Ethereum Signature Tools

4Byte
Dev Tools
ETH Signature Tools
Ethereum four-byte signature search by Snake Charmers.

Ethereum Signature Database
Dev Tools
ETH Signature Tools
An open-source database for Ethereum signature search and submission.

Etherface
Dev Tools
ETH Signature Tools
A signature database with source links. It crawls GitHub, Etherscan, and more sources

ethsign
Dev Tools
ETH Signature Tools
Uses a local Keystore or hardware wallet to sign Ethereum transactions.