8. Keyword Tool Free.. Keyword Tool is pegged as an alternative to Google Keyword Planner. It has a simple interface and uses Google's autocomplete feature to generate hundreds of long-tail keyword suggestions for every search term you enter.
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If you need further persuasion Moz Pro also provides features to help you with your on-page SEO and offers a suite of reporting and analytics options.
However unlike Google Keyword Planner the free version of Keyword Tool lists only the keywords and not the accompanying data such as search volume cost per click and competition.
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