How to use Wallet Validator + QR
Paste an address to detect chain format, validate EVM EIP-55 checksums when mixed-case, and render a QR for transfers. Everything runs client-side. We never POST the address to CryptonicTools servers.
Formula & methodology
EVM: /^0x[0-9a-fA-F]{40}$/ plus keccak-based EIP-55. Bitcoin (1/3/bc1), Solana base58, and Tron T-addresses use format checks. Always confirm in your wallet UI before sending funds.
Validate a crypto address and generate a QR
Address poisoning and copy-paste malware make visual checks important. Detecting whether a string looks like Ethereum, Bitcoin, Solana, or Tron is the first filter. EIP-55 checksums catch many single-character EVM typos when the address is mixed-case.
The QR panel helps desktop-to-mobile workflows: show the code on one screen and scan with a hardware wallet companion app. Generation is local, so the address does not need to hit our servers.
This is not a full BIP or bech32 consensus validator. Treat “OK” as a helpful signal, not a guarantee. Read the first and last characters aloud with the recipient when you move large amounts.
Related searches: wallet validator, address checksum, crypto qr. All CryptonicTools utilities are free, mobile-first, and require no account.