0.02 ETH

Create a Pausable ERC-20 Token

A pausable token gives the contract owner the ability to freeze all token transfers globally. When paused, no tokens can be transferred, minted, or burned until the contract is unpaused. This is an essential safety mechanism for responding to security incidents.

How It Works

The pausable extension adds `pause()` and `unpause()` functions restricted to the contract owner. When paused, all calls to `transfer`, `transferFrom`, `mint`, and `burn` will revert. The contract emits `Paused` and `Unpaused` events for transparency.

Solidity Implementation

function pause() public onlyOwner {
    _pause();
}

function unpause() public onlyOwner {
    _unpause();
}

// All transfers check: require(!paused())

Use Cases

Emergency Response

Immediately freeze all transfers if a vulnerability or exploit is discovered.

Contract Migration

Pause transfers during a planned migration to a new contract version.

Regulatory Compliance

Freeze transfers if required by regulatory action or legal proceedings.

Post-Launch Stabilization

Temporarily pause trading during an initial distribution or airdrop period.

Frequently Asked Questions

Can a paused contract be unpaused?

Yes. The contract owner can call unpause() at any time to resume normal operations. Both pause and unpause events are recorded on-chain.

Does pausing affect existing approvals?

No. Approvals (allowances) are not affected by pausing. However, approved spenders cannot execute transferFrom while the contract is paused.

Is Pausable a security risk?

It gives centralized control to the owner, which is a trade-off. For maximum decentralization, consider renouncing ownership after the stabilization period, which permanently disables pause/unpause.

Technical Details

OpenZeppelin Contract:Pausable.sol

Related Features

Create a Pausable Token

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

Create a Pausable Token

All Features

0.02 ETH

Create a Pausable ERC-20 Token

How It Works

Solidity Implementation

function pause() public onlyOwner {
    _pause();
}

function unpause() public onlyOwner {
    _unpause();
}

// All transfers check: require(!paused())

Use Cases

Emergency Response

Immediately freeze all transfers if a vulnerability or exploit is discovered.

Contract Migration

Pause transfers during a planned migration to a new contract version.

Regulatory Compliance

Freeze transfers if required by regulatory action or legal proceedings.

Post-Launch Stabilization

Temporarily pause trading during an initial distribution or airdrop period.

Frequently Asked Questions

Can a paused contract be unpaused?

Yes. The contract owner can call unpause() at any time to resume normal operations. Both pause and unpause events are recorded on-chain.

Does pausing affect existing approvals?

No. Approvals (allowances) are not affected by pausing. However, approved spenders cannot execute transferFrom while the contract is paused.

Is Pausable a security risk?

It gives centralized control to the owner, which is a trade-off. For maximum decentralization, consider renouncing ownership after the stabilization period, which permanently disables pause/unpause.

Technical Details

OpenZeppelin Contract:Pausable.sol

Related Features

Ownable

0.01 ETH

Mintable

0.01 ETH

Burnable

0.01 ETH

Create a Pausable Token

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

Create a Pausable Token