SEO tools with a free plan
Every tool in the index that has a free plan — not a trial that expires. Limits differ a lot: some free plans are complete for a single small site, others are a demo. Each listing says what the free plan includes.
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Ahrefs
SEO and marketing platform built on its own web crawler index: backlinks, keywords, rank tracking, site audits and AI visibility.
Score4.5Searches / mo368K−15.1%Organic (US)1.40M59.8K kwReviewsTP —G2 4.5 (534) -
Google Keyword Planner
Free keyword research tool inside Google Ads: keyword ideas, monthly search estimates and bid estimates.
Score4.4Searches / mo246K+6.0%Organic (US)3.77M17.1K kwReviewsTP —G2 — -
Hunter
Email finder, verifier and cold email sequencing platform, used to find contacts for outreach and link building.
Score4.3Searches / mo60.5K+13.8%Organic (US)136K6.5K kwReviewsTP —G2 4.4 (547) -
ProWritingAid
Grammar checker and line-editing tool for fiction writers, with style reports, rephrasing, manuscript critiques and session tracking.
Score4.3Searches / mo40.5K−34.0%Organic (US)5.72M151K kwReviewsTP 4.4 (224)G2 — -
Clicky
Privacy-friendly real-time web analytics with visitor logs, heatmaps, bot filtering and uptime monitoring.
Score4.3Searches / mo27.1K+49.3%Organic (US)4.3K421 kwReviewsTP 4.0 (3)G2 4.5 (31) -
Yoast SEO
WordPress SEO plugin with real-time content and readability analysis, schema and sitemaps; paid tiers add AI and brand tracking.
Score4.3Searches / mo27.1K−13.2%Organic (US)151K11.3K kwReviewsTP —G2 4.6 (172) -
Phrasly.AI
AI writing tool that rewrites AI-generated text to read as human, with an AI detector, content generator and plagiarism checker.
Score4.3Searches / mo22.2K+39.5%Organic (US)159K4.9K kwReviewsTP 4.6 (1,512)G2 — -
Seobility
All-in-one SEO software: website crawler audit, daily rank monitoring, backlink monitoring, keyword tools and uptime checks.
Score4.3Searches / mo18.1K−24.0%Organic (US)496K16.2K kwReviewsTP 4.2 (40)G2 4.6 (297) -
Mangools
SEO toolset of five apps: KWFinder keyword research, SERPChecker, SERPWatcher rank tracking, LinkMiner backlinks and SiteProfiler.
Score4.3Searches / mo14.8K−23.9%Organic (US)91.4K8.9K kwReviewsTP 4.9 (120)G2 4.6 (74) -
Semrush
SEO and marketing suite: keyword and backlink research, rank tracking, site audit, competitor traffic data and AI visibility tracking.
Score4.2Searches / mo673K−12.9%Organic (US)3.05M119K kwReviewsTP 4.0 (728)G2 — -
Data Studio (formerly Looker Studio)
Google's free report and dashboard builder (formerly Looker Studio) that connects to Google Analytics, Google Ads, Sheets, BigQuery and other sources.
Score4.2Searches / mo550K−12.6%Organic (US)59.9K4K kwReviewsTP —G2 — -
AnswerThePublic
Keyword and question research tool that maps what people search around a topic, with AI article drafting via Content Studio.
Score4.2Searches / mo165K−18.1%Organic (US)19.3K2.1K kwReviewsTP 4.1 (16)G2 4.5 (36) -
Screaming Frog SEO Spider
Desktop website crawler for technical SEO audits; free up to 500 URLs, paid annual licence removes the limit.
Score4.2Searches / mo74K0.0%Organic (US)19.2K1.6K kwReviewsTP 3.4 (8)G2 4.7 (78) -
Rank Math
WordPress SEO plugin: on-page analysis, schema markup, sitemaps, redirects, Search Console stats and rank tracking.
