EVM calldata decoder
Read what a transaction actually does.
Paste raw hex calldata or a transaction hash. Callsign resolves the function selector, decodes every parameter, and unpacks nested Safe multiSend batches — entirely in your browser.
try
- resolve
- selector → signature via 4byte + openchain
- decode
- every parameter, typed and copyable
- unpack
- nested Safe multiSend sub-transactions
- fetch
- a tx hash on 6 chains, no wallet
input
Ctrl↵run·/focus
awaiting input
Decoded output lands here — function signature, every parameter, and any nested Safe multiSend, broken down word by word.