The Calldata Decoder is a straightforward, in-browser calldata decoder for Ethereum smart contracts built by the team at dEth crypto. Built alongside a suite of tools known as the "dEth Tools", the webpage hosting Calldata Decoder is home to a variety of other encoders, decoders, unit conversion calculators, and even a vanity address generator. A one-stop shop for devs and curious users, the Calldata Decoder makes Ethereum contract minutiae more easily accessible.