USDT ERC-20 QR Code Generator: Free, No Sign-Up, Download PNG or SVG

What goes into an ERC-20 payment QR

In «Address only» mode the QR holds just your 0x address. In «Address + amount» mode it holds an EIP-681 URI that calls the USDT contract's transfer function. Note the unusual structure: the address right after ethereum: is the token contract, and your address goes into the address parameter.

The amount is an integer in the token's smallest units. USDT on Ethereum has 6 decimals, so 25 USDT is 25000000 and 0.5 USDT is 500000. You type the human amount; the generator does the conversion and refuses amounts with more than 6 decimals. @1 is the chain ID of Ethereum mainnet.

Test before you rely on the amount mode

Wallets parse token transfer URIs inconsistently. MetaMask Mobile and several other wallets read them correctly and open a USDT send screen with the amount filled in. Others take the first address in the link — the USDT contract — as the recipient, ignore the amount, or show an error. Sending USDT to the token contract itself is a mistake that usually cannot be undone.

So the rule is simple: scan the QR with the wallets your payers actually use and check that the recipient shown is your address, not 0xdAC17F…. If you do not know which wallet the payer has, use «Address only» and put the amount in the caption or the message next to it. That version works everywhere.

Ethereum addresses and network confusion

An Ethereum address is 0x followed by 40 hex characters. Mixed upper and lower case is the EIP-55 checksum: if you paste it that way, a single typo is detected. All lowercase is valid too, just without that protection.

The same 0x address exists on every EVM network — BNB Chain, Arbitrum, Polygon, Base and others. That is convenient and dangerous: a payer can send USDT on BNB Chain to your address, and if your wallet only watches Ethereum, the funds seem to vanish. They are usually recoverable by adding that network to a self-custody wallet, but not always on exchange deposit addresses. Label the code «USDT · ERC-20 (Ethereum)» and say the network in words.

Gas, amounts and practical uses

The payer pays gas in ETH, and a USDT transfer costs more gas than a plain ETH transfer. A payer with USDT but no ETH cannot send. For small sums, ERC-20 fees can be a large share of the payment — compare with TRC-20 or Solana before you choose which network to offer.

• B2B invoices and contractor payments, where ERC-20 is often the required network: PNG with caption plus invoice number.
• Payment instructions on a website: address only, network label, amount in the text — safest for unknown wallets.
• Printed signage at an office or event: SVG, address only.

Privacy and safety

Ethereum is fully transparent: whoever has your QR can see the address's token balances and history. Keep a dedicated receiving address for public use. Watch for address poisoning — lookalike addresses sending you zero-value or tiny token transfers — and always copy your address from the wallet's receive screen. The generator does not upload the address; the QR is built in the page.