Smart Contract Tools

Analyze bytecode, calculate gas costs, and compute storage slots

Bytecode Analyzer

Gas Cost Calculator

Common Gas Limits

ETH Transfer: 21,000
ERC20 Transfer: 65,000
Uniswap Swap: 150,000
Contract Deploy: 2,000,000+

Storage Slot Calculator

Formula: keccak256(abi.encodePacked(key, slot))
Used to find storage locations for mapping values in Ethereum contracts.