Frontend Developer
HTML, CSS & JavaScript
Beginner → Intermediate
Interactive coding platform
Learn to code by building real things
Tutorials with a live editor, hands-on exercises, XP tracking, and a community leaderboard — all in your browser.
● No install● Free to start● 6+ languages
Practice challenges
Problem-solving beyond tutorials
Independent coding challenges with difficulty levels, daily problems, XP rewards, and achievements — linked to tutorials when you finish a topic.
Explore challengesDaily challenge
One featured problem every day — extra XP and streak motivation.
Save & resume
Your code autosaves. Pick up any challenge where you left off.
Streak-friendly
Streak freezes and soft resets — we reward consistency, not perfection.
How it works
Three steps to your first project
01
Pick a language
Start with HTML or jump to Python — every path is structured.
02
Learn & code
Read short lessons, run examples, and edit code without leaving the page.
03
Track progress
Earn XP, complete exercises, and see how you rank against other learners.
Everything in one place
Interactive tutorials
Lessons with runnable examples and exercises embedded on the same page.
Browse tutorials →Live code editor
HTML, CSS, JS, Python & more — output appears instantly in your browser.
Open editor →Practice & XP
Earn XP, build streaks, and climb the leaderboard as you complete challenges.
Start practicing →Cheat sheets
Quick syntax references while you learn or build side projects.
View sheets →Choose your stack
Structured courses from your first line of code to job-ready projects.
300+
Practice problems
Zero
Setup needed
XP
Built-in progress
Free
Forever to start
Ready to become a coder?
Join free, save your progress, earn XP, and see your name on the leaderboard.
