ABI Encoder & Decoder

Encode and decode Ethereum ABI calldata for smart contract interactions.

ABI Encoder / Decoder

Encode Solidity function parameters into ABI calldata for contract interactions, or decode calldata back.

Function Signature

address

uint256

Encoded Calldata

0xa9059cbb000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e0000000000000000000000000000000000000000000000000de0b6b3a7640000

Selector: 0xa9059cbb

Supported types: uint256, uint128, uint64, uint32, uint8, int256, int128, int64, int32, int8, address, bool, string, bytes, bytes32

Dynamic types (string, bytes) use head/tail ABI encoding with offsets.