Online Solidity Decompiler

There are many contracts deployed on the Ethereum network with no source or ABI publicly available.
This makes verifying their security and understanding their behaviour a difficult task without the right tools, such as a decompiler.
This tool decompiles Ethereum contract bytecode into more readable Solidity-like code, allowing for better understanding of such contracts.

• evmdis disassembler
• pyevmasm (dis)assembler
• Ethersplay Binary Ninja plugin
• JEB decompiler
• Function Signature Database

Changelog:
2018-09-12 - Fixed decompiler not working on Kovan or Rinkeby testnet contracts.
2018-09-09 - Improved support for function calls, parameters and return values.
2018-09-09 - Improved expression tree simplification.
2018-05-13 - Added support for RETURNDATASIZE and RETURNDATACOPY opcodes.
2018-04-14 - Fixed infinite loop when encountering function calls chained by return address.