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Caravan

Open-source multisig coordinator by Unchained Capital. Web-based tool for building and managing multisig transactions without installing software.

Features​

  • Web-based coordinator — No installation required
  • Multisig vault creation — Build M-of-N setups with various hardware wallets
  • PSBT handling — Create, sign, and broadcast Partially Signed Bitcoin Transactions
  • Hardware wallet support — Coldcard, Trezor, Ledger, Keystone, and more
  • Address verification — Verify receiving addresses on hardware devices

Use Cases​

  • DIY multisig without running a full node
  • Quick vault setup for testing
  • Collaborative signing across geographically distributed keys
  • Backup coordinator if primary software fails

Trade-offs​

  • Web-based = requires trust in the hosted instance (or self-host)
  • No built-in blockchain data; requires connection to a block explorer or node
  • Less feature-rich than Specter Desktop or Nunchuk
  • Best used as a backup or lightweight coordinator

Resources​