Crypto Address Validator
Verify Bitcoin, Ethereum, and Solana wallet addresses instantly with full checksum validation.
About the Address Format Validator
The Address Format Validator is a lightweight, open-source, fully client-side web tool designed to help users and developers confirm that cryptocurrency addresses are correctly formatted before initiating transactions. Supporting Bitcoin (Legacy, Bech32, and Taproot-compatible), Ethereum (with EIP-55 checksum), and Solana (Base58-encoded 32-byte public keys), it provides instant, accurate validation without compromising privacy.
Every year, millions of dollars in cryptocurrency are lost due to typographical errors in address entry. Even a single incorrect character can render an address invalid or—worse—direct funds to an unintended destination. This tool implements the exact cryptographic checks used by each blockchain protocol: Base58Check and Bech32 for Bitcoin, Keccak-256-derived mixed-case checksums for Ethereum, and strict Base58 length validation for Solana.
Unlike online validators that require sending addresses to remote servers, this utility runs entirely in your browser. No data is transmitted, logged, or stored. The validation engine uses pure JavaScript implementations of SHA-256, Keccak-256, Bech32 polymod, and Base58 decoding—ensuring results appear instantly while keeping your inputs completely private.
Whether you're a developer integrating payment forms, an exchange verifying deposits, or an individual double-checking a receive address, this tool offers professional-grade verification with zero trust requirements. It handles edge cases robustly—including burn addresses, vanity patterns, and maximum-length strings—while clearly communicating results and explanations.
Built for reliability, transparency, and user privacy, the Address Format Validator represents a practical defense against one of cryptocurrency's most common and costly mistakes.
100%
PrivateNo Logs
SecureOpen Source
Trustworthy
Client-Side Engine
All validation logic executes locally in your browser. No address ever touches a server.
How to Use the Validator
Three simple steps to ensure your cryptocurrency address is safe to use
Copy the Address
Carefully copy the full cryptocurrency address from your wallet, exchange, or payment request. Avoid manual typing whenever possible—copy-paste eliminates transcription errors.
Paste into Validator
Paste the address into the input field above. The tool supports auto-detection of Bitcoin, Ethereum, and Solana formats. You may also manually select the chain if preferred.
Verify the Result
Click "Verify" or wait for auto-check. A green "Valid" message confirms correct formatting and checksum. Review the detailed explanation. Only proceed with transactions after confirmation.
Best Practice: For high-value transactions, verify the address through multiple methods (QR scan, secondary device, direct communication with recipient).