About the Bitcoin Balance Checker
Every Bitcoin address is public, and anyone can see how much it holds. This tool lets you paste an address and read its balance without installing a wallet or creating an account. It first checks the address format in your browser, then asks the free public service mempool.space (or blockstream.info when that one is busy) for the numbers. You see the confirmed balance in BTC and satoshis, any pending transactions, the total ever received and sent, and how many transactions the address has. It is read-only: it cannot move money, and it never asks for a seed phrase, private key or password. Your address goes straight from your browser to the lookup service and does not pass through Tezmy Tools.
Updated October 2026
How to use the Bitcoin Balance Checker
- 1Paste a Bitcoin address that starts with 1, 3 or bc1 into the box.
- 2Press Check balance. The tool checks the format first, then looks the address up.
- 3Read the confirmed balance, then the pending change, total received, total sent and transaction count.
- 4Type a price for one bitcoin if you want to see a money value for the balance.
- 5Press Copy result to keep the numbers as plain text.
What a Bitcoin balance really means
Bitcoin does not keep account balances. It keeps a list of unspent outputs, and an address balance is the sum of the unspent outputs that can be spent by that address. When you pay someone, whole outputs are spent and the leftover goes to a new change output, often on a different address. That is why a wallet balance can be spread over many addresses, and why an old address can show zero even though your wallet still holds money.
The confirmed balance counts only outputs that sit in a mined block. The pending figure shows what would change if the waiting transactions are mined. If you are expecting a payment, look at the pending line and then follow the payment with the Bitcoin Transaction Status Checker.
Privacy and safety when you look up an address
- A lookup tells the service your IP address and the address you asked about. If that matters to you, use a VPN or run your own node.
- Never share a seed phrase, a private key or an extended private key. A balance lookup never needs them.
- Scammers send tiny payments to addresses to make a fake history. Do not copy an address from your history for a new payment: copy it from the source you trust.
- Compare the first and last characters of an address on two screens before you send a large amount.
Useful next steps
If a lookup fails because the address is mistyped, run it through the Bitcoin Address Validator, which checks the checksum offline. To see what a balance is worth, convert it with the Satoshi to BTC Converter or the Bitcoin Price Converter. If you plan to send coins, estimate the network cost first with the Bitcoin Fee Estimator.
Features
- Read-only: no wallet connection, no sending
- Confirmed balance in BTC and satoshis
- Shows unconfirmed transactions that are still pending
- Total received, total sent and transaction count
- Checks the address checksum before any lookup
- Refuses seed phrases and private keys, and clears them
- Uses mempool.space with blockstream.info as a backup
Frequently asked questions
Can I check the balance of a Bitcoin address that is not mine?
Yes. Bitcoin works on a public ledger, so the balance and history of every address are visible to anyone. That is also why privacy needs care: anyone who learns an address can look at it.
Why does my balance show zero when I just sent money?
A new transaction first waits in the mempool until a miner puts it in a block. The confirmed balance only changes after that, usually within about ten minutes, but fees that are too low can make it much longer. The pending line shows waiting transactions.
Do I need to enter my seed phrase or private key?
No, never. A balance check only needs the public address. If you paste a seed phrase or a private key by mistake, this tool refuses it, does not send it anywhere and clears the box. Do not type those into any website.
Why can the balance be different from what my wallet shows?
A wallet usually owns many addresses and adds them together, while this tool looks at one address. Wallets also show unconfirmed amounts differently and may count a fiat price. Check the address your wallet gave you for that payment.
Which address types work?
Legacy addresses starting with 1, script addresses starting with 3, native SegWit addresses starting with bc1q and Taproot addresses starting with bc1p. Testnet addresses are refused because they hold no real value.
Where does the data come from?
From the public Esplora API of mempool.space, with blockstream.info as a fallback. Your browser calls them directly. They may limit requests when they are busy, and then the tool tells you to wait a minute.
Is the money value exact?
The BTC and satoshi balances are exact. The money value uses the price you type, so it is only as accurate as that price, and it is not financial advice.