Score4.2Searches / mo27.1K−23.1%Organic (US)118K16.6K kwReviewsTP 4.2 (246)G2 4.8 (109) -
Copyscape
Plagiarism checker that searches the web for copies of a page or text, with pay-per-search Premium, an API and automated monitoring.
Score4.2Searches / mo18.1K−52.5%Organic (US)23.8K1.1K kwReviewsTP 3.1 (4)G2 4.5 (26) -
Google Search Console
Free Google service that shows how a site performs in Google Search: queries, clicks, indexing status and issues.
Score4.1Searches / mo3.35M+49.3%Organic (US)635K39.8K kwReviewsTP —G2 — -
Keyword Tool
Keyword research from autocomplete suggestions on Google, YouTube, Amazon, TikTok and 12 other platforms; volume data in the Pro plans.
Score4.1Searches / mo110K−55.2%Organic (US)309K9.6K kwReviewsTP 2.8 (3)G2 4.5 (19) -
Bing Webmaster Tools
Microsoft's free console for site owners: Bing search performance, backlinks, keyword research and site scans.
Score4.1Searches / mo110K+71.3%Organic (US)7.77M112K kwReviewsTP —G2 — -
SEOquake: On-Page SEO Checker
Free Semrush browser extension for on-page SEO audits, SERP overlays, link analysis and keyword density.
Score4.1Searches / mo22.2K+6.6%Organic (US)—ReviewsTP —G2 4.3 (40) -
NitroPack
Hosted site speed optimization service for WordPress and WooCommerce: caching, image/CSS/JS optimization and a built-in CDN.
Score4.1Searches / mo6.6K−33.3%Organic (US)6K1.9K kwReviewsTP 4.9 (1,139)G2 — -
Majestic
Backlink index and link analysis toolset, known for its Trust Flow and Citation Flow metrics.
Score4.1Searches / mo5.4K−13.9%Organic (US)26.1K1.2K kwReviewsTP 2.8 (11)G2 4.3 (72) -
Moz Pro
SEO suite with keyword research, link data, rank tracking, site crawls and AI search visibility tracking; maker of Domain Authority.
Score4.1Searches / mo2.9K−13.0%Organic (US)397K20.9K kwReviewsTP 4.0 (167)G2 4.3 (497) -
SEO PowerSuite
Downloadable SEO software for rank tracking, keyword research, site audits, backlink analysis and link building, with no credit limits.
Score4.1Searches / mo2.9K−46.1%Organic (US)141K11K kwReviewsTP 4.8 (386)G2 4.6 (536) -
Google Trends
Free Google tool showing relative search interest in topics and terms over time and by location.
Score4.0Searches / mo2.24M−24.0%Organic (US)650K5.1K kwReviewsTP —G2 — -
Wappalyzer
Browser extension and web service that shows which CMS, frameworks, analytics, ecommerce and other technologies a website uses.
Score4.0Searches / mo74K−18.2%Organic (US)12.8K2.3K kwReviewsTP —G2 — -
Prepostseo
Collection of 150+ free online writing and webmaster tools, led by a plagiarism checker, paraphraser and DA/PA checker.
Score4.0Searches / mo33.1K−58.1%Organic (US)390K21.4K kwReviewsTP 2.4 (7)G2 — -
Exploding Topics
Trend research database that flags fast-growing topics, products and startups from search and social signals, plus free SEO tools.
Score4.0Searches / mo18.1K0.0%Organic (US)192K41.3K kwReviewsTP 3.7 (1)G2 — -
Detailed SEO Extension
Free Chrome and Firefox extension that shows a page's title, meta tags, robots directives, headings, links, images, schema and hreflang in one click.
Score4.0Searches / mo9.9K+22.2%Organic (US)39.3K3.5K kwReviewsTP —G2 — -
Writecream
AI writing platform with 75+ tools for SEO articles, ad copy and cold-email icebreakers, plus an AI agent (Lexi) that drafts SEO posts.
Score4.0Searches / mo5.4K−74.2%Organic (US)89.5K33.1K kwReviewsTP 4.7 (1,182)G2 — -
MarketMuse
Content planning and optimization software that models topics, scores content and generates briefs from a site's inventory.
