Testnet4.dev

Testnet Resources for the Bitcoin Developer

Why Testnet4?

Stability — fixes the block storm bug and has more consistent block generation.
Lower fees — fees are around 1 sat/vB without the spikes of up to 10,000 sat/vB that characterized testnet3
Easier infrastructure — chain only has ~70,000 blocks instead of ~4 million blocks for testnet3, making it faster, cheaper, and easier to spin up a fullnode.

Tools

Block Explorers

State-of-the-art modern block explorer with robust API and visualizations.

Block explorer for the Trezor suite of applications.

Faucets

These faucets can be claimed every 24 hours.

0.005 BTC, no login required.

0.005 BTC, login required.

~0.0002 BTC, no login required.

~0.0006 BTC, no login required.

Wallets

Web/SDK multisig wallet with self-custodial/custodial support.

Desktop wallet.

Web testnet4-only wallet with seed stored in URL.

Desktop/mobile BTC meta-protocol wallet.

Documentation

BIP-94

Finalized Bitcoin Improvement Proposal for testnet4.

GitHub Mirror →

Implementation

Discussion

Genesis

Griefing Bitcoin Testnet

Article referenced in the genesis block.

Read the article →

Additional Resources