Google Trends is Google's free search trend analysis tool, launched in 2006, showing keyword interest as a normalized 0-100 index. It supports 5-keyword comparison, regional breakdown, and real-time hot topics, making it an entry-level staple for SEO and market research.
Semrush is an omnichannel digital marketing platform founded in Boston, USA in 2008 with 25B+ keywords and 43B+ backlinks, serving over 10 million users and listed on the NYSE in 2021.
Ahrefs is an SEO tool suite headquartered in Singapore, founded in 2010, with a backlink index of 42 billion+ web pages and a 10 billion+ keyword database, widely used by SEO professionals worldwide.
Wordtracker is a legacy keyword research tool launched in the United Kingdom in 1998, aggregating search terms from Google, YouTube, Amazon and more, with search trend and competitor keyword analysis.
WebCEO is a comprehensive SEO tool platform with over 20 years in the industry, offering keyword research, rank tracking, website audits, competitor analysis, and white-label reporting for small businesses and SEO agencies.
SEO Review Tools is a free SEO tool platform founded in 2013 and headquartered in the Netherlands, offering 82 real-time SEO and AI tools with over 180,000 members and an average rating of 9.3/10.
SEOMator is a Czech SEO audit platform founded in 2011, integrating 23 tools that check 21 issues per page, with white-label reports and AI rank tracking starting at $49/month.
Searchmetrics is an enterprise SEO and content analytics platform founded in Berlin, Germany in 2007, known for 0-100 content scoring, keyword research and rank tracking, and acquired by BrightEdge in 2021.
SE Ranking is an all-in-one SEO platform founded in 2013, bundling 50+ tools including rank tracking, website audit and backlink monitoring, with a 14-day free trial and white-label reports, a cost-effective choice for agencies.
Neil Patel SEO is the SEO and content marketing platform founded by American marketer Neil Patel; the free SEO Analyzer and Ubersuggest cover keyword research, site audits, and rank tracking, with paid plans from $12/month.
Moz is an SEO tool brand founded in 2004 in Seattle, creator of the DA/PA 0-100 metrics; Moz Pro, MozBar, and Moz Local cover keyword research, backlink analysis, and local SEO.
Mangools is an affordable SEO tool suite founded in 2014 in Slovakia. KWFinder covers 2.5 billion+ keywords and LinkMiner covers 9.5 trillion backlinks, serving 2.8 million+ users as a high-value choice for beginners and small teams.
LowFruits is a keyword opportunity finder from Semper Plugins (AIOSEO) that uses real SERP analysis to find "low-hanging fruit" long-tail keywords. The standard plan costs $20.75/month (yearly), with keyword clustering, rank tracking, and 150K low-authority domain data.
Link Assistant is the developer of SEO PowerSuite, founded in 2007, offering an all-in-one desktop toolkit covering rank tracking, website audit, backlink analysis, and link building for 2,000,000+ SEO professionals. The free version is free forever and Professional starts at $349/year.
KWFinder is a low-cost keyword research tool launched by Mangools in 2015 in Slovakia, covering 2.5 billion+ keywords and 65,000+ city-level locations, with an entry price of $29/month for beginners and small teams.
Internet Marketing Ninja is a US SEO tools and services provider offering 5 core modules - keyword research, rank tracking, site audits, link analysis, and competitor research - combined with human link-building and content strategy services for SEO teams and SMBs.
Conductor is an enterprise SEO and content marketing platform founded in 2006 in New York, USA; acquired by Newfold Digital in 2021, it covers keyword research, rank tracking, and content intelligence across 6 modules for large-brand content teams.
Cognitive SEO is a US-based SEO toolset focused on content optimization and backlink analysis, offering Content Intelligence, rank tracking, and site audits from about $49.95/month per tool.
Surfer SEO is a Polish AI content optimization and search visibility platform founded in Wrocław in 2017, used daily by 150,000+ professionals, where Content Score makes pages 2x more likely to reach the Top 10 and visibility spans both Google and AI search.
SpyFu was founded in 2008 and is headquartered in Phoenix, USA, as an SEO/PPC tool focused on competitor keyword and ad strategy analysis, with 11 billion+ keywords and 20+ years of SEO and 10+ years of Google Ads history, starting at $39/month.
Serpstat is an all-in-one SEO platform founded in 2016, with a database covering 8.62B keywords and 230 countries, over 1.1M users, and known for its value pricing and 7-day free trial.
Seobility is an SEO audit and page optimization tool founded in Germany in 2014; the free plan crawls 1,000 URLs, Premium starts at EUR 49.90/month and it has over 600,000 registered users.
Moz is an SEO tool brand founded in 2004 in Seattle, creator of the DA/PA 0-100 metrics; the free MozBar extension and Moz Pro suite cover keywords, backlinks, and site audits.
Bing Webmaster Tools is Microsoft's free official webmaster and SEO tool, offering IndexNow near-instant indexing, keyword research, and backlink analysis. It covers about 3% of global Bing search share and integrates with Bing Copilot, making it a low-cost way to reach Bing and AI search audiences.