Wallet Address Validator

Validate cryptocurrency wallet addresses across multiple blockchains.

Understanding Cryptocurrency Addresses

A cryptocurrency wallet address is a unique identifier that allows you to receive digital currency. Think of it like a bank account number, but for blockchain transactions. Each blockchain has its own address format and validation rules.

Why Validate Addresses?

Validating wallet addresses before sending cryptocurrency is crucial because:

Irreversible Transactions: Once you send crypto, you cannot reverse the transaction. Sending to an invalid address means losing your funds permanently.
Format Detection: Ensures the address matches the correct blockchain and format for your intended transaction.
Checksum Verification: Some addresses include checksums that detect typos and prevent sending to corrupted addresses.
Address Type Identification: Different address types have different features and fee structures.

Bitcoin Address Formats

Legacy (P2PKH) - Starts with 1

Format: Base58Check encoding

Length: 26-35 characters

Example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

The original Bitcoin address format, using Pay-to-Public-Key-Hash (P2PKH). These addresses are still widely supported but have higher transaction fees than newer formats.

Script Hash (P2SH) - Starts with 3

Format: Base58Check encoding

Length: 26-35 characters

Example: 3J98t1WpEZ73CNmYviecrnyiWrnqRhWNLy

Pay-to-Script-Hash addresses support advanced features like multi-signature wallets and SegWit. These are more flexible than P2PKH addresses.

Bech32 (SegWit) - Starts with bc1

Format: Bech32 encoding

Length: 42+ characters

Example: bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq

Native SegWit addresses offer lower transaction fees, better error detection, and are case-insensitive. These are the recommended format for Bitcoin transactions today.

Advantages: 40-60% lower fees, improved security, better error detection

Ethereum Addresses

Ethereum/ERC-20 - Starts with 0x

Format: Hexadecimal (0x prefix + 40 hex characters)

Length: 42 characters total

Example: 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7

Ethereum addresses are derived from the public key using Keccak-256 hashing. The same address format is used for ETH and all ERC-20 tokens.

EIP-55 Checksum

Mixed case addresses use EIP-55 checksumming. Uppercase letters in specific positions validate the address. For example, if the address above is changed to all lowercase or incorrect capitalization, it fails validation.

Checksummed: 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7

Non-checksummed: 0x742d35cc6634c0532925a3b844bc9e7595f0beb7 (all lowercase - works but no checksum protection)

Other Cryptocurrency Addresses

Litecoin

Legacy: Starts with L or M (Base58, 26-34 characters)

Bech32: Starts with ltc1 (similar to Bitcoin SegWit)

Example: LhgP8oKoXG5fBdPhf7vBvnbAjJH4JhQV4m

Dogecoin

Format: Starts with D (Base58, 34 characters)

Example: DH5yaieqoZN36fDVciNyRueRGvGLR3mr7L

Ripple (XRP)

Format: Starts with r (Base58, 25-35 characters)

Example: rDsbeomae4FXwgQTJp9Rs64Qg9vDiTCdBv

Solana

Format: Base58, 32-44 characters

Example: 7v91N7iZ9mNicL8WfG6cgSCKyRXydQjLh6UYBWwm6y1Q

Solana addresses don't have a specific starting character, making them harder to visually identify from other Base58 formats.

Cardano (ADA)

Format: Bech32, starts with addr1

Example: addr1qxy3w8z...

Cardano Shelley-era addresses use Bech32 encoding and are longer than most other address formats.

Best Practices for Address Safety

Always Double-Check: Verify the first few and last few characters of the address before sending.
Use Copy-Paste: Never manually type addresses - copy and paste to avoid typos.
Test with Small Amounts: Send a small amount first to verify the address works before sending large sums.
Watch for Malware: Some malware replaces copied addresses with attacker addresses. Always verify after pasting.
Use QR Codes: When available, QR codes reduce the risk of address errors.
Verify Address Type: Make sure you're sending to the correct blockchain (don't send BTC to an ETH address!).
Check Checksummed Addresses: For Ethereum, use checksummed addresses to catch typos.

Address Format Comparison

Cryptocurrency	Starts With	Format	Length
Bitcoin (Legacy)	1	Base58	26-35
Bitcoin (P2SH)	3	Base58	26-35
Bitcoin (SegWit)	bc1	Bech32	42+
Ethereum	0x	Hex	42
Litecoin	L, M, ltc1	Base58/Bech32	26-34/42+
Dogecoin	D	Base58	34
Ripple	r	Base58	25-35
Solana	varies	Base58	32-44
Cardano	addr1	Bech32	50+

Warning

Important: This validator checks address format only. A valid format doesn't guarantee the address exists or is controlled by the intended recipient. Always verify addresses through official sources and trusted communication channels.

Example Addresses

Bitcoin Legacy:
1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

Bitcoin SegWit:
bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq

Ethereum:
0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7

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