Advent of Code
FreeAn annual calendar of programming puzzles, with past years still open to solve
Best for puzzles · programming · calendar
Our own editorial score, not public reviews.
Strengths
- Daily puzzles
- Past year archives
Skip if
you need a team plan, audit logs, or a phone number to call
Advent of Code is a yearly puzzle calendar. Solve a programming challenge each December day, and replay any past year — a classroom, not a homework dump.
Key features
- Daily puzzles
- Past year archives
- Private leaderboards
- Any language
Why it is on Toolora
We list Advent of Code for people who need puzzles · programming · calendar. Skip it if you need a team plan, audit logs, or a phone number to call.
Closest alternatives on Toolora: Project Euler, LeetCode, Exercism.
Try instead
All Advent of Code alternativesProject Euler
A series of computational math problems you solve by writing a program
Education & LearningAlso covers puzzles and programming.
LeetCode
Our pickInterview-style coding problems with a judge
Education & LearningAlso covers practice.
Exercism
Practice 80+ programming languages with exercises and optional mentoring
Education & LearningAlso covers practice.
Advent of Code
Free; optional donations a…