Crypto Wallet QR Generator

What exactly is encoded in the QR code?

For Bitcoin, Litecoin, Dogecoin and Bitcoin Cash it is a URI of the form scheme:address, optionally followed by ?amount=…&label=…. For Ethereum it is ethereum:address with nothing after it. For Solana and “Other / raw address” it is the plain address with no scheme.

Does the tool check that my address is valid?

No. It trims spaces and builds a string; it does not verify a checksum, address format, or which network the address belongs to. A QR code cannot be undone once people have used it, so scan it yourself and compare the full address against your wallet before you share it.

How is the amount written?

The number you type is parsed and written as amount=, for example 0.001 becomes amount=0.001. Zero, negative or non-numeric values are dropped and the amount is simply left out. Very small numbers are written in full decimal form rather than with an exponent like 1e-7.

Why is the amount ignored for Ethereum?

Ethereum’s URI standard (EIP-681) does not describe amounts with an amount parameter the way Bitcoin-style URIs do. Rather than pre-fill a value a wallet might misread, the tool encodes ethereum:address only. Solana and the raw option also carry no amount.

How is the label encoded?

It is percent-encoded, so spaces become %20, # becomes %23 and & becomes %26. A label of Invoice #42 & tip appears as Invoice%20%2342%20%26%20tip. Wallets differ in whether they display a label at all.

What if I paste an address that already starts with the scheme?

The matching prefix is removed once and re-added. Pasting bitcoincash:qpexample gives bitcoincash:qpexample rather than bitcoincash:bitcoincash:qpexample.

Is a wallet address safe to display publicly?

An address is meant to be shared so others can send to it, but anyone can see its public transaction history on that network. Use a fresh address if you want to keep activity separate. Nothing here is financial advice.