Score4.0Searches / mo2.9K−56.0%Organic (US)98.4K3.1K kwReviewsTP —G2 4.6 (214) -
PageSpeed Insights
Google's web page speed test: real-user Core Web Vitals from CrUX plus a Lighthouse lab audit, for mobile and desktop.
Score3.9Searches / mo301K+7.4%Organic (US)166K1.6K kwReviewsTP —G2 — -
Ubersuggest
Budget SEO tool from Neil Patel: keyword research, rank tracking, site audit, competitor and backlink data, and AI answer visibility.
Score3.9Searches / mo201K−23.4%Organic (US)—ReviewsTP 4.6 (367)G2 4.2 (141) -
Helium 10
Seller software for Amazon, Walmart and TikTok Shop: product and keyword research, listing building, ads automation, profit and inventory tools.
Score3.9Searches / mo135K−18.5%Organic (US)80.9K7.9K kwReviewsTP —G2 — -
WordStream (by LocaliQ)
Online advertising resource from LocaliQ with a free keyword tool, free Google Ads and Facebook Ads graders, and PPC benchmarks.
Score3.9Searches / mo12.1K−41.7%Organic (US)424K67.1K kwReviewsTP 1.9 (569)G2 4.5 (926) -
MozBar
Moz's free SEO toolbar for Chrome and Firefox: Domain and Page Authority, link counts, on-page elements and a SERP overlay as you browse.
Score3.9Searches / mo5.4K+13.4%Organic (US)397K20.9K kwReviewsTP —G2 — -
Ahrefs SEO Toolbar
Free Ahrefs browser extension for on-page checks, link and redirect analysis, and localized Google results; Ahrefs metrics need a paid plan.
Score3.9Searches / mo1.6K+69.7%Organic (US)1.40M59.8K kwReviewsTP —G2 — -
Keywords Everywhere
Browser extension that shows search volume, CPC and competition on Google, YouTube, Amazon and 15+ other sites, paid with credits.
Score3.8Searches / mo22.2K−13.1%Organic (US)22.5K7.2K kwReviewsTP —G2 — -
UnAIMyText
AI text humanizer that rewrites AI-generated drafts to vary sentence rhythm and wording; free up to 500 words per input.
Score3.7Searches / mo40.5K−65.4%Organic (US)18.3K1.1K kwReviewsTP 4.1 (619)G2 — -
HyperWrite
General-purpose AI writing assistant with autocomplete, web-search citations, a document editor and a Chrome extension.
Score3.7Searches / mo14.8K−63.5%Organic (US)29.2K8.2K kwReviewsTP —G2 — -
AlsoAsked
Pulls live Google 'People Also Ask' questions for a keyword and maps them into intent trees, by country, city and language.
Score3.7Searches / mo9.9K−7.3%Organic (US)5.5K197 kwReviewsTP —G2 — -
Backlinko
SEO and AI-search education blog owned by Semrush, with guides, tool reviews and free checkers powered by Semrush data.
Score3.7Searches / mo5.4K−24.4%Organic (US)180K43.4K kwReviewsTP 4.0 (3)G2 3.5 (1) -
Siteliner
Site crawler that finds internal duplicate content and broken links, and shows which pages get the most internal link weight.
Score3.7Searches / mo5.4K+22.2%Organic (US)868116 kwReviewsTP 3.4 (1)G2 — -
diib
Website growth dashboard for small businesses: SEO health scan, keyword and backlink data, AI visibility score and an AI analyst.
Score3.7Searches / mo4.4K−23.2%Organic (US)16K5.9K kwReviewsTP —G2 3.0 (20) -
Answer Socrates
Keyword and question research tool pulling real questions from Google, Bing, YouTube and AI models, with clustering and LLM tracking.
