Public utilities · free · no signup

Free Bitcoin tools.

Every utility below runs in your browser against the same routed RPC fleet that powers chainkit — no signup, no key, no limits worth mentioning. They exist because we needed them; you get them for free.

Fee estimator

Live priority, standard, and economy sat-per-vbyte tiers.

/tools/fees live

Payment link

BIP21 payment link + QR for any address — set a BTC or fiat amount.

/tools/payment-link live

Address validator

P2PKH, P2SH, Bech32, and Taproot — across mainnet and testnets.

/tools/address offline

UTXO inspector

Unspent outputs for any address, sourced live across providers.

/tools/utxos live

Tx lookup

Confirmations, fee paid, and block context for any txid.

/tools/tx live

BTC ⇄ Fiat converter

Live exchange aggregated from CoinGecko + Binance.

/tools/rate live

Price history

Charted BTC → fiat history. Currency × range pickers, source-attributed.

/tools/history live

Provider scoreboard

Live scores per provider — what chainkit picks against.

/scoreboard live

Built on the MIT-licensed chainkit Go SDK. Want the same routing + payments in your own app? Start free