Interactive Tools

Explore Lightning Network concepts hands-on with these interactive tools. All tools run in your browser — no data is sent to any server.

Featured

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BOLT4 Onion Packet Builder

Construct and inspect Lightning onion packets step-by-step. Understand how payments are routed through multiple hops while maintaining privacy through onion encryption.

BOLT4 Onion Routing Cryptography

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Available Tools

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BOLT4 Onion Packet Builder

Construct and visualize onion packets for multi-hop routing.

Available

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BOLT-11 Invoice Decoder

Parse and decode Lightning invoices to see all fields.

Coming Soon

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Fee Calculator

Calculate routing fees for multi-hop payments.

Coming Soon

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Channel Balance Simulator

Visualize channel balances and simulate payments.

Coming Soon

Planned Tools

HTLC Visualizer

Interactive HTLC lifecycle

Route Simulator

Multi-hop routing demo

Payment Flow Animation

Animated payment visualization

MPP Visualizer

Multi-part payment demo

Commitment Tx Visualizer

Transaction structure

Key Pair Generator

Generate LN key pairs

Want to contribute a tool?

All tools are open source. We welcome contributions from the community.

View on GitHub