Sites and apps similar to DataLemur include LeetCode, which has a free version. Other options are HackerRank, SQL Noir, InterviewBit and SQL Quest. In total there are six Code Learning Services like DataLemur for self-hosting.
LeetCode is a platform for learning and improving coding skills with the goal of being fully prepared for programming interviews. Choose problems to solve from categories such as System Design, Algorithms and Database, join code contests and engage in mock interviews.
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A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world challenges.
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SQL Noir is a free, browser-based game that helps you learn and practice SQL by solving fictional crimes. Each mission presents a new detective case, complete with its own database full of clues hidden in tables, records, and relationships. Your job?
Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.
Practice SQL in the browser with 250+ challenges and an adaptive coach that tracks your weak skills and picks your next step.
Dataford is an online interview preparation platform designed to help candidates land tech, AI, and data roles. It provides company-specific and role-specific practice materials gathered from real interview loops.
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