Web3 Online Tools

Online web3 tools using web3.js for support your dapps development

isAddress
web3.utils.isAddress(address)

Checks if a given string is a valid Ethereum address. It will also check the checksum, if the address has upper and lowercase letters.

String: An address string.
toChecksumAddress
web3.utils.toChecksumAddress(address)

Will convert an upper or lowercase Ethereum address to a checksum address.

String: An address string.
checkAddressChecksum
web3.utils.checkAddressChecksum(address)

Checks the checksum of a given address. Will also return false on non-checksum addresses.

String: An address string.
toWei
web3.utils.toWei(number [, unit])

Converts any ether value value into wei.

String|Number|BN: The value.
String (optional, defaults to "ether"): The ether to convert from.
fromWei
web3.utils.fromWei(number [, unit])

Converts any wei value into a ether value.

String|Number|BN: The value in wei.
String (optional, defaults to "ether"): The ether to convert to.