Create Your Cryptocurrency

1Plan Your Token

Decide on your token's properties:

• Name: e.g., "Student Coin"
• Symbol: e.g., "STUD"
• Supply: e.g., 1,000,000 tokens

2Open Remix IDE

1. Go to remix.ethereum.org
2. Create new file: MyToken.sol

3Write Your Token Contract

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract MyToken is ERC20 {
    constructor(
        string memory name,
        string memory symbol,
        uint256 initialSupply
    ) ERC20(name, symbol) {
        _mint(msg.sender, initialSupply * 10**decimals());
    }
}

What this does:

• Imports OpenZeppelin's battle-tested ERC20
• Creates token with your name and symbol
• Mints all tokens to your wallet

4Compile

1. Click Solidity Compiler icon
2. Select compiler: 0.8.20
3. Click Compile MyToken.sol

5Deploy

1. Click Deploy & Run icon
2. Environment: Injected Provider - MetaMask
3. Fill constructor parameters:
   • name: "Your Token Name"
   • symbol: "SYM"
   • initialSupply: 1000000
4. Click Deploy
5. Confirm in MetaMask
6. Save your contract address!

6Add Token to MetaMask

1. Open MetaMask
2. Click "Import tokens"
3. Paste your contract address
4. Symbol and decimals auto-fill
5. Click "Add Custom Token"

You should now see your token balance!

7Transfer Tokens

Send tokens to a classmate:

1. In Remix, expand your deployed contract
2. Find the transfer function
3. Enter recipient address and amount (with 18 zeros!)
4. Click transact and confirm

// To send 100 tokens:
transfer("0x...", 100000000000000000000)

8View on Etherscan

1. Go to sepolia.etherscan.io
2. Paste your contract address
3. See token info, holders, and transfers!