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Specter Desktop

Open-source DIY multisig coordinator for Bitcoin. Runs as a desktop application with optional hardware wallet integration.

Features​

  • Multisig coordination — Build and manage M-of-N setups
  • Hardware wallet support — Works with most major hardware wallets
  • Air-gapped option — Can run on an offline machine
  • Full node integration — Connects to Bitcoin Core or other backends
  • PSBT workflow — Uses Partially Signed Bitcoin Transactions for air-gapped signing

Use Cases​

  • Personal sovereign multisig vaults
  • Family or small-group shared custody
  • Inheritance planning with geographically distributed keys

Trade-offs​

  • Requires technical setup and ongoing maintenance
  • User is fully responsible for backup and recovery
  • No recovery service if keys are lost
  • Multisig — Multisig concepts and configurations
  • Custody Models — Self-custody model
  • Casa — Managed alternative to DIY multisig

Resources​