Project Euler
Project Euler is a series of challenging mathematical/computer programming problems that will…
16 Alternatives To Project Euler
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.
Free Code Camp
Learn to code by helping nonprofits.
Geektastic
Geektastic is a platform that manages peer reviewed code challenges supported by a community of qualified software engineers.
Halite Programming Challenge
Halite is an artificial intelligence programming challenge.
InterviewBit
Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies
LeetCode
Practice and level up your development skills and prepare for technical interviews.
Spoj
Sphere Online Judge created for the coders’ community to train, to learn and to make progress.
Takehome
Effective and humane coding challenges for candidates
The AI Games
Challenge people worldwide by coding bots in awesome games.
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.
Zlott
Zlott analyses open source contributions of developers and helps companies connect with right matches for their engineering team
exercism
Download and solve practice problems in over 30 different languages.
mettl
Mettl is a #SaaS based Online #Assessment Platform which helps you measure a candidate’s #Aptitude, #Technical skills & conduct