Debug Challenges

Browse our collection of debugging challenges, from beginner-friendly to advanced puzzles. Find the perfect challenge to sharpen your skills.

Featured Challenges

Fix the Greeting Function!

Python

Today

beginner

Unraveling the Mystery of String Concatenation

Python

Popular

advanced

Fix the List Concatenation

Python

Popular

intermediate

Javascript

20 challenges

Fix common JavaScript bugs and improve your debugging skills

Python

16 challenges

Debug Python code and fix logical errors

Typescript

7 challenges

Find and fix typing issues and interface problems

Logic & Algorithms

24 challenges

Fix bugs in algorithm implementations and logical flows

Syntax Issues

19 challenges

Identify and fix syntax errors in code

Or browse our complete collection of challenges.