Crypto QR code generator
Create a QR code for your crypto wallet address — Bitcoin, Ethereum, Litecoin, Dogecoin, or Solana — with an optional payment amount. Free PNG and SVG downloads.
Style
There's an API for this — free, no key
Everything this generator does is also one GET request away. Build any QR code above, press API, and you get a shareable URL that renders the exact same design — PNG or SVG, any size up to 2048px, all dot styles, marker shapes, and colors.
https://in.bio/api/qr?url=https://example.com&dot_style=dots&marker_shape=circle&foreground=1a56db
30 requests/minute per IP, cached for a day. Read the API docs
How the Crypto QR code generator works
Pick the coin, paste your wallet address, and optionally set an amount — the code encodes a standard payment URI (like bitcoin:bc1q...?amount=0.05) that wallet apps recognize. The payer scans it, their wallet opens with the address and amount prefilled, and nothing is typed by hand — which is exactly where expensive mistakes happen.
The address is encoded in the pattern itself: nothing is stored on our servers and the code never expires. Print it on invoices, show it at checkout, or add it to a stream overlay for tips. Before publishing, double-check that the address in the preview matches yours character for character — a QR code is only as correct as the address you paste.