TxBooks Tools

Free Bitcoin dev tools

A growing collection of open, no-install utilities for Bitcoin developers and self-custody users. Paste your data, get answers. Your keys never leave your browser on the tools that derive them.

Built and maintained by TxBooks.

Tools

xpub Explorer

See every address derived from an xpub, ypub, or zpub — balances included.

BOLT11 Decoder

Decode a Lightning invoice to amount, timestamp, and routing hints.

PSBT Decoder

Inspect and validate a Partially Signed Bitcoin Transaction.

BIP32 Path Explainer

Understand what m/84'/0'/0'/0/5 actually means.

Lightning Address Validator

Verify a Lightning address (e.g. alice@getalby.com) resolves correctly.

BOLT12 Offer Decoder

Decode a Lightning offer (BOLT12) — the new payment primitive.

Script Decoder

Break a Bitcoin script into opcodes, with human-readable explanations.

Mempool Fee Forecaster

See current fee rates across five priority tiers with a sats + USD cost estimator.

Base58 / Bech32 Codec

Encode and decode Bitcoin address formats side-by-side.

Taproot Descriptor Visualizer

Render a Taproot output descriptor as a tree of spending paths.

LND Rebalance Calculator

Estimate the cost of rebalancing Lightning channels.

Signet Faucet

Working signet faucet links, address validator, and signet primer.

More on the way

New tools ship every few weeks. Got an idea or a tool you wish existed? Email us at support@txbooks.app.