SEO guide · updated 30 September 2026

Best SEO tools: free and paid, compared

You don't need expensive software to start SEO. Google's free tools cover the essentials; paid tools add keyword data, competitor research and backlink analysis.

Free SEO tools

ToolBest for
Google Search ConsoleSearch queries, clicks, indexing and errors for your own site. Essential.
Google Analytics 4Organic traffic and conversions
Google Business ProfileLocal SEO and map listings
PageSpeed InsightsCore Web Vitals and speed
Google Keyword PlannerKeyword ideas and volume ranges
Screaming Frog (free tier)Crawling up to 500 URLs for technical issues
Rich Results TestChecking schema markup
HeftySEO free toolsContent analyser, SERP preview, schema generator, ROI calculator

Paid SEO tools

ToolKnown for
SemrushAll-in-one: keyword research, competitor analysis, site audits, rank tracking, local SEO
AhrefsBacklink data, keyword research, content gap analysis
Moz ProDomain Authority, keyword research, rank tracking
Surfer SEOContent optimisation based on top-ranking pages
Screaming Frog (paid)Unlimited technical crawls
SE RankingBudget-friendly rank tracking and audits
UbersuggestLow-cost keyword ideas for beginners
Yoast / Rank MathOn-page SEO inside WordPress

Prices change often and are usually in US dollars, so check current pricing in rand before committing. For most small South African businesses, Search Console plus one paid tool is plenty.

Which SEO tool should you use?

  • Just starting: Google Search Console, PageSpeed Insights, Keyword Planner.
  • Writing content: Search Console queries plus a content tool like Surfer or our free analyser.
  • Competitive market: Semrush or Ahrefs for competitor and backlink research.
  • Technical problems: Screaming Frog.

Questions answered

What is the best SEO tool?

For your own site, Google Search Console is the most important and it's free. For competitor and keyword research, Semrush and Ahrefs are the most widely used paid tools.

What are the best free SEO tools?

Google Search Console, Google Analytics, PageSpeed Insights, Keyword Planner, Screaming Frog's free tier and free checkers such as our SEO content analyser.

Is Semrush or Ahrefs better?

Both are excellent. Semrush is broader (ads, local, content tools); Ahrefs is known for its backlink index. Try both on free trials or limited plans.

What is Surfer SEO?

Surfer SEO is a content optimisation tool that compares your page with top-ranking pages and suggests topics, terms and length.

What is Moz?

Moz is an SEO software company known for Moz Pro and the Domain Authority metric.

What is an SEO checker?

An SEO checker scans a web page for issues such as missing titles, meta descriptions, headings, slow speed or broken links.

What is Google Search Console?

Google Search Console is Google's free tool showing how your site performs in search: queries, clicks, indexing status and technical errors.

Do I need paid SEO tools?

Not to start. Free Google tools cover your own site; paid tools become useful for competitor research, backlinks and tracking many keywords.

What is the best SEO Chrome extension?

Popular options include SEOquake, Detailed SEO Extension, MozBar and Ahrefs SEO Toolbar for quick on-page and link checks.

What is SEO software?

SEO software helps with keyword research, rank tracking, site audits, backlink analysis and reporting.

Keep learning

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