Is this address okay?
Paste a wallet address, the tool guesses the network on its own (Bitcoin, Ethereum, Solana, Litecoin, Cardano) and checks whether you made a typo while copying it.
It runs in your browser, so the address never leaves this tab. You can safely test even brand-new, unused addresses.
We verify the check digit (similar to the last digit on a credit card or bank account number) and the format. If something is off, we tell you exactly what. Whether you missed a character, typed *"O"* instead of *"0"*, or mixed up the wrong network.
A note: this is only a form check. We do not verify whether the address has any funds, or whether it belongs to the person you intend to pay. That is on your wallet and your attention.
How to use it
- Paste the address into the field above. The whole thing, do not cut off the end, that is where the check digit lives.
- The tool detects the network automatically (Bitcoin, Ethereum, Solana, Litecoin, or Cardano). You will see a coloured dot and the network name.
- Check two things: that the detected network matches what you planned (sending Bitcoin but the tool says Ethereum, STOP), and that the address is green (Valid).
- If red (Invalid), there is a short explanation underneath. The usual suspects: a missing letter, *"O"* swapped for *"0"*, or uppercase letters where they should be lowercase.
- Click an example below the field, it loads a known-good test address so you can see what a green result looks like.
When this is useful
Six typical situations where this validator gives you a concrete answer:
- You are sending a larger amount for the first time. The worst moment to mess up. Paste the address into the validator, read which network it claims (must be exactly the one your recipient uses) and whether the check is green. Only then paste into your wallet.
- A client sent you a payment address by email. Make sure no garbled characters slipped in. People who type addresses by hand often confuse *"I"* (capital i) with *"l"* (lowercase L) or *"0"* with *"O"*.
- You are building a form that accepts crypto payments. The validator lets you test dozens of addresses instantly. Paste, see result, refine your regex. No libraries to install locally.
- **Someone sends you a suspicious *"claim your reward"* link. Sometimes the body contains a destination address. Paste it here, if the network is different from what they advertise** (they talk Bitcoin but the address is Ethereum), it is almost certainly a scam.
- You are cleaning up a client spreadsheet. A list of crypto addresses with mixed quality. Run them through the validator, catch typos before they cause trouble.
- Teaching a non-technical relative. Show them what a real Bitcoin address looks like. Paste a few, they see one green, another red. No *"cryptography"* lecture needed.