Coding Quiz: Test Your JavaScript, Python, SQL and Web Knowledge
Quick programming questions on JavaScript, Python, SQL and web basics. Find gaps before an interview or exam.
Open the free Coding Quiz →What is the Coding Quiz?
Test your programming knowledge with quick JavaScript, Python, SQL and web questions. It's completely free, needs no sign-up and works on any phone or computer.

Why it's helpful
- Several languages
- Instant feedback
- Good interview warm-up
Who it's for
Students, junior developers and job seekers.
How to use it
- Pick a language or mixed. Explanations appear after each answer.
💻 Open source: this tool is free and open source (MIT License). View the code on GitHub, download it and run it offline.
The bigger picture: Games
Short brain games are a healthy break: they sharpen memory, focus and reaction time in a few minutes. Daily puzzles also give friends, families and teams something fun to compare.
What's changing: Daily puzzles that everyone plays at the same time have become a social habit, shared in group chats around the world.
Frequently asked questions
Good for interviews?
It covers common basics that come up in junior interviews.



