Signature Tool

Sign messages with your wallet and verify signatures from anyone.

Wallet

Connect a browser wallet to sign. Verifying works without one.

Message to sign

Connect a wallet to sign.

A signature proves ownership of an Ethereum address by signing a message with its private key.
Common uses include authentication, proving ownership and signing actions off-chain.
Create signatures with your connected wallet, or verify signatures from others. Signing never sends a transaction.