0.01 ETH

Create a Burnable ERC-20 Token

A burnable token allows any token holder to permanently destroy (burn) their tokens, reducing both the circulating supply and the total supply. Burns are irreversible and emit an on-chain Transfer event to the zero address for tracking.

How It Works

The burnable extension adds two functions: `burn(uint256 amount)` lets a holder burn their own tokens, and `burnFrom(address account, uint256 amount)` lets an approved spender burn tokens from another account (requires prior allowance). Both functions reduce totalSupply permanently.

Solidity Implementation

// Any holder can burn their own tokens
function burn(uint256 amount) public {
    _burn(msg.sender, amount);
}

// Burn tokens from another account (requires allowance)
function burnFrom(address account, uint256 amount) public {
    _spendAllowance(account, msg.sender, amount);
    _burn(account, amount);
}

Use Cases

Deflationary Tokenomics

Create scarcity over time by reducing the total supply through regular burns.

Buyback and Burn

Use protocol revenue to buy tokens on the open market and burn them, increasing value for holders.

Fee Burning

Automatically burn a portion of transaction fees to create a deflationary pressure.

Proof of Burn

Require token burns as proof of commitment for protocol actions or governance proposals.

Frequently Asked Questions

Can the contract owner burn other people's tokens?

No. The burn function only allows holders to burn their own tokens. The burnFrom function requires explicit approval (allowance) from the token holder, just like transferFrom.

Are burns reversible?

No. Token burns are permanent and irreversible. Once burned, tokens are sent to the zero address and can never be recovered.

Does burning reduce totalSupply?

Yes. Both burn and burnFrom reduce the totalSupply, which is visible on block explorers and through the contract's totalSupply() function.

Technical Details

OpenZeppelin Contract:ERC20Burnable.sol

Related Features

Create a Burnable Token

Deploy a secure, verified smart contract with the Burnable feature on Ethereum in minutes. No coding required.

Create a Burnable Token

All Features

0.01 ETH

Create a Burnable ERC-20 Token

How It Works

Solidity Implementation

// Any holder can burn their own tokens
function burn(uint256 amount) public {
    _burn(msg.sender, amount);
}

// Burn tokens from another account (requires allowance)
function burnFrom(address account, uint256 amount) public {
    _spendAllowance(account, msg.sender, amount);
    _burn(account, amount);
}

Use Cases

Deflationary Tokenomics

Create scarcity over time by reducing the total supply through regular burns.

Buyback and Burn

Use protocol revenue to buy tokens on the open market and burn them, increasing value for holders.

Fee Burning

Automatically burn a portion of transaction fees to create a deflationary pressure.

Proof of Burn

Require token burns as proof of commitment for protocol actions or governance proposals.

Frequently Asked Questions

Can the contract owner burn other people's tokens?

No. The burn function only allows holders to burn their own tokens. The burnFrom function requires explicit approval (allowance) from the token holder, just like transferFrom.

Are burns reversible?

No. Token burns are permanent and irreversible. Once burned, tokens are sent to the zero address and can never be recovered.

Does burning reduce totalSupply?

Yes. Both burn and burnFrom reduce the totalSupply, which is visible on block explorers and through the contract's totalSupply() function.

Technical Details

OpenZeppelin Contract:ERC20Burnable.sol

Related Features

Mintable

0.01 ETH

Max Supply Cap

0.005 ETH

Ownable

0.01 ETH

Create a Burnable Token

Deploy a secure, verified smart contract with the Burnable feature on Ethereum in minutes. No coding required.

Create a Burnable Token