03 / Tools

Bitcoin tools

Small, free and private. No accounts, no tracking.

01 Live

How long will my transaction take?

Enter a fee rate and see where it sits in the queue right now.

Check 02 Offline

BIP39 seed phrase checker

Check words and checksum, or list the valid last words. Works offline.

Check 03 Math

Vanity address calculator

How long to find an address that starts with your name?

Calculate