eDesk - Business Tools, Support, Sales, and Marketing, and Help Desk
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
EasyChannel - Simplify your multichannel eCommerce with EasyChannel.
Google Trends - Explore Google trending search topics with Google Trends.
Feedback Whiz - Feedback Whiz is a useful platform providing the best-in-class seller tools that allows you to automatically monitor all critical events on product listings on the Amazon platform.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition