Bitcoin & Ethereum QR Code Generator
One scan prefills your wallet address — and optionally the amount — in the sender's wallet app. No mistyped addresses. Generated entirely in your browser.
- No sign-up, nothing uploaded
- Style presets, gradients & shapes
- Scan codes back, right in your browser
- PNG · SVG · JPEG
- Save codes with Google sign-in optional
- L
- Lowest. Fine on a clean screen. Breaks if smudged or covered.
- M
- Balanced. The right choice for most uses.
- Q
- Sturdier. Good for small prints or busy backgrounds.
- H
- Toughest. Survives wear and works with a center logo.
- Crisp
- Few modules, large and easy to read — even small or on screen.
- Moderate
- Denser. Print at a decent size and keep good contrast.
- Dense
- Lots of data. Print large, raise error correction, or shorten the content.
How a crypto QR code works
A crypto QR code encodes a payment link — bitcoin:bc1q…?amount=0.001 for Bitcoin (the BIP-21 format) or ethereum:0x… for Ethereum. Wallet apps recognize these on scan and prefill the recipient address, and optionally the amount, in the send screen. The sender still reviews and confirms the transaction in their own wallet; a QR code can never move funds by itself.
Since one wrong character in a pasted address sends funds into the void, scanning instead of typing isn't just convenient — it's the safer way to share an address. Common uses: tip jars, donation posters, invoices, merch tables, and stream overlays.
Filling in the fields
Pick the coin, paste your receiving address (a bc1…/1…/3… address for Bitcoin, 0x… for Ethereum), and optionally set an amount — useful for fixed-price invoices, and the sender can still edit it. Bitcoin codes also take an optional label that many wallets show alongside the payment ("Coffee fund").
Safety notes
Your address is public information — printing it exposes nothing a blockchain explorer wouldn't; a receiving address can never be used to withdraw. The thing to be careful about is accuracy: always test-scan with your own wallet and verify the address matches before printing, and check the first and last few characters of the address on the printed piece. Reticle generates the code entirely in your browser — your address is never uploaded.
Frequently asked questions
Which cryptocurrencies are supported?
Bitcoin and Ethereum. Bitcoin codes use the BIP-21 payment format with optional amount and label; Ethereum codes carry the address with an optional amount.
Is it safe to print my wallet address on a poster?
Yes — a receiving address is public information, and knowing it never allows withdrawals. The real risk is a wrong address, so test-scan the code with your own wallet and verify the characters before printing.
Does the amount lock what the sender pays?
No — it prefills the amount in their wallet as a convenience, and they can edit it before confirming. For fixed invoices, state the amount on the sign too.
Can a QR code take money from someone who scans it?
No. The code only prefills a payment the sender must review and confirm in their own wallet. Nothing is transferred by scanning.
Is my address uploaded or stored anywhere?
No. The code is generated entirely in your browser; your address never leaves your device unless you sign in and explicitly save the code.