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.
A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world challenges.
Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics.
HackerEarth is the most comprehensive developer assessment software that helps companies to accurately measure the skills of developers during the recruiting process.
Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.
allround is an upschool, a safe, vibrant co-curricular learning space for kids between 7 to 15 years in age. our interactive cosmos is buzzing with community, sharing, competitions, quizzes, showcases, and fun co-curricular learning.
Hack This Site is a free training ground for users to test and expand their hacking skills. Our community is dedicated to facilitating an open learning environment by providing a series of hacking challenges, articles, resources, and discussion of the latest happenings in hacker...
Earn points for your life experiences. Find lists that interest you and mark off the things you've done - movies you've seen, books you've read, foods you've eaten, places you've visited and much more.
InterviewMe is an automatic recruiting platform. It helps you to filter out inappropriate candidates, saving you money and time. We are an automatic recruiting platform. We help you to filter out inappropriate candidates, saving you money and time.
EvalAI is an open source platform for evaluating and comparing machine learning (ML) and artificial intelligence (AI) algorithms at scale.
Pocket Legends is the world’s largest mobile 3D massively multiplayer online game… and it’s free to play. Explore distant lands, fight against powerful enemies, or challenge one another in player versus player… all from your mobile device!
Ruzzle is a fun and fast-paced word game where you can challenge your friends or allow an opponent to be chosen randomly. Who can find the most words in two minutes?
Rock Paper Scissors is an addictive two player game, where Player with Scissor beats Paper, Paper beats Rock and Rock beats Scissor.
Wanna recall your K-12 memories? Team up with Ball Crushers on your mobile device and get back to your school yard or playground to enjoy non-stop Extreme Dodgeball action! Tilt your phone to navigate your teammates and make use of the multi-touch functions to hurl dodgeballs at...
You are the Last Surveved Ninja! Defend your home by fighting against the invasion of dangerous evil shadow monsters! 👿
Create a wooden path across the river and discover magical lands. In your adventure, you will travel by teleports, trigger explosions, unlock magical elements, and much more!
Want to improve your health, lose some weight, get an elegant body shape or, vice versa, become a hefty bodybuilder? Challenge yourself and achieve that!.
At Geektastic we help our client's thoroughly evaluate their future talent using our unique peer reviewed code challenge platform. We believe a candidate is worth more than a score and the only way to thoroughly understand how suitable they are to work in your team is to...
Halloween is coming and also disaster. But there is hope. If you can solve a mathematical challenge, you can avert disaster. The world needs your math skills. Can you solve a Halloween challenge and save Halloween?
Seqitaire is a free arithmetic puzzle game that incorporates gameplay elements of Solitaire and other classic card games.
Shader Learning is an interactive browser-based platform for learning GPU programming through practical exercises. It offers over 250 challenges in GLSL and HLSL, allowing users to write and test shaders directly in the browser without any setup.
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