Learn Solidity by Practicing

The gamified platform to master Solidity and Smart Contracts. 1000+ interactive exercises, built-in IDE and real projects.

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Introduction
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20+ exercise types to master Solidity

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Counter.sol
FREE WRITING

Write a Counter contract with increment() and getCount() functions.

1// SPDX-License-Identifier: MIT
2pragma solidity ^0.8.24;
3
4contract Counter {
5 uint256 private count;
6
7 function increment() public {
8 count += 1;
9 }▍
10
11 function getCount() public view returns (uint256) {
12 return count;
13 }
14}
✓ Compile & Submit

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How it works

Three steps to become a Solidity expert.

01
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Choose a course

Pick from 15+ structured courses: beginner, intermediate, expert. Each level builds on the previous one.

02
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Practice daily

Solve varied exercises: fill code, QCM, matching, free writing. Earn XP and unlock badges.

03
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Build real projects

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VISIBILITY
3 / 25

A public state variable automatically generates a getter function in Solidity.

✓ Correct! Public variables auto-generate getters.

Frequently asked questions

Yes! The free plan includes all beginner courses and 50 exercises per week. The Pro plan unlocks the built-in IDE, advanced projects and unlimited access.

No. Our courses start from scratch. No prior knowledge of blockchain or programming is required.

A professional code editor (Monaco Editor, the same as VS Code) directly in your browser. You can write, test and deploy smart contracts without installing anything.

Yes, no commitment. Cancel from your dashboard anytime.

Solidity (800+ exercises), Rust (150+ for Solana), and JavaScript (100+ for Web3 frontend).

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