Web3 Tools

Validate wallet addresses, calculate gas fees, encode ABI data, hash with Keccak-256, build Merkle trees, and convert token units — free Web3 tools.

Wallet Address Validator
Validate Ethereum, Bitcoin, and Solana wallet addresses
Gas Fee Calculator
Calculate Ethereum gas fees in Gwei, ETH, and USD
ABI Encoder / Decoder
Encode and decode Ethereum smart contract ABI calls
Keccak-256 Hash
Calculate Keccak-256 hashes and Solidity function selectors
Base58 Converter
Encode and decode Base58 and Base58Check (Bitcoin format)
Token Unit Converter
Convert between wei, gwei, and ether with custom decimals
Merkle Tree Builder
Build Merkle trees, generate and verify proofs
Blockchain Timestamp
Convert between block numbers and timestamps for EVM chains
EVM Bytecode Viewer
Disassemble EVM bytecode into human-readable opcodes
Ethereum Address Tool
EIP-55 checksum conversion, validation, and vanity analysis

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