Crypto Wallet QR Code Generator
BIP-21 & EIP-681 URI Standards
Specification & Encoding Standards
BIP-21 & EIP-681 Cryptographic Payment Standards
Cryptocurrency wallet addresses are long cryptographic hexadecimal strings where a single mistyped character can result in permanent loss of funds. A crypto QR code encodes your public deposit address using standardized protocol URI schemes — such as BIP-21 for Bitcoin and EIP-681 for Ethereum — allowing wallet apps like MetaMask, Trust Wallet, and Coinbase to populate the exact recipient and requested amount in a single camera scan.
BIP-21 and EIP-681 Payment Standards
Bitcoin payments utilize the BIP-21 standard (bitcoin:<address>?amount=<val>&label=<name>), ensuring native hardware and mobile wallets parse the payment request accurately.
Ethereum and EVM networks utilize EIP-681 (ethereum:<address>?value=<wei>). We support Bitcoin, Ethereum, Solana, and USDT protocols with automatic parameter formatting.
Optical Payment Safety Recommendations
Before signing transactions in MetaMask, Coinbase, or Phantom, visually cross-reference the displayed checksum characters with your physical address.
We enforce 25% to 30% Reed-Solomon redundancy for crypto QR codes to prevent partial scratch or glare distortion from misrouting transactions.
Frequently Asked Questions
Can someone steal my coins by scanning my QR code?
No. The QR code only contains your public receiving address. Your private keys and seed phrases are never encoded.
Why do you recommend Error Correction Level H for crypto?
Financial transactions require zero ambiguity. Level H allows up to 30% of the code to be smudged or scratched while still decoding the correct payment address accurately.
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