Generate Bitcoin private keys, public keys, and addresses. Client-side only.
Validate BTC addresses. Supports P2PKH, P2SH, and Bech32.
Decode raw Bitcoin transaction hex. See inputs, outputs, and values.
Decode BOLT-11 Lightning Network invoices.
Real-time Bitcoin network fee estimates. Sat/vB rates with USD cost. Data from mempool.space.
Generate BIP39 seed phrases (12-24 words). 100% client-side only.
Convert between BTC, SATS, USD, GBP. Live price, instant.