How to Create a Free Crypto Payment QR Code
Crypto wallet addresses are long, complex strings that are easy to mistype. OmniQRHub's free crypto QR code generator encodes your Bitcoin, Ethereum, or USDT address into a scannable QR code — customers open their wallet app, scan, and send payment with zero risk of address errors.
Step-by-Step Guide
- Select your cryptocurrency — Bitcoin (BTC), Ethereum (ETH), or Tether (USDT).
- Paste your wallet address — copy it directly from your wallet app to avoid errors.
- Set an amount (optional) — pre-fill a specific payment amount.
- Download the QR code card — print it for your shop, add it to your website, or share digitally.
Creating a USDT QR Code — Pick the Right Network First
USDT is the one to be careful with. Unlike Bitcoin, Tether exists on several different blockchains, and the same-looking address is not interchangeable between them. Sending USDT to the right address on the wrong network is the most common way people lose funds, and it is usually unrecoverable.
- USDT TRC-20 (Tron). Addresses start with
T. Low fees and fast confirmation, which is why most people accepting USDT payments choose it. - USDT ERC-20 (Ethereum). Addresses start with
0x. Widely supported by exchanges, but gas fees can exceed the payment itself on small amounts. - USDT BEP-20 (BNB Smart Chain). Also starts with
0x, and is not the same as ERC-20 despite looking identical. Check which one your wallet is actually showing you.
Because ERC-20 and BEP-20 addresses are visually indistinguishable, label the network clearly on any printed or published code — put "USDT (TRC-20)" or "USDT (ERC-20)" right on the card. A QR code removes typing mistakes, but it cannot tell the sender which chain you meant.
Bitcoin and Ethereum Address Formats
Bitcoin and Ethereum are more forgiving, but the address format still matters for compatibility.
- Bitcoin native SegWit addresses begin with
bc1and carry the lowest fees. A small number of older services still can't send to them. - Bitcoin legacy and SegWit-compatible addresses begin with
1or3. Universally accepted, slightly more expensive to spend from. - Ethereum uses a single
0xformat for ETH and for every ERC-20 token, which is exactly why the network label matters more than the address does.
Whichever you use, send a small test payment to your own code before printing it or putting it on a website. Scan it with the wallet your customers will actually use, confirm the address matches character-for-character, and only then commit it to print.
Why Use a Crypto QR Code?
🎯 Eliminate Address Errors
Crypto addresses are 26-42 characters long. One wrong character means lost funds forever. QR codes eliminate this risk entirely.
⚡ Instant Scanning
Customers open their wallet app, scan the QR code, and the address + amount are pre-filled. One tap to confirm.
🔒 Private & Secure
Your wallet address is encoded locally in your browser. OmniQRHub never stores, transmits, or has access to your address.
🌐 Universal Standard
Uses the standard bitcoin:, ethereum: URI formats recognized by all major wallet apps.
Frequently Asked Questions
How does a Bitcoin QR code work?
bitcoin:address?amount=X URI format. When scanned with a Bitcoin wallet app (like Coinbase, Trust Wallet, or Electrum), it pre-fills the recipient address and amount.Which wallet apps can scan these QR codes?
Frequently Asked Questions
How does a Bitcoin QR code work?
A Bitcoin QR code encodes your wallet address (and optionally an amount) in the standard bitcoin: URI format. When scanned with a crypto wallet app, it pre-fills the recipient address and amount, making payments error-free.
Which cryptocurrencies are supported?
OmniQRHub supports Bitcoin (BTC), Ethereum (ETH), and Tether (USDT). Each generates a QR code in the standard URI format recognized by major wallet apps.
Is my wallet address stored on your servers?
No. OmniQRHub generates the QR code entirely in your browser. Your wallet address is never sent to or stored on any server.