Fee, total input/output value, and confirmation status for any Bitcoin transaction
Every Bitcoin transaction is public and permanently recorded on the blockchain. Paste a transaction ID (TXID), the same identifier shown by any wallet or exchange after you send or receive, to see exactly what it moved: total value in, total value out, and the difference, which is the miner fee.
How to use it: paste a 64-character transaction ID and click "Look up". The fee is calculated as total input value minus total output value, exactly how Bitcoin itself defines it.
Your wallet or exchange shows it after you send or receive Bitcoin, usually labeled "Transaction ID," "TXID," or "Transaction Hash", a 64-character string of letters and numbers.
The transaction has been broadcast to the network but isn't in a mined block yet, it's sitting in the mempool waiting to be included. Once a miner includes it in a block, it becomes confirmed and the block height/time will be shown.
No, this only looks up a transaction ID you provide against the public blockchain. It never asks for a private key, seed phrase, or wallet connection.