6 Free Keyword Research Tools

Many marketers are on a budget and keyword research is an essential part of search marketing. How can you find out what keywords your customers are searching for so you can optimize your website? Here are 6 free keyword research tools that you can use to do just that.  The Google tools are actually all-free. The other 4 tools offer free versions as well as full-featured paid versions.

Google AdWords Keyword Tool

Google Search-based keyword tool

Wordtracker

KeywordDiscovery.com

WordStream

SEMRush

Did we miss any?

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