Score3.6Searches / mo6.6K0.0%Organic (US)9.1K1.2K kwReviewsTP —G2 — -
All in One SEO (AIOSEO)
WordPress SEO plugin covering on-page analysis, schema, XML sitemaps, redirects, local SEO and Search Console data in the dashboard.
Score3.6Searches / mo4.4K−12.9%Organic (US)62.3K12.2K kwReviewsTP —G2 — -
SellerApp
Amazon seller platform: PPC automation, product and keyword research, keyword tracking, listing quality and profit dashboards, plus agency plans.
Score3.6Searches / mo2.9K−33.3%Organic (US)57.5K13.8K kwReviewsTP —G2 — -
SiteGuru
SEO audit tool that turns technical, on-page and content checks plus Search Console data into a prioritised to-do list.
Score3.6Searches / mo1.9K−15.8%Organic (US)2.5K1.4K kwReviewsTP 4.0 (3)G2 4.7 (3,933) -
RightBlogger
AI blog automation: finds keywords, writes SEO articles, publishes to your CMS, shares to social, and maintains older posts.
Score3.6Searches / mo1K−38.7%Organic (US)10K3.9K kwReviewsTP 4.7 (33)G2 — -
SpySERP
Rank tracker priced by keyword checks, with competitor tracking, SERP-based keyword clustering and a free SERP checker.
Score3.6Searches / mo720−11.7%Organic (US)2.5K1.4K kwReviewsTP 4.1 (16)G2 4.8 (20) -
TinySEO
Shopify SEO and speed app (renamed TinySEO in July 2026): image compression, ALT text, metadata, JSON-LD, site audits, script control and LLMs.txt.
Score3.6Searches / mo210+33.9%Organic (US)21.7K2.8K kwReviewsTP —G2 — -
Grubby AI
AI humanizer that rewrites AI-generated English text to avoid AI detectors; marketed mainly to students.
Score3.5Searches / mo110K−58.8%Organic (US)34K287 kwReviewsTP 3.3 (35)G2 — -
SparkToro
Audience research tool: describe an audience and get the websites, podcasts, social accounts, keywords and subreddits it follows.
Score3.5Searches / mo9.9K−19.3%Organic (US)5.7K946 kwReviewsTP —G2 — -
InLinks
Entity-based SEO tool for internal linking, schema markup, content briefs and topic planning, deployed with one line of JavaScript.
Score3.5Searches / mo3.6K−19.4%Organic (US)927501 kwReviewsTP 4.0 (4)G2 4.9 (5) -
Soovle
Free tool that shows autocomplete keyword suggestions from up to six engines at once, such as Google, Amazon, YouTube and Bing.
Score3.5Searches / mo2.9K−41.6%Organic (US)—ReviewsTP —G2 — -
Keyword Hero
Restores the organic keywords behind Google Analytics sessions and ties them to engagement, conversions and AI-assistant traffic.
Score3.5Searches / mo390−34.5%Organic (US)775478 kwReviewsTP 4.1 (5)G2 4.7 (60) -
RankWeek
Auto-indexing tool that checks your sitemap against Search Console daily and submits non-indexed pages to Google for indexing.
Score3.5Searches / mo20+80.0%Organic (US)01 kwReviewsTP 3.3 (1,140)G2 4.7 (3,942) -
Lunchbreak AI
AI-detection checker and rewriter that scores text against detectors like GPTZero and Turnitin and humanizes flagged phrasing.
Score3.4Searches / mo9.9K−93.0%Organic (US)4.4K213 kwReviewsTP 3.3 (4)G2 — -
Speedwrite
AI text rewriter that generates a reworded version of a source text, marketed for producing text that differs from the original.
Score3.4Searches / mo6.6K−37.7%Organic (US)962109 kwReviewsTP 2.2 (8)G2 — -
Serpfox
Rank tracker for Google, Bing and Yandex that also checks whether ChatGPT, Claude, Perplexity and Gemini mention your brand.
Score3.4Searches / mo720−41.8%Organic (US)6818 kwReviewsTP —G2 — -
Avada AI SEO Image Optimizer
Shopify app with an AI SEO audit agent, on-page optimizer, page-speed booster, image compression and ALT text, structured data and sitemaps.
