How to Create an ERC-20 Token

Development
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What is an ERC-20 Token?

An ERC-20 token is a type of cryptocurrency built on the Ethereum blockchain that follows a standard interface. This standard, defined in EIP-20, ensures compatibility with wallets, exchanges, and decentralized applications (dApps).

Steps to Create an ERC-20 Token (Theoretical Overview)

1. Design the Token

Decide on:

  • Name
  • Symbol
  • Decimals
  • Total Supply

2. Write the Smart Contract

  • Use the Solidity programming language.
  • Follow the ERC-20 interface exactly.
  • You can either write the functions from scratch or import a secure implementation from OpenZeppelin, a trusted open-source library.

3. Compile the Contract

Use tools like Remix (online IDE), Hardhat, or Truffle to compile the contract into bytecode and ABI (Application Binary Interface).

4. Deploy the Contract

Deploy the contract to:

  • Ethereum Mainnet (real tokens with value)
  • Or a Testnet like Goerli or Sepolia for testing

Deployment requires paying gas fees using ETH.

5. Verify and Publish

After deployment, verify the contract source code on Etherscan. This makes it transparent and trusted by others.

What Happens After Deployment?

Once deployed:

  • The smart contract controls the token.
  • The deployer (you) usually receives the full initial supply.
  • The token can be transferred, traded, or used in dApps.

Users can add the token to their MetaMask wallet using its contract address and details.

1 Like
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The hardest part of having a token is to make it known.
Most tokens are made to enrich their creators. Token on erc20 are doomed as they depend on Ethereum. And we all know how the switch to POS went.

Binance also offers an easy way to create a token, also there you have to deal with making it known.

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You can create it easily on Solana pump.fun :rofl: But there is 10000 of them made every day :wink:

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On Litecoin you drive better with runes or omni layer token out of my experience.

Runes are more efficient then erc20/ltc20 because it dosent need an additional inscription to move token.

the omni layer also offers a dedicated exchange.
Which means you can trade them on chain with your own node.

Runes may adopt this one day, Technically it should be possible.

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Really didn’t know how to create one. Basically, i only knew that ERC-20 token is a token that run on Ethereum network and some coins use it. Thanks.