🔨 Bitcoin Transaction Builder
Learn how Bitcoin transactions work by building them step-by-step
Available UTXOs (Inputs)
Select UTXOs to spend:
UTXO 1
Amount: 0.05 BTC
TxID: abc123...def456
Amount: 0.05 BTC
TxID: abc123...def456
UTXO 2
Amount: 0.03 BTC
TxID: ghi789...jkl012
Amount: 0.03 BTC
TxID: ghi789...jkl012
UTXO 3
Amount: 0.02 BTC
TxID: mno345...pqr678
Amount: 0.02 BTC
TxID: mno345...pqr678
Tip: UTXOs are like bills in your wallet. You need to select enough to cover your transaction amount plus fees.
📤 Transaction Outputs
Where to send Bitcoin:
Tip: If you don't spend all your input UTXOs, the remainder goes to fees unless you create a "change" output back to yourself.
📋 Transaction Preview
None selected
0.00000000 BTC
0.00000000 BTC
Slow (1 sat/vB)
Medium (10 sat/vB)
Fast (100 sat/vB)
Estimated Fee: 0.00001000 BTC
0.00000000 BTC