How to Create an ERC20 Crypto Token
Create an ERC20 crypto token with a simple practical workflow and beginner-friendly smart contract explanation.
About this ERC20 token creation tutorial
This tutorial explains how to create and deploy an ERC20 token on an Ethereum testnet using MetaMask, OpenZeppelin Wizard, Remix IDE, and a blockchain explorer for contract verification.
Overview
The lesson walks through the full ERC20 token deployment workflow: preparing MetaMask, using a testnet, getting testnet ETH from a faucet, selecting an EVM network, generating ERC20 smart contract code with OpenZeppelin Wizard, compiling the code in Remix, deploying the contract, importing the token into MetaMask, and verifying the contract on a block explorer.
For official reference, review OpenZeppelin Wizard — Generate standard ERC20 smart contract code with OpenZeppelin.
Step-by-step tutorial outline
Prepare MetaMask and testnet ETH
The tutorial begins with MetaMask on an Ethereum testnet and explains that the same general process can be used on mainnet or other EVM-compatible networks.
Enable test networks
MetaMask test networks must be enabled before selecting a testnet. Testnet ETH can be requested from faucets for deployment practice.
Choose an EVM network
The ERC20 contract can be deployed on Ethereum or other EVM-compatible networks. Chainlist can be used to add networks to MetaMask.
Generate ERC20 code with OpenZeppelin Wizard
OpenZeppelin Wizard is used to generate ERC20 token smart contract code by selecting a token name, symbol, supply, license, and optional features.
Select token options carefully
Options such as minting, burning, pausing, ownership, and access control affect how the token works after deployment.
Compile the contract in Remix IDE
The generated Solidity code is pasted into Remix, the correct compiler version is selected, and the contract is compiled.
Deploy with MetaMask
Remix connects to MetaMask through the injected provider option, and MetaMask confirms the deployment transaction.
Import the deployed token
After deployment, the token contract address can be copied and imported into MetaMask so the token balance becomes visible.
Verify the contract
The tutorial explains flattening the contract code and verifying it on the network’s block explorer, so others can inspect the source code.
Review token transfers and contract details
The deployed token can be transferred, checked in MetaMask, and reviewed through its contract page and transaction history.
Continue learning with more Smart Contracts tutorials on BitDemy.
Key takeaways
- ERC20 tokens can be created with free tools such as OpenZeppelin Wizard and Remix IDE.
- The same general workflow works on Ethereum and many EVM-compatible networks.
- Testnets are useful for practicing deployment without spending real funds.
- MetaMask must be connected to the correct network before deployment.
- OpenZeppelin Wizard can generate safer standard token code.
- Optional features such as minting, burning, and pausing change the token’s behavior.
- Verifying the contract on a block explorer improves transparency.
- After deployment, the token can be imported into MetaMask using the contract address.
While following the practical steps, Remix IDE is also useful: Compile, deploy, and test Solidity smart contracts in the browser.
Security notes
- Practice on a testnet before deploying on mainnet.
- Understand every OpenZeppelin Wizard option before enabling it.
- Do not deploy a token with minting or owner powers unless you understand the trust implications.
- Verify contract code on the block explorer after deployment.
- Use the correct compiler version when compiling Solidity code.
- Check the network selected in MetaMask before confirming deployment.
- Keep the deployer wallet secure because it may control owner-only functions.
Tools and topics mentioned
- MetaMask
- Ethereum testnet
- Testnet faucet
- EVM networks
- Chainlist
- OpenZeppelin Wizard
- ERC20
- Solidity
- Remix IDE
- Blockchain explorer
- Contract verification
- Thirdweb
For deeper verification, use Ethereum ERC20 documentation — Official Ethereum documentation for the ERC20 token standard.
Transcript summary
The tutorial explains how to prepare MetaMask on a testnet, get testnet ETH from a faucet, choose an EVM network, use Chainlist, generate ERC20 token code with OpenZeppelin Wizard, configure token name, symbol, supply, and optional features, compile the Solidity contract in Remix IDE, deploy it with MetaMask, import the token into MetaMask, transfer tokens, flatten the contract code, and verify the contract on a blockchain explorer.
Frequently asked questions
Can I create an ERC20 token for free?
You can generate and test ERC20 code with free tools, but deploying on mainnet requires paying network gas fees.
Why use a testnet first?
A testnet lets you practice deployment and token interaction without spending real funds.
What is OpenZeppelin Wizard?
OpenZeppelin Wizard is a tool that generates standard smart contract code, including ERC20 token contracts with optional features.
What is Remix IDE used for?
Remix IDE is used to edit, compile, deploy, and interact with Solidity smart contracts through a browser.
Can the same ERC20 token code work on other networks?
Yes. ERC20 token contracts can usually be deployed on Ethereum and other EVM-compatible networks.
Why should I verify the smart contract?
Contract verification lets others inspect the source code on a block explorer, improving transparency and trust.
How do I see my new token in MetaMask?
Copy the deployed token contract address and import it into MetaMask as a custom token.