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.
Tynker - Game Worlds for Kids to Learn Programming
Google Trends - Explore Google trending search topics with Google Trends.
CodaKid - CodaKid is an online kid’s coding academy offering coding courses for kids, Minecraft modding, Robox coding, and video game programming courses.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition
CodeCombat - Learn programming with a multiplayer live coding strategy game.