Live on Bitcoin Testnet · UTXO Transaction Visualizer

Understand Bitcoin UTXO transactions visually

Paste a Bitcoin testnet transaction ID, or pick a recent one. Then step through how inputs (spent UTXOs) turn into outputs (new UTXOs), how fees are computed, and how the UTXO set changes.

Transaction ID (txid)64 hex characters · testnet only

Explain this transaction

Step through how this transaction spends old UTXOs, creates new ones, and pays a fee. Use Beginner for intuition, or Technical to see more protocol detail.

What you'll see here

Inputs on the left (UTXOs being spent)
The transaction in the center (where value is recombined)
Outputs on the right (new UTXOs being created), with a likely change output highlighted
A clear fee breakdown: sum(inputs) − sum(outputs)