Codier
Explore and attempt front-end coding challenges.
14 Alternatives To Codier
Code Arcade
Complete coding tasks to advance levels in this arcade for programmers.
CodeCombat
Learn programming with a multiplayer live coding strategy game.
CodeSignal
CodeSignal is the leading assessment platform for technical hiring.
Coderbyte
Coderbyte is a place built for anyone to practice and perfect their programming skills.
Codewars
Achieve code mastery through challenge.
Devskiller
Review of DevSKiller Software: system overview, features, price and cost information. Get free demos and compare to similar programs.
Geektastic
Geektastic is a platform that manages peer reviewed code challenges supported by a community of qualified software engineers.
Hackerearth
HackerEarth is the network of top developers across the world. They connect to start-ups, tech companies, organizations and discover the best developer jobs. They participate in programming challenges and compete against other top developers.
LeetCode
Practice and level up your development skills and prepare for technical interviews.
Project Euler
Project Euler is a series of challenging mathematical/computer programming problems that will…
Screeps
Learn to code JavaScript by playing game.
Spoj
Sphere Online Judge created for the coders’ community to train, to learn and to make progress.
Topcoder
The Topcoder home page has received a slick new makeover that lets new customers quckly login, discover the power of our community, and launch challenges.
exercism
Download and solve practice problems in over 30 different languages.