Blockchain Tools

Blockchain tools for crypto & Web3. Generate wallets, validate addresses, decode transactions, and explore blockchain data securely.

12 tools available

Blockchain Tools 12

ENS Resolver

Free ENS resolver to lookup Ethereum Name Service domains and wallet addresses. Convert ENS names to addresses and reverse lookup addresses to ENS names instantly.

Blockchain Tools
Blockchain Timestamp Converter

Convert blockchain timestamps to human-readable date and time. Convert Unix timestamps to datetime and vice versa for Ethereum, Bitcoin, and all EVM-compatible blockchains.

Blockchain Tools
Keccak SHA3 Hasher

Generate Keccak-256, Keccak-512, SHA3-256, SHA3-512 hashes online. Free Ethereum-compatible hash tool for smart contracts and blockchain development.

Blockchain Tools
ABI Encoder / Decoder

Encode and decode Ethereum smart contract function call data. Convert ABI signatures to calldata and decode transaction input data.

Blockchain Tools
Checksum Address Converter

Convert Ethereum addresses to EIP-55 checksum format. Validate and format ETH, BSC, Polygon addresses with mixed-case checksums for error detection.

Blockchain Tools
EVM Vanity Address Generator

Generate custom EVM vanity addresses with personalized prefix/suffix. Create unique Ethereum, BSC, Polygon addresses. Fast, secure, browser-based tool.

Blockchain Tools
Bitcoin Unit Converter

Convert Bitcoin units instantly: BTC, satoshi, mBTC, bits and more. Free online converter with fiat currency support and precise calculations.

Blockchain Tools
EVM Transaction Decoder

Decode EVM raw transaction hex for Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche. View transaction details, gas, value, data, and signatures.

Blockchain Tools
BIP39 Mnemonic

Generate and validate BIP39 mnemonic seed phrases. Create secure 12-24 word recovery phrases for crypto wallets. Convert mnemonic to seed hex instantly.

Blockchain Tools
Crypto Address Validator

Validate cryptocurrency addresses for Bitcoin, Ethereum, Solana, Cardano, and 10+ blockchains. Auto-detect address format and verify validity instantly.

Blockchain Tools
Ethereum Unit Converter

Convert Ethereum units instantly: Wei, Gwei, Ether and more. Free online converter for EVM units with precise calculations for gas prices.

Blockchain Tools
Solidity Function Selector

Generate Solidity function selectors from signatures. Convert function names to 4-byte selectors and event signatures to Topic0. Lookup common selectors instantly.

Blockchain Tools