Score3.4Searches / mo260−12.3%Organic (US)38.7K32.7K kwReviewsTP —G2 — -
Serpstash
Low-cost SEO report tool: page audits with 30+ checks, keyword data, SERP and index checkers, shareable white-label reports.
Score3.4Searches / mo10−25.0%Organic (US)00 kwReviewsTP 3.1 (12)G2 4.6 (462) -
SEO Pro Extension
Free Chrome and Firefox extension from MarketingSyrup showing a page's meta tags, status codes, redirects, headings, links, images, schema and Core Web Vitals.
Score3.3Searches / mo1.6K0.0%Organic (US)162187 kwReviewsTP —G2 — -
Seed Keywords
Free crowdsourced keyword tool: you write a search scenario and contacts type the queries they would use.
Score3.3Searches / mo880+47.0%Organic (US)1005 kwReviewsTP —G2 — -
BROWSEO
Free web app that shows any page as stripped HTML and highlights SEO elements: headings, links, meta tags, word count, status code.
Score3.3Searches / mo590+14.5%Organic (US)11848 kwReviewsTP —G2 — -
CanIRank
SEO software for small businesses that turns keyword, competitor and link data into a prioritised list of SEO tasks.
Score3.3Searches / mo140−62.2%Organic (US)594152 kwReviewsTP 3.2 (1)G2 4.7 (11) -
SheerSEO
Low-cost SEO software: rank tracking for Google, Bing and YouTube, backlink monitoring, keyword research, site audit, white-label reports.
Score3.3Searches / mo90−54.8%Organic (US)28 kwReviewsTP —G2 4.7 (47) -
Editby
AI content tool that learns a brand's voice from example posts and writes blogs, LinkedIn posts and newsletters on a schedule.
Score3.2Searches / mo6.6K+105.9%Organic (US)2310 kwReviewsTP 2.4 (82)G2 4.9 (50) -
LinkBoss
Internal linking tool that suggests and inserts contextual interlinks in bulk, builds silo structures and finds orphan pages.
Score3.2Searches / mo590−41.6%Organic (US)145103 kwReviewsTP 3.7 (1)G2 — -
Algoroo
Free Google algorithm tracker that charts daily volatility in search results for google.com and google.com.au.
Score3.2Searches / mo390−23.0%Organic (US)02 kwReviewsTP —G2 — -
TextOptimizer
Content optimization tool that compares a page's text with search results and suggests terms to add or remove.
Score3.2Searches / mo90−74.4%Organic (US)137 kwReviewsTP 4.7 (55)G2 5.0 (1) -
AthenaHQ
Generative engine optimisation platform that tracks brand visibility across 11 AI models and recommends content and citation fixes.
Score3.1Searches / mo2.4K+16.1%Organic (US)526201 kwReviewsTP —G2 — -
SEO Gets
Analytics dashboard for Google Search Console and GA4 data, with content decay, cannibalization, striking-distance and SEO testing reports.
Score3.1Searches / mo1.3K+32.1%Organic (US)1.6K285 kwReviewsTP —G2 — -
BOOSTER AI SEO + AEO OPTIMIZER
Shopify app that scans a store and fixes SEO issues automatically: meta tags, ALT text, broken links, image compression, structured data and LLMs.txt.
Score3.1Searches / mo1.3K−2.0%Organic (US)578113 kwReviewsTP —G2 — -
Squirrly SEO
WordPress SEO plugin plus cloud app: keyword research, live content assistant, audits, rank tracking and AI-search (GEO) tools.
Score3.1Searches / mo480−18.5%Organic (US)22610 kwReviewsTP 3.7 (1)G2 — -
vevy.ai
Shopify app for AI blog writing: topic clusters, a drag-and-drop shoppable blog builder, scheduled auto-posting and blog analytics.
