EthTools is a selection of various tools that I have built whilst developing software on the Ethereum blockchain over the years.
Ethereum unit converter
Quickly concert between Ethereum currency units (ether, gwei, wei, finney, szabo).
Notarise a document
Notarize a document on the Ethereum blockchain to verify the authenticity of its contents at a specific point in time.
ENS hash generator
Calculate the Namehash, Labelhash, and Node hash for a particular Ethereum Name Service (ENS) domain.
ENS Whois
Lookup the owner and registrant of a particular Ethereum Name Service (ENS) domain.
Sign a message
Sign a message using your Ethereum account.
Sign a typed message
Sign a message using your Ethereum account where each input to the signature is named and typed.
EIP165 Interface ID Generator
Generate (and share) interface IDs for standard interface detection (EIP165).
EIP165 Interface ID Database
A searchable database of ERC165 Interface IDs
Test a contract
Connect an Ethereum account and test a smart contracts functionality directly in your browser using a predefined ABI.