Simple, database-free Bitcoin blockchain explorer, via RPC. Built with Node.js, express, bootstrap-v4.

This tool is intended to be a simple, self-hosted explorer for the Bitcoin blockchain, driven by RPC calls to your own bitcoind node. This tool is easy to run but currently lacks features compared to database-backed explorers.

I built this tool because I wanted to use it myself. Whatever reasons one might have for running a full node (trustlessness, technical curiosity, supporting the network, etc) it's helpful to appreciate the "fullness" of your node. With this explorer, you can not only explore the blockchain (in the traditional sense of the term "explorer"), but also explore the functional capabilities of your own node.

Live demos are available at:

• BTC: https://btc.chaintools.io
• LTC: https://ltc.chaintools.io

• Browse blocks
• View block details
• View transaction details, with navigation "backward" via spent transaction outputs
• View JSON content used to generate most pages
• Search by transaction ID, block hash/height, and address
• Optional transaction history for addresses by querying configurable ElectrumX servers
• Mempool summary, with fee, size, and age breakdowns
• RPC command browser and terminal
• Currently supports BTC, LTC (support for any Bitcoin-RPC-protocol-compliant coin can be added easily)

The below instructions are geared toward BTC, but can be adapted easily to other coins.

1. Install and run a full, archiving node - instructions. Ensure that your bitcoin node has full transaction indexing enabled (txindex=1) and the RPC server enabled (server=1).
2. Synchronize your node with the Bitcoin network.
3. "Recent" version of Node.js (8+ recommended).

npm install -g btc-rpc-explorer
btc-rpc-explorer

If you're running on mainnet with the default datadir and port, this Should Just Work. Open http://127.0.0.1:3002/ to view the explorer.

You may set configuration options in a .env file or using CLI args. See configuration for details.

Configuration options may be passed as environment variables or by creating an env file at ~/.config/btc-rpc-explorer.env or at .env in the working directory. See .env-sample for a list of the options and details for formatting .env.

You may also pass options as CLI arguments, for example:

btc-rpc-explorer --port 8080 --bitcoind-port 18443 --bitcoind-cookie ~/.bitcoin/regtest/.cookie

See btc-rpc-explorer --help for the full list of CLI options.

1. docker build -t btc-rpc-explorer .
2. docker run -p 3002:3002 -it btc-rpc-explorer