
  • Content optimization
  • Writes content with AI

Free AI SEO Tools by category

The number of listed AI SEO tools confirmed for free plan or free tools on each category page.

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