Codier Alternatives

Edabit

When learning to code, most people get stuck on the "bridge" between memorizing syntax and understanding the logic that makes it all work. We believe the most...

Features:

• Equation solving
• Achievements
• Coding
• Education
• Gamification
• Syntax Highlighting

HackerRank

Engaging social network tasking developers with real world coding challenges and connecting them with great companies.

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.

Coderbyte

Coderbyte is a place built for anyone to practice and perfect their programming skills. Challenges are added almost every day so you can work on applying your...

Codewars

Achieve code mastery through challenge. Improve your skills by training with others on real code challenges Kata In our dojo, kata are real code challenges...

Features:

• Coding
• CrowdSourced

Spoj

Sphere Online Judge created for the coders' community to train, to learn and to make progress. With thousands of programming problems and an international group of...

CodeSignal

CodeSignal is the leading provider of assessments for technical hires. As the creator of the Predictive Coding Score, a measure of a candidates coding skills, CodeSignal...

Features:

• HR Software
• Performance Assessment

CheckIO

CheckiO is expanding the world’s code literacy through gameplay. We always wanted to create the most entertaining game where gaming and coding experiences are...

LeetCode

Practice and level up your development skills and prepare for technical interviews.

Screeps

Learn to code JavaScript by playing game. This game claims to be the world’s first MMO strategy sandbox game for programmers.