LeetCode is described as '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' and is a Code Learning service in the development category. There are more than 50 alternatives to LeetCode, not only websites but also apps for a variety of platforms, including SaaS, Windows, Mac and Android apps. The best LeetCode alternative is Codecademy, which is free. Other great sites and apps similar to LeetCode are exercism, HackerRank, Project Euler and Codewars.
Practice coding for free with hundreds of real-world problems that strengthen your problem-solving and algorithmic thinking skills. Explore challenges across different topics, learn new techniques, and grow your confidence as a programmer.
PracHub is a technical interview preparation platform for software engineers, data scientists, product managers, and other tech candidates. It provides 8,500+ real interview questions from 400+ companies, organized by company, role, difficulty, and topic.
Evaluate is a developer screening platform with pre-made tests that include programming and theory. Fully free until the end of 2020.
Generative AI-powered skills assessment, talent intelligence & pre-employment testing platform designed to reduce bad hires fast.
India
Nyrion is a focused practice environment for the new wave of AI-assisted coding interviews — the format that Meta, Shopify, LinkedIn, Canva, and Rippling rolled out in late 2025.
United States
Calcora is a free platform for practicing olympiad-style math problems of all difficulty levels. Solve problems, maintain your streak, and compete with friends on the leaderboard.
Austria
EU
People frequently come to us asking for help with technical coding interviews. Many of us solve algorithmic coding puzzles for fun, and we’ve noticed a few things that make the process easier.
Xobin is an AI based Tech Hiring Platform for Secure Assessments and Collaborative Interviews enabling enterprises to build teams 4X faster.
India
DataLemur is a FREE SQL & Data Science Interview platform, used by thousands of Data Analysts & Data Scientists to prep for their technical interviews at companies like Amazon, Google, and Microsoft.
OnSite provides AI-powered interview practice that mirrors real hiring scenarios across 19 roles. Candidates train with adaptive simulations for software engineering, finance, consulting, marketing, design, and HR, and receive instant, role-specific feedback and analytics.
Australia
Practice SQL in the browser with 250+ challenges and an adaptive coach that tracks your weak skills and picks your next step.
Distraction-free, browser-based coding platform supporting multiple languages for technical interview preparation, focusing on problem-solving, core algorithms, and authentic challenges without AI assistance or setup, offering instant feedback and anonymous practice.
United States
