Home › Tools › Address checker
Wallet address checker
Before a transfer, a withdrawal, or claiming an airdrop, paste the address in here to check its format, length, and EIP-55 checksum. Mistype a single character and the tool will warn you. The address is checked in your browser and never sent out.
Supports Ethereum, BNB Smart Chain and other EVM addresses. Bitcoin, Solana, TRON and other formats are not supported.
Wallet addresses: where beginners most often slip up
What an address looks like
An EVM address — Ethereum, BNB Smart Chain and the like — starts with 0x followed by 40 hexadecimal characters (0-9 and a-f), 42 characters in total. One too few, one too many, or any illegal character beyond 0-9 and a-f means you've pasted it wrong.
The casing isn't random
You may have noticed addresses have both uppercase and lowercase letters. That isn't for looks — it's the EIP-55 checksum: the content of the address decides whether each character should be upper- or lowercase. Change any single character and the casing no longer matches, and this tool catches it. So an all-uppercase or all-lowercase address, while still valid, loses that protection — check it character by character.
The three most common paste mistakes
One: you only copy half of it and the ends get cut off. Two: copying from a chat message and picking up a stray space or line break. Three: clipboard-hijacking malware quietly swapping the address. The third is the scariest, so after pasting always eyeball the first and last few characters yourself — don't just trust that "something got pasted."
Why a large amount always needs a small test first
A blockchain transfer can't be clawed back once it's sent. No amount of format checking can guarantee the address belongs to the person you think it does. Before sending a large amount, send a small one first, wait for the other side to confirm it arrived, then send the rest — that's the most practical safeguard there is.
What this tool doesn't do
It only checks whether the address format itself is valid. It can't — and won't — tell you whether the address is a scam, who it belongs to, or whether there's anything in it. Judging whether the other side is trustworthy is still up to you.