Score3.1Searches / mo10+100.0%Organic (US)28 kwReviewsTP —G2 — -
Serp Miner
Bulk keyword checkers: allintitle and Keyword Golden Ratio (KGR), keyword difficulty, search volume, Google index status and rank tracking.
Score3.1Searches / mo—no trendOrganic (US)51105 kwReviewsTP —G2 — -
SEOWILL (formerly SEOAnt)
Shopify SEO app, formerly SEOAnt: SEO and GEO audit, AI blog posts, meta tags and ALT text, image compression, speed, JSON-LD, llms.txt, broken-link redirects.
Score3.0Searches / mo170no trendOrganic (US)71122 kwReviewsTP —G2 — -
URLsLab
WordPress SEO plugin for automated internal linking, content gap analysis, SERP monitoring, AI content and site performance tweaks.
Score3.0Searches / mo100.0%Organic (US)22349 kwReviewsTP 3.7 (1)G2 4.5 (1) -
SearchPie: SEO, Schema & Speed
Shopify SEO app: JSON-LD schema, bulk AI meta tags and ALT text, image compression and speed fixes, IndexNow, 404 fixes and LLMs.txt.
Score2.9Searches / mo140−23.8%Organic (US)139133 kwReviewsTP —G2 — -
Smart SEO AI & Image Optimizer
Shopify SEO app by Sherpas Design: AI meta and ALT tags, image optimization, JSON-LD, broken links, IndexNow, sitemap and noindex control, LLMs.txt.
Score2.9Searches / mo110−53.1%Organic (US)22767 kwReviewsTP —G2 — -
Robinize
SEO content tool: analyzes the top 20 ranking pages for a phrase, suggests terms and headings, drafts the article with AI, tracks ranks.
Score2.9Searches / mo30−40.0%Organic (US)1913 kwReviewsTP —G2 5.0 (1) -
Revive by Animalz
Free tool that reads 12 months of GA4 data and lists blog posts losing traffic, ranked by refresh priority.
Score2.9Searches / mo200.0%Organic (US)15 kwReviewsTP —G2 — -
SEO King
Shopify SEO app by Engage Apps: unlimited AI meta titles and descriptions, image optimization, JSON-LD, llms.txt, redirects, keyword and SERP tracking.
Score2.8Searches / mo20−40.0%Organic (US)2819 kwReviewsTP —G2 —
No tool matches. Try a task, like “audit” or “keyword”.
How to choose seo tools with a free plan
This page lists every tool in the directory that has a free plan, not a trial that expires. The limits range from a complete tool for one small site to a demo with ten queries a day. Each listing states what its free plan includes, from the vendor's own page.
The free stack that covers most needs
- Search data: Google Search Console and Bing Webmaster Tools, the only sources of real impressions, clicks and indexing status.
- Keywords: Google Keyword Planner for volume, Google Trends for seasonality, AnswerThePublic for questions.
- Crawling: Screaming Frog SEO Spider, free up to 500 URLs.
- Speed: PageSpeed Insights for lab and field Core Web Vitals.
- On-page checks: browser extensions such as Detailed SEO Extension and SEOquake.
- WordPress: the free versions of Yoast SEO and Rank Math.
Where free plans stop
Free plans are generous with checking your own site and stingy with data about everyone else's. Backlink indexes, competitor traffic estimates and daily rank tracking cost the vendor money to collect, so they are where free tiers end. Our study of free plans lists what each one includes, side by side.
New free plans tools and SEO news, once a week at most
Google and AI-search news, new tools in the index and one practical SEO tip, in one short email.
Other categories
- RTRank tracking61 tools
- KWKeyword research62 tools
- AUSite audit & technical75 tools
- CACompetitor research29 tools
- BLBacklinks & outreach29 tools
- COContent optimization75 tools
- AIAI SEO tools62 tools
- AVAI visibility tracking84 tools
- AEAnswer engine optimization35 tools
- GEGenerative engine optimization31 tools
- LOLocal SEO16 tools
- WLAgency & white-label reporting39 tools