Developer Tools
Utilities for serious Ethereum builders
Small tools that save hours. Encode calldata, generate Merkle proofs, hash inputs, and inspect transactions — all in the browser.
Encoding
ABI Encoder
Encoding
Encode Solidity function calls into ABI calldata for constructors and low-level calls.
ABI Decoder
Encoding
Decode raw ABI-encoded hex into typed Solidity values and JSON.
Event Decoder
Encoding
Decode Ethereum event logs by topic0 and event signature.
Calldata Decoder
Encoding
Break down transaction input data into function selector and args.