Kodiri is a free online tool (and app) designed to help you learn to code. It has interactive courses on Python, Typescript, ReactJs, Java, Vue, Mongo and several others, ranging from Beginner to Advanced. You learn by completing interactive exercises and challenges. Kodiri is fun. You can practice what you've learnt by challenging other 'players' to a coding challenge and seeing how you get on against them. You might even feature on the leaderboards if you try hard.