Code Challenges

LeetCode

The best platform to help you enhance your skills, expand your knowledge and prepare for technical interviews.

- @LeetCode

All

Frontend Mentor

Improve your front-end coding skills by building real projects Solve real-world HTML, CSS and JavaScript challenges whilst working to professional designs. Join 394,186 developers building projects, reviewing code, and helping each other get better.

- @frontendmentor

All

Edabit

Learn to code with 10,000+ interactive challenges. Gain XP, unlock achievements and level up. Bite-sized challenges to shortcut through the coding maze.

- @edabit

All

HackerRank

Practice coding skills, prepare for interviews and get hired.

- @hackerrank

All

JSchallenger

Free JavaScript challenges for all levels across various subjects. Learn JavaScript online by solving coding exercises. Solve JavaScript tasks from beginner to advanced levels. Select your topic of interest and start practicing.

- @kueckelheim

All

Codewars

Achieve mastery through challenge. Improve your skills by training with your peers using coding challenges.

- @codewars

All

Project Euler

Series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.

All

Flexbox Froggy

A game for mastering CSS flexbox.

- @playcodepip

Beginner

Grid Garden

A game for learning CSS grid layout.

- @playcodepip

Beginner