Crypto / Blockchain
Validate Ethereum and Bitcoin addresses, convert gas units, calculate token amounts, and reference blockchain tools. Essential utilities for blockchain developers, traders, and crypto professionals.
₿Bitcoin Address Validator
Validate Bitcoin address format: P2PKH (1...), P2SH (3...), and Bech32 (bc1...).
ΞETH Unit Converter
Convert between all Ethereum denominations: wei, kwei, mwei, gwei, szabo, finney, ether.
ΞEthereum Address Validator
Validate Ethereum wallet address format: 0x prefix, 40 hex chars, EIP-55 notes.
⛽Gas Price Converter
Convert between Ethereum gas price units: wei, gwei, kwei, mwei, and ether.
🪙Token Unit Converter
Convert between token base units and display units with custom decimal support for any ERC-20.
FAQ
- How do I validate Ethereum addresses?
- Paste an Ethereum address and the tool validates the checksum format (EIP-55), checks the length, and confirms it is a valid hexadecimal address. Supports both checksummed and unchecksummed formats.
- What is gas and how do I convert it?
- Gas is the unit of computation cost on Ethereum. The gas converter transforms between wei, gwei, and ether. It also calculates transaction costs based on gas used and current gas price.