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Storage Slot Calculator
Calculate Solidity storage slots for mappings and dynamic arrays.
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Checksum Address
Validate and convert Ethereum addresses to EIP-55 checksum format.
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Keccak-256 Hash
Calculate Keccak-256 hash from text or hex input.
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Wei Converter
Convert between Wei, Gwei, Finney and ETH units.
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ABI Encoder/Decoder
Encode and decode Solidity ABI data with type definitions.
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