Guide · 2026
Best Multisig & Collaborative Custody (2026)
The 10 most complete multisig & collaborative custody listings on Bitcoin Ciphers, ranked by how much verified public information each publishes: description, services, pricing, and a live website. 21 are listed in this category. Order is not a quality rating, and no listing pays for its rank.
- 1
Bitcoin Keeper
Bitcoin Keeper is an open-source mobile wallet built around multisig self-custody, developed by BitHyve. It lets users assemble vaults from multiple hardware and software signers while retaining full control of their keys.
- Listed under Multisig & Collaborative Custody, Software Wallets
- 6 services listed, including open-source multisig vaults, hardware signer support, inheritance tooling
- Serves the whole US
- 2
Bitcoin Safe
Bitcoin-Safe is free and open-source desktop software for managing bitcoin cold storage wallets, built on the Bitcoin Development Kit. It requires a hardware signer and provides a modern interface for single-signature and multisig cold storage across Windows, macOS and Linux.
- Listed under Software Wallets, Multisig & Collaborative Custody, Seed Backup & Metal Storage
- 6 services listed, including cold storage wallet management, multisig wallet setup, hardware signer workflows
- Pricing published: Free
- Serves the whole US
- 3
Bitkey
Bitkey is a bitcoin-only 2-of-3 multisig wallet combining a hardware device, a mobile app key and a server key, so there is no seed phrase to write down. The design includes built-in inheritance and recovery flows while the owner keeps control of spending.
- Listed under Hardware Wallets, Multisig & Collaborative Custody
- 6 services listed, including 2-of-3 multisig by default, no seed phrase, fingerprint unlock
- Pricing published: $250
- Serves the whole US
- 4
BlueWallet
BlueWallet is an open-source mobile and desktop bitcoin wallet that includes a Multisig Vault feature alongside standard and watch-only wallets. Keys never leave the user's device, so the vault is fully self-custodial.
- Listed under Software Wallets, Multisig & Collaborative Custody
- 6 services listed, including multisig vault, watch-only wallets, self-custodial mobile wallet
- Pricing published: Free
- Serves the whole US
- 5
Casa
Casa provides multi-key self-custody for bitcoin using keys spread across several devices and locations, so no single device failure loses access. Plans add white-glove security guidance, inheritance planning and recovery support while the customer keeps control of their own keys.
- Listed under Multisig & Collaborative Custody, Seed Backup & Metal Storage, Software Wallets
- 6 services listed, including multisig key management, inheritance planning, key recovery support
- Pricing published: From $250/year (Standard); Premium $2,100/year
- Serves the whole US
- 6
Electrum
Electrum is a long-running open-source bitcoin wallet that supports multisig wallets, splitting the permission to spend coins between several wallets. It also supports cold storage with watch-only wallets, hardware devices and third-party multisig service plugins.
- Listed under Software Wallets, Multisig & Collaborative Custody
- 6 services listed, including multisig wallets, cold storage and watch-only wallets, hardware wallet support
- Pricing published: Free
- Serves the whole US
- 7
Krux
Krux is open-source firmware that turns off-the-shelf Kendryte K210 devices into airgapped bitcoin transaction signers, commonly used as one of the signers in a multisig setup. It also provides tooling for creating, encrypting and recovering mnemonic backups.
- Listed under Hardware Wallets, Multisig & Collaborative Custody, Software Wallets
- 6 services listed, including air-gapped qr signing, runs on off-the-shelf devkits, multisig
- Pricing published: Free
- Serves the whole US
- 8
Liana
Liana, built by Wizardsardine, is a bitcoin wallet whose spending policies include timelocked recovery paths so users are never locked out without handing keys to a third party. A free open-source community edition runs against your own node, while Liana Business adds hosted infrastructure, policy design and PSBT signing coordination for organisations.
- Listed under Multisig & Collaborative Custody, Software Wallets
- 6 services listed, including timelocked recovery wallets, miniscript spending policies, psbt signing coordination
- Pricing published: Community edition Free; Liana Business 0.016% of bitcoin secured per month
- Serves the whole US
- 9
Nunchuk
Nunchuk is a multisig wallet and bitcoin inheritance platform that operates without KYC and is built on open standards so wallets can be recovered independently of the company. Its assisted multisig plans add on-chain or off-chain timelock inheritance protocols, key health checks and guided claims for heirs.
- Listed under Multisig & Collaborative Custody, Software Wallets
- 6 services listed, including assisted multisig wallets, on-chain timelock inheritance, key health checks and rollover
- Pricing published: Free; Iron Hand $120/year; Honey Badger $480/year
- Serves the whole US
- 10
Sparrow Wallet
Sparrow is a desktop bitcoin wallet with full support for single-signature and multisig wallets across common script types. It connects to your own node or a public server and works with hardware signing devices, keeping all keys under the user's control.
- Listed under Software Wallets, Multisig & Collaborative Custody
- 6 services listed, including multisig wallet coordination, hardware wallet integration, psbt construction and signing
- Pricing published: Free
- Serves the whole US