Kattis is described as 'Helps companies make safer recruitments and attract the best developers with its dynamic challenge platform' and is an website in the development category. There are more than 10 alternatives to Kattis, not only websites but also apps for a variety of platforms, including Mac, Windows, SaaS and Linux apps. The best Kattis alternative is LeetCode, which is free. Other great sites and apps similar to Kattis are Codewars, HackerRank, Project Euler and CheckIO.
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.
United States
United States
A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world challenges.
United States
Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
United States
Learn to code JavaScript by playing game. This game claims to be the world’s first MMO strategy sandbox game for programmers.
Russia
Coderbyte is a place built for anyone to practice and perfect their programming skills. Challenges are added almost every day so you can work on applying your algorithmic thought process on any problem you want at anytime.
CodeSignal is the leading provider of assessments for technical hires. As the creator of the Predictive Coding Score, a measure of a candidates coding skills, CodeSignal provides HR teams with Certified Assessments, Custom Tests, and Live Interviews.
United States
Topcoder provides members opportunities to demonstrate their expertise, improve their skills, and win cash, while helping real world organizations solve real world problems.
Codility is an evidence-based platform helps hiring teams predict the real-life skills of their candidates, remotely and at scale. This brings faster hiring, time savings, and gives engineers more time to solve problems that matter.
HackerEarth is the most comprehensive developer assessment software that helps companies to accurately measure the skills of developers during the recruiting process.
United States
