hackattic - No nonsense, real world programming challenges
Real Dev - Real-life coding skill challenge
Frontloops - Level up your frontend skills with handcrafted tasks
Daily Coding Problem - Get exceptionally good at coding interviews
Takehome - Effective and humane coding challenges for candidates
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.