Crypto Wallet Playground
Ethereum Address Validator
Validate Ethereum addresses with EIP-55 mixed-case checksum. Detects common copy-paste errors.
About this tool
Validate Ethereum addresses with EIP-55 checksum verification. Supports every EVM-compatible network.
Ethereum Address Validator — FAQ
What is an Ethereum address?
An Ethereum address is a 20-byte (40 hex character) identifier derived from the last 20 bytes of the Keccak-256 hash of the public key, prefixed with 0x.
What is EIP-55?
EIP-55 is a standard for mixed-case checksummed Ethereum addresses. It uses the Keccak-256 hash to determine which characters should be uppercase, providing error detection.
Can I generate testnet Ethereum addresses?
Yes. Generate addresses for Sepolia and Holesky testnets. These work with public faucets for development testing.
How does address validation work?
The validator checks multiple criteria: format detection (Base58, bech32, EIP-55), checksum verification, length validation, and network prefix matching.
What networks does the validator support?
All 22+ supported networks: Bitcoin, Ethereum, Litecoin, Dogecoin, Solana, Tron, Ripple, Cosmos, Cardano, and more.
Can I validate multiple addresses at once?
Yes. You can paste multiple addresses and validate them all at once, seeing results for each one.
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Validate Ethereum Address