Codewars is an online coding platform that helps developers improve their programming skills through coding challenges called “katas.” These challenges range from beginner to advanced levels and cover multiple programming languages, including Python, JavaScript, Java, and more. Codewars fosters a gamified learning experience, allowing users to earn ranks, compare solutions, and engage with a community of coders. It is widely used for sharpening problem-solving skills, preparing for coding interviews, and continuous learning.
https://www.codewars.com/

codewars.com

Codewars - Achieve mastery through coding practice and developer mentorship

A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!