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A keyword research tool is a software or online application that helps website owners and online marketers find relevant keywords to target in their content marketing, SEO, and paid advertising campaigns. Keyword research tools generate data on the search volume, competition, and potential traffic for a particular keyword or group of keywords.
The tools allow users to generate keyword ideas and identify search terms that are most likely to drive traffic to their website or online content. They can also provide information on related keywords and search terms, which can help with creating content that meets user intent and answering the queries of the search engine users.
Most keyword research tools use data from search engines and other sources to provide information on how frequently specific keywords are searched and how difficult it is to rank for them in search engine results pages (SERPs).
Keyword research tools range from free to paid, and some are more robust than others. Some of the popular keyword research tools include Google Keyword Planner, Ahrefs, SEMrush, Moz Keyword Explorer, Ubersuggest